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		<id>https://enggeomb-heritage.a2hosted.com/index.php?title=St._Andrew%27s_Lock_and_Dam&amp;diff=442</id>
		<title>St. Andrew's Lock and Dam</title>
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		<updated>2013-09-10T00:07:34Z</updated>

		<summary type="html">&lt;p&gt;Cnowell: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;br /&gt;
== St. Andrew's Lock and Dam ==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[File:4083715791_873ec4b2ba_b.jpg]] &lt;br /&gt;
Completed in 1910, this engineering system is comprised of three elements; a dam, a lock, and a bridge. The design employed a Camere style dam and, at 240 metres long, it is the largest dam of this type ever built. It is also considered to be the only one in existence in the world. It continues to operate to this day, regulating the water level of the Red River, allowing river traffic to operate between Winnipeg and points downstream, and providing a link for road traffic across the river. &lt;br /&gt;
&lt;br /&gt;
== Contents ==&lt;br /&gt;
&lt;br /&gt;
'''When''' &lt;br /&gt;
&lt;br /&gt;
Dam constructed 1907-10. &lt;br /&gt;
&lt;br /&gt;
Bridge constructed 1912-13. &lt;br /&gt;
&lt;br /&gt;
Modifications in 1949 to increase loading capacity. &lt;br /&gt;
&lt;br /&gt;
Frame and curtain replacement in 1967. (1) &lt;br /&gt;
&lt;br /&gt;
Metallized in 1999 (2)  &lt;br /&gt;
&lt;br /&gt;
'''Where''' &lt;br /&gt;
&lt;br /&gt;
Lockport, MB  &lt;br /&gt;
{{#display_map:Lockport, MB | height= 400px| width= 400px}}&lt;br /&gt;
'''Why'''  &lt;br /&gt;
&lt;br /&gt;
Prior to it's construction, there wasn't a singular mode of transportation between areas downstream of Selkirk (including all of Lake Winnipeg) and areas upstream of St. Andrew's. At the time, there were no rail lines connecting Winnipeg with areas North of it. The elevation drop of the Red River (approximately 13 feet between between Middle Church and Lister Rapids) also prevented freighter ships from navigating through the area currently known as Lockport. &lt;br /&gt;
&lt;br /&gt;
Immediately after the opening of the locks and dam, freighter ships as large as the &amp;quot;Winnitoba&amp;quot;, which could carry 2,000 passengers and thirty-five carloads of freight, could  provide a viable link. These passenger and freighter ships ensured economically sustainable development of fisheries, farming land, and mineral resources. (3)&lt;br /&gt;
&lt;br /&gt;
With the competition of rail lines and road transportation, the use of the locks for river travel waned considerably by the middle of the 20th Century. However, the dam continues to provide a key role in flood mitigation as a control structure.  &lt;br /&gt;
&lt;br /&gt;
'''How''' &lt;br /&gt;
&lt;br /&gt;
The St. Andrew's Dam is a unique “Camere” style dam using moveable curtains consisting of horizontal sections of wood hinged together, which are raised or lowered to control water flows. Invented by French engineer M. Camere, this type of dam was popular in western Europe in the late nineteenth century. &lt;br /&gt;
&lt;br /&gt;
The structure consists of:&lt;br /&gt;
&lt;br /&gt;
Seven 15 m high concrete piers&lt;br /&gt;
&lt;br /&gt;
Steel trusses approximately 40 m long that span between the piers&lt;br /&gt;
&lt;br /&gt;
A 6 m high by 11 m wide concrete sill or fixed dam that joins the bottom of the piers.&lt;br /&gt;
&lt;br /&gt;
15 steel frames per span which are hung from the trusses, and&lt;br /&gt;
&lt;br /&gt;
89 wood curtains&lt;br /&gt;
&lt;br /&gt;
The design consists of a repeating series of two movable components. The first is a steel frame that is stored horizontally when the dam is not restricting flow. These frames are hung from the upper structure and are rotated down from an axis that is transverse to the flow of the river and located at the top end of the frame.&lt;br /&gt;
&lt;br /&gt;
Attached to these frames are curtains, 4 m long and 2.1 m wide and consisting of 50 individually sized Douglas Fir laths held together with brass hinges and pins. During the navigation season the curtains are individually rolled up to increase flow, or rolled down to restrict flow, depending on daily water flow rates in the river.&lt;br /&gt;
&lt;br /&gt;
'''Fun Facts'''&lt;br /&gt;
&lt;br /&gt;
The Canadian government constructed the dam and lock as part of a proposed river steamboat navigation extending from Winnipeg to Edmonton.&lt;br /&gt;
&lt;br /&gt;
The total cost of construction was 3.5 million dollars by 1913.&lt;br /&gt;
&lt;br /&gt;
It was opened by Hon Wilfred Laurier the PM of Canada from the deck of the Winnitoba which was built in Winnipeg.&lt;br /&gt;
&lt;br /&gt;
During construction, organizations prearranged excursions to see the work in progress.  A special trail for visitors was created from Winnipeg and Back.  The cost was 45 cents return, allowing them two hours to inspect the project. &lt;br /&gt;
&lt;br /&gt;
'''See also'''&lt;br /&gt;
&lt;br /&gt;
Camere dam, curtain dam (US) (it was invented by Camere and introduced in 1876-1880 at Port Villez on the lower Seine. In it wooden curtains that can be rolled up from the bottom were substituted for the needles in the Poiree weir) Camerewehr, Rolladenwehr, Jalousiewehr, Rollvorhangwehr&lt;br /&gt;
&lt;br /&gt;
'''Influence''' &lt;br /&gt;
&lt;br /&gt;
Key players&lt;br /&gt;
Mr. A.R. Dufresne - Construction Engineer. Mr. A. St. Laurent and H.E .Vautelet, Design Engineers&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
 &lt;br /&gt;
1 http://www.historicplaces.ca/en/rep-reg/place-lieu.aspx?id=4441&lt;br /&gt;
&lt;br /&gt;
2 http://www.tac-atc.ca/english/resourcecentre/readingroom/conference/conf2004/docs/s5/bowen.pdf&lt;br /&gt;
&lt;br /&gt;
3 http://www.mhs.mb.ca/docs/pageant/11/locks.shtml&lt;br /&gt;
&lt;br /&gt;
4 http://www.historicplaces.ca/en/rep-reg/place-lieu.aspx?id=4441&lt;br /&gt;
&lt;br /&gt;
5 http://lockportmanitoba.ca/history.swf &lt;br /&gt;
&lt;br /&gt;
6 http://www.rmofstclements.com/en/lockport-dam.html&lt;/div&gt;</summary>
		<author><name>Cnowell</name></author>
	</entry>
	<entry>
		<id>https://enggeomb-heritage.a2hosted.com/index.php?title=File:4083715791_873ec4b2ba_b.jpg&amp;diff=441</id>
		<title>File:4083715791 873ec4b2ba b.jpg</title>
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		<updated>2013-09-10T00:01:12Z</updated>

		<summary type="html">&lt;p&gt;Cnowell: The Lockport Dam facing south&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;The Lockport Dam facing south&lt;/div&gt;</summary>
		<author><name>Cnowell</name></author>
	</entry>
	<entry>
		<id>https://enggeomb-heritage.a2hosted.com/index.php?title=Flood_Controls_and_Protection&amp;diff=440</id>
		<title>Flood Controls and Protection</title>
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		<updated>2013-09-09T23:55:47Z</updated>

		<summary type="html">&lt;p&gt;Cnowell: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;br /&gt;
As a means of celebrating the role of engineering and geosciences for the 90th year of APEGM’s history, the Heritage&lt;br /&gt;
Committee began a series of articles in 2010, under the general theme of&lt;br /&gt;
“Liquid Assets” that link water to the economic and social development of the&lt;br /&gt;
province. This is a follow-up article in light of the spring and summer of&lt;br /&gt;
2011, when the liability side of water’s balance sheet affected the lives of&lt;br /&gt;
Manitobans and the contribution of engineering and geoscience to the flood&lt;br /&gt;
control and protection system have been both recognized and questioned. From&lt;br /&gt;
the experience of 2011 Manitobans, and Winnipeggers when they gaze beyond the&lt;br /&gt;
perimeter highway, now have an enhanced awareness of the realities of living in&lt;br /&gt;
the bottom of a former glacial lake.&lt;br /&gt;
 &lt;br /&gt;
Awareness of vulnerability to flooding has been with Manitobans since before the Province’s entry into confederation. The spring of 1826 brought the greatest flood to inundate the valley and Red River Settlement, estimated by engineers on the basis of journals and eye-witness recollection to have risen to an elevation of 764.87 ft. above sea level. The 1852 flood crested two feet lower than in 1826, but it caused more damage in the settlement due to urban growth and rapid rise due to a number of large ice jams. In May of 1950 the Red River crested at 757.87 ft. at James Avenue, creating a lake seven miles wide at Winnipeg's southern limits. &lt;br /&gt;
 &lt;br /&gt;
One of the earlier engineering papers on the mitigation of flooding was authored by D.L. McLean, who had previously been a design engineer on the Greater Winnipeg Water District aqueduct. It was published in 1920. Since then engineers have continued to be instrumental in implementing the Province’s system of flood control and protection. That contribution has been acknowledged throughout the system’s development, and was recognized by the association (APEGM at the time) during the Centennial of Engineering in Canada in 1987. The physical reminder is a plaque dedicated by the Lieutenant-Governor of Manitoba at the 1987 annual meeting.&lt;br /&gt;
  &lt;br /&gt;
The wording of the dedication of the plaque was:&lt;br /&gt;
 &lt;br /&gt;
“On the occasion of the Centennial of The Engineering Profession in Canada and to recognize the Profession’s service to the citizens of the Province and its contribution to the development of the Province, the association of Professional Engineers of Manitoba has chosen to honour the engineering undertaking which exemplifies that contribution over the past 100 years.&lt;br /&gt;
 &lt;br /&gt;
By Reducing damage and the threat to lives and property from recurring floods in many parts of the Province, the Manitoba Flood Control and Protection System has greatly contributed to the peace of mind and the social and economic well-being of a vast number of the citizens of our Province. The works, the operational procedures and the emergency response mechanisms which comprise the system are deemed to epitomize the obligation of Professional Engineers to ensure the safety and comfort of people in all engineering undertakings.&lt;br /&gt;
 &lt;br /&gt;
October 19, 1987 &lt;br /&gt;
 &lt;br /&gt;
Dedicated by&lt;br /&gt;
The Honourable George Johnson,&lt;br /&gt;
Lieutenant Governor of Manitoba”&lt;br /&gt;
 &lt;br /&gt;
Other wording on the plaque describes features of the system as it was in 1987. It included; the Red River Floodway, Shellmouth Dam, Assiniboine [Portage] Diversion, Seine River Diversion, Fairford Control Works, Diking Systems, and Flood Forecasting. The wording can be accessed at the Heritage Committee section of the APEGM website www.apegm.mb.ca/Heritage/index.html. A copy of the 1920 paper by D.L. Mclean is also available in that section. &lt;br /&gt;
 &lt;br /&gt;
== Since 1987 ==&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
The descriptions on the 1987 plaque provided an overview of the system at that time. Most of them have since become familiar to Manitobans. Since then we have experienced the 1997 “Flood of the Century” and are aware that the Red River Floodway has been expanded. In 1987 eight communities in the Red River Valley were protected by ring dikes. After the 1997 flood twelve additional communities were protected and 1 800 homes, businesses and farms in the valley were either raised onto pads or protected with individual ring dikes. The effectiveness of the flood control works in the Red River Valley was evident during the spring of 2011 when very little flood damage occurred even though the flood was larger than the historic 1950 flood.&lt;br /&gt;
 &lt;br /&gt;
But there have been other projects outside of the Red River Valley that have not garnered as much attention. The first two below were mentioned in the 1987 plaque:&lt;br /&gt;
 &lt;br /&gt;
Seine River Diversion&lt;br /&gt;
The first major flood water diversion constructed in Manitoba, the SeineRiver Diversion, diverts excess Seine River flows of up to 4 270 cfs from a point upstream of Ste. Anne to the Red River near St. Adolphe. The diversion was constructed in 1962 at a cost of $1.8 million to provide flood control along the Seine River through and below Ste. Anne.&lt;br /&gt;
 &lt;br /&gt;
Fairford Control Works&lt;br /&gt;
Located at the outlet of Lake Manitoba on the Fairford River, the Fairford Control Works together with upstream and downstream channel improvements were constructed in 1961 to control Lake Manitoba levels within a much narrower range than that which occurred historically. The control structure doubles as the PTH #6 highway bridge. Stop logs are installed or removed to control the flow.&lt;br /&gt;
 &lt;br /&gt;
 &lt;br /&gt;
Carman Diversion&lt;br /&gt;
A diversion of the Boyne River around the Town of Carman was completed in 1991. Before the diversion was constructed Carman experienced flooding in 1893,1923, 1970, 1974, and 1979. The 1979 flood caused damages of over $3 million. The$6 million diversion diverts flood water from the Boyne River west of Carman through a 9.8 km channel that exits into the Norquay Channel. It has been very effective in flood prevention.&lt;br /&gt;
 &lt;br /&gt;
Ste. Rose du Lac&lt;br /&gt;
Following a 1975 flood from the Turtle River in Ste. Rose du Lac a diking system was constructed through the town. A flood in 1986 overtopped these dikes.The dikes have since been upgraded to provide protection against a one in 100 year flood event. The dikes were raised and sandbagging was necessary to protect Ste. Rose du Lac in 2011&lt;br /&gt;
 &lt;br /&gt;
The Pas Area&lt;br /&gt;
A series of dikes along the Saskatchewan River and Carrot River in the vicinity of The Pas has been constructed to protect agricultural and residential areas. The Carrot River is located south of the Saskatchewan River flowing easterly. It is generally about 10 km south of the Saskatchewan and joins that river just before it reaches The Pas. The Carrot River has approximately 39 km of dikes. The Salt Channel which protects the western boundary of the Carrot valley area has 34 km of dikes. Together with the Pasquia River dikes they protect 57 000 hectares of farm and residential land. &lt;br /&gt;
 &lt;br /&gt;
Rock Lake, Pelican Lake Controls &lt;br /&gt;
Completed in 1991, the Pelican Lake Controls include a diversion channel from the Pembina River to Pelican Lake and control structures. The diversion channel brings water to the lake to raise low lake levels and drains water from the lake to prevent high water levels, providing improved regulation of water levels. At Rock Lake a weir and an outlet channel to the Pembina River have been built, along with dikes on the west side of the lake to protect farmland.&lt;br /&gt;
 &lt;br /&gt;
Assiniboine River Diking Systems&lt;br /&gt;
Downstream of the Shellmouth Dam (the reservoir formed by the dam, the Lake of the Prairies, extends into Saskatchewan) the Assiniboine River meanders in the bottom of the deep river valley that was formed by the melting glaciers approximately 10 000 years ago. The valley is subject to flooding when the Assiniboine River spills over its banks as happened in 1976 and in 1995. The Town of St. Lazare, 60 km downstream of the dam, has been protected by a ringdike. &lt;br /&gt;
 &lt;br /&gt;
Further downstream at Brandon the Assiniboine flows in the deep valley on the north side of the City. While most of the City is located on the higher elevations above the valley floodplain, industrial, commercial, residential and recreational properties and facilities exist in the floodplain. Most notable is the Brandon Flats area located on the south side of the river between First Street and 26th Street. Prior to 2011, flood prone properties were protected to varying degrees, but generally not against a 100 year flood. &lt;br /&gt;
 &lt;br /&gt;
East of Brandon the Assiniboine River breaks out of the glacial valley into the Assiniboine River delta east of the Manitoba escarpment and enters the flat remnants of Glacial Lake Agassiz. East of the Portage Diversion and the City of Portage la Prairie to just east of Baie St. Paul (near St. Francois Xavier) there are 67 km of diked channel for a total of 134 km of dikes. The dikes were first constructed in 1912. They were reinforced in 1950 and again following the 1997 flood. They protect farmland, farms, and rural residences aswell as the communities of Elie, La Salle, Sanford and Starbuck.&lt;br /&gt;
 &lt;br /&gt;
Souris River&lt;br /&gt;
The Souris River begins in Saskatchewan, runs south into North Dakota, and returns to Manitoba, joining the Assiniboine River near Treesbank. In North Dakota the River passes through the City of Minot and many smaller centres. In Manitoba the Souris passes through the towns of Melita, Souris, and Wawanesa. Those Manitoba communities had dikes along the Souris before 2011.&lt;br /&gt;
 &lt;br /&gt;
 &lt;br /&gt;
== The “Perfect Storm” of 2011 == &lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
Despite the pre and post 1987 measures, with the events of 2011 we have come to realize that Manitoba is vulnerable to the impact of major flood events. While the system performed well for the Red River Valley, unusually high runoff on the Assiniboine and Souris Rivers, exceptional rainfall in Saskatchewan, and high water levels in Lake Manitoba and Lake St. Martin converged to require emergency measures and caused devastation – particularly on Lake Manitoba and Lake St. Martin.&lt;br /&gt;
 &lt;br /&gt;
At Brandon, to address the predictions made in February, the City raised approximately 5 km of dike by about 0.6m, thought to be 0.3m above the predictions for the 2011 spring flood. But it far exceeded all expectations and required an enormous additional diking effort including the assistance of the Canadian Army. The Assiniboine had several crests; the largest had a flow of 37,100 cfs representing a 300 year flood. While the dikes protected the low lying areas, the risk of a breach required evacuation of the Flats area for several weeks and traffic was disrupted on the major access roads to the city.&lt;br /&gt;
 &lt;br /&gt;
East of Portage la Prairie where the design capacity was a flow of 18 500 cfs, the dikes were at considerable risk and the Canadian Army was called upon to assist with strengthening and inspection. Because of the softened condition of dikes due to persistent wet weather some sections were reinforced with sandbags delivered by helicopter. Because the flow in the Assiniboine at Portage la Prairie was 52 400 cfs (34 500 beyond the downstream capacity) the Portage Diversion was upgraded to divert a peak of 34,000 cfs to Lake Manitoba, much beyond its 25 000 cfs design capacity. The emergency over capacity flow required evacuations along the diversion for safety.&lt;br /&gt;
 &lt;br /&gt;
As another emergency measure to prevent overtopping of the dikes a breach in the south dike was made at the Hoop and Holler bend to release water toward the LaSalle River.While only approximately 400 cfs were released, the deliberate release and flooding of lands south of the river illustrate the grave concern along the Assiniboine between Portage la Prairie and Baie St. Paul.&lt;br /&gt;
 &lt;br /&gt;
There were three crests on the Souris River, the first on April 9, 2011. Each time dikes were raised and reinforced. The last crest was caused by a major rainstorm in Saskatchewan near the middle of June. The flood devastated the City of Minot where 11,000 people were displaced and 4 200 residences were inundated, many to roof level.&lt;br /&gt;
 &lt;br /&gt;
In Manitoba, dikes were raised by as much as two metres above the already raised and reinforced levels and once again the Army was called upon at the last minute to assist. The peak flow exceeded 30 000 cfs, in the range of a 300 year flood. The temporary dikes held and averted a disaster similar to what occurred in Minot. Extensive damage was caused to roads, bridges, and other infrastructure. Most notable was the loss of the famous Souris swinging bridge.As the crest approached it was feared the bridge would be ripped from its moorings which could have damaged the dikes on each side of the river. One endof the bridge was severed as a precaution.&lt;br /&gt;
 &lt;br /&gt;
The diversion of water to Lake Manitoba, along with high flows in the Waterhen River from Lake Winnipegosis and in the Whitemud River has caused an enormous flood all around Lake Manitoba and Lake St Martin. At this time, July 21, 2011,Lake Manitoba is above 817 feet above sea level. Many stakeholders around Lake Manitoba, including farmers, ranchers and cottagers feel the ideal level is 810.5 – 812.5 feet. That range was adopted by the Lake Manitoba Regulation Advisory Committee in 2003. That leaves the July 2011 level at 5.5 - 7 feet above optimum.&lt;br /&gt;
 &lt;br /&gt;
To compound the situation a fierce wind storm from the northwest on May 31, 2011 caused widespread destruction even as protective measures were being undertaken prior to the rise in lake level. Winds were 75 kilometres per hour with gusts to 100 kilometres per hour. The destruction to the farms and ranches and the cottage communities from Twin Lakes in the south to Laurentia Beach and Johnson Beach in the north was devastating and still has not been fully assessed as access for roughly two thirds of the cottages, including permanent residents,was only restored in mid July. Delta Beach at the south end of the lake was devastated. &lt;br /&gt;
 &lt;br /&gt;
Diking against the high water and potential wind storms continues for the many homes and communities all around the lake. While three weeks of dry and hot weather in July have assisted and Lake Manitoba levels have stabilized for several days,the predicted peak of 817.5 has not yet been assured. The flood resulting from high lake levels and wind has been described as a once in 2000 year event.&lt;br /&gt;
 &lt;br /&gt;
Lake Manitoba drains through the Fairford Control Structure described above, into Lake St. Martin and the Dauphin River to Lake Winnipeg. With Lake Manitoba at high levels the flow through the Fairford Control Structure is at 20 800 cfs compared to a normal flood flow of 6 000 cfs in summer and 3 500 cfs in winter. Lake St. Martin and the Dauphin River have also been flooded. Four First Nation Communities; Fairford First Nation; Little Saskatchewan First Nation; Lake St.Martin First Nation; and Dauphin River First Nation have been evacuated for up to three months with no end in sight. Lake St. Martin is at elevation 806, three feet above the historic 1955 peak of 803 and 6-8 feet above the desirable range of 798-800.&lt;br /&gt;
 &lt;br /&gt;
The Lakes are predicted to remain at flood levels well into winter and approximately 2000 residents and cottagers are not permitted into most areas except for day visits to retrieve belongings. Thousands of cattle have been moved to higher ground or out of the area for feed as the hay crops are flooded.&lt;br /&gt;
 &lt;br /&gt;
== Moving Forward ==&lt;br /&gt;
 &lt;br /&gt;
The experience of the many necessary emergency actions and the devastation from the outcomes of the 2011 flooding in Manitoba tells us that the job of effective flood control and protection is not yet finished. After the 1950 flood the focus of flood protection was on protecting Winnipeg from future floods. After the 1997 Red River flood the focus was on increasing flood protection for Winnipeg and the whole Red River Valley. Both of these efforts have proved very successful. With the 2011 flood the focus has turned towards increasing flood protection along the Assiniboine and Souris Rivers and on Lakes Manitoba and St. Martin. &lt;br /&gt;
 &lt;br /&gt;
A major study on an up to 9 000 cfs channel parallel to the Dauphin River from Lake St.Martin to Lake Winnipeg has been completed and released in late July.  It includes a seemingly optimistic construction completion date of November 1, 2011. The 8 km long channel from Lake St. Martin to Big Buffalo Lake, from which the water would flow through existing streams and return to the Dauphin River near Lake Winnipeg is estimated to cost $100 million. The channel would go through very wet bog and the location is only accessible for equipment by crossing Lake St. Martin by barge. If emergency approval and funding from the federal government is obtained, environmental impact studies would have to be made during construction to meet the November date. Opposition has already been expressed by the Dauphin River First Nation and the community of Dauphin River over increased flows and the effect of river levels on access, the Dauphin River, ice conditions and the fishery.&lt;br /&gt;
 &lt;br /&gt;
The Fairford Control structure is operating at maximum capacity and the new channel will only help to reduce water levels by making it possible to operate the control structure at a higher capacity during the winter when the flow normally has to be reduced to prevent flooding along PR 513 and at Dauphin River due to ice conditions in the Dauphin River. It is predicted the lake could be drawn down to elevation 813.1 by spring, rising to near 814 with spring runoff, still several feet above optimum with possible use of the Portage Diversion looming.&lt;br /&gt;
 &lt;br /&gt;
A second phase would see a new bypass channel from Lake Manitoba to Lake St. Martin estimated to cost $60 million. The channel would increase the flow capacity from Lake Manitoba to Lake St. Martin. A third phase is to increase the capacity of the bypass channel. These necessary works are only in the concept stage. Providing effective controlled drainage of the Lake Manitoba system, and by extension the Lake Winnipeg and Nelson River system, will be necessary if Manitobans are to preserve and maximize the asset of our water supply. &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
One of the earlier engineering papers on the mitigation of flooding was authored by D.L. McLean, who had previously been a design engineer on the Greater Winnipeg Water District aqueduct. It was published in 1920. Since then engineers have continued to be instrumental in implementing the Province’s system of flood control and protection. That contribution has been acknowledged throughout the system’s development, and was recognized by the association (APEGM at the time) during the Centennial of Engineering in Canada in 1987. The physical reminder is a plaque dedicated by the Lieutenant-Governor of Manitoba at the 1987 annual meeting.&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
 &lt;br /&gt;
The wording of the dedication of the plaque was:&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
“On the occasion of the Centennial of The Engineering Profession in Canada and to recognize the Profession’s service to the citizens of the Province and its contribution to the development of the Province, the association of Professional Engineers of Manitoba has chosen to honour the engineering undertaking which exemplifies that contribution over the past 100 years.&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
By Reducing damage and the threat to lives and property from recurring floods in many parts of the Province, the Manitoba Flood Control and Protection System has greatly contributed to the peace of mind and the social and economic well-being of a vast number of the citizens of our Province. The works, the operational procedures and the emergency response mechanisms which comprise the system are deemed to epitomize the obligation of Professional Engineers to ensure the safety and comfort of people in all engineering undertakings.&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
October 19, 1987&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
Dedicated by&lt;br /&gt;
The Honourable George Johnson,&lt;br /&gt;
Lieutenant Governor of Manitoba”&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
Other wording on the plaque describes features of the system as it was in 1987. It included; the Red River Floodway, Shellmouth Dam, Assiniboine [Portage] Diversion, Seine River Diversion, Fairford Control Works, Diking Systems, and Flood Forecasting. The wording can be accessed at the Heritage Committee section of the APEGM website www.apegm.mb.ca/Heritage/index.html. A copy of the 1920 paper by D.L. Mclean is also available in that section.&lt;/div&gt;</summary>
		<author><name>Cnowell</name></author>
	</entry>
	<entry>
		<id>https://enggeomb-heritage.a2hosted.com/index.php?title=Flood_Controls_and_Protection&amp;diff=432</id>
		<title>Flood Controls and Protection</title>
		<link rel="alternate" type="text/html" href="https://enggeomb-heritage.a2hosted.com/index.php?title=Flood_Controls_and_Protection&amp;diff=432"/>
		<updated>2013-09-09T23:44:47Z</updated>

		<summary type="html">&lt;p&gt;Cnowell: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;br /&gt;
As a means of celebrating the role of engineering and geosciences for the 90th year of APEGM’s history, the Heritage&lt;br /&gt;
Committee began a series of articles in 2010, under the general theme of&lt;br /&gt;
“Liquid Assets” that link water to the economic and social development of the&lt;br /&gt;
province. This is a follow-up article in light of the spring and summer of&lt;br /&gt;
2011, when the liability side of water’s balance sheet affected the lives of&lt;br /&gt;
Manitobans and the contribution of engineering and geoscience to the flood&lt;br /&gt;
control and protection system have been both recognized and questioned. From&lt;br /&gt;
the experience of 2011 Manitobans, and Winnipeggers when they gaze beyond the&lt;br /&gt;
perimeter highway, now have an enhanced awareness of the realities of living in&lt;br /&gt;
the bottom of a former glacial lake.&lt;br /&gt;
 &lt;br /&gt;
Awareness of vulnerability to flooding hasbeen with Manitobans since before the Province’s entry into confederation. The spring of 1826 brought the greatest flood toinundate the valley and Red River Settlement, estimated by engineers on thebasis of journals and eye-witness recollection to have risen to an elevation of764.87 ft. above sea level. The 1852flood crested two feet lower than in 1826, but it caused more damage in thesettlement due to urban growth and rapid rise due to a number of large icejams. In May of 1950 the RedRiver crested at 757.87 ft. at James Avenue, creating a lake seven miles wideat Winnipeg's southern limits. &lt;br /&gt;
 &lt;br /&gt;
One of the earlier engineering papers onthe mitigation of flooding was authored by D.L. McLean, who had previously beena design engineer on the Greater Winnipeg Water District aqueduct. It was publishedin 1920. Since then engineers have continued to be instrumental in implementingthe Province’s system of flood control and protection. That contribution hasbeen acknowledged throughout the system’s development, and was recognized bythe association (APEM at the time) during the Centennial of Engineering inCanada in 1987. The physical reminder is a plaque dedicated by theLieutenant-Governor of Manitoba at the 1987 annual meeting.&lt;br /&gt;
  &lt;br /&gt;
The wording of the dedication of the plaquewas:&lt;br /&gt;
 &lt;br /&gt;
“On the occasion of the Centennial of The Engineering Profession inCanada and to recognize the Profession’s service to the citizens of theProvince and its contribution to the development of the Province, theassociation of Professional Engineers of Manitoba has chosen to honor theengineering undertaking which exemplifies that contribution over the past 100years.&lt;br /&gt;
 &lt;br /&gt;
By Reducing damage and the threat to lives and property fromrecurring floods in many parts of the Province, the Manitoba Flood Control andProtection System has greatly contributed to the peace of mind and the socialand economic well-being of a vast number of the citizens of our Province. Theworks, the operational procedures and the emergency response mechanisms whichcomprise the system are deemed to epitomize the obligation of ProfessionalEngineers to ensure the safety and comfort of people in all engineeringundertakings.&lt;br /&gt;
 &lt;br /&gt;
October 19, 1987&lt;br /&gt;
 &lt;br /&gt;
Dedicated by&lt;br /&gt;
The Honourable GeorgeJohnson,&lt;br /&gt;
Lieutenant Governor ofManitoba”&lt;br /&gt;
 &lt;br /&gt;
Other wording on the plaque describesfeatures of the system as it was in 1987. It included; the Red River Floodway,Shellmouth Dam, Assiniboine [Portage] Diversion, Seine River Diversion,Fairford Control Works, Diking Systems, and Flood Forecasting. The wording canbe accessed at the Heritage Committee section of the APEGM website www.apegm.mb.ca/Heritage/index.html. A copy of the1920 paper by D.L. Mclean is also available in that section. &lt;br /&gt;
 &lt;br /&gt;
== Since 1987 ==&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
The descriptions on the 1987 plaque providedan overview of the system at that time. Most of them have since become familiarto Manitobans. Since then we haveexperienced the 1997 “Flood of the Century” and are aware that the Red RiverFloodway has been expanded. In 1987 eight communities in the Red River Valleywere protected by ring dikes. After the 1997 flood twelve additionalcommunities were protected and 1800 homes, businesses and farms in the valleywere either raised onto pads or protected with individual ring dikes. Theeffectiveness of the flood control works in the Red River Valley was evidentduring the spring of 2011 when very little flood damage occurred even thoughthe flood was larger than the historic 1950 flood.&lt;br /&gt;
 &lt;br /&gt;
But therehave been other projects outside of the Red River Valley that have not garneredas much attention. The first two below were mentioned in the 1987 plaque:&lt;br /&gt;
 &lt;br /&gt;
Seine River Diversion&lt;br /&gt;
The first major floodwater diversion constructed in Manitoba, the SeineRiver Diversion, diverts excess Seine River flows of up to 4270 cfs from apoint upstream of Ste. Anne to the Red River near St. Adolphe. The diversionwas constructed in 1962 at a cost of $1.8 million to provide flood controlalong the Seine River through and below Ste. Anne.&lt;br /&gt;
 &lt;br /&gt;
Fairford Control Works&lt;br /&gt;
Located at the outlet of Lake Manitoba on the Fairford River, theFairford Control Works together with upstream and downstream channelimprovements were constructed in 1961 to control Lake Manitoba levels within amuch narrower range than that which occurred historically. The controlstructure doubles as the PTH #6 highway bridge. Stop logs are installed orremoved to control the flow.&lt;br /&gt;
 &lt;br /&gt;
 &lt;br /&gt;
Carman Diversion&lt;br /&gt;
A diversion of the Boyne River around the Town of Carman was completed in1991. Before the diversion was constructed Carman experienced flooding in 1893,1923, 1970, 1974, and 1979. The 1979 flood caused damages of over $3 million. The$6 million diversion diverts flood water from the Boyne River west of Carmanthrough a 9.8 km channel that exits into the Norquay Channel. It has been veryeffective in flood prevention.&lt;br /&gt;
 &lt;br /&gt;
Ste. Rose du Lac&lt;br /&gt;
Following a 1975 flood from the Turtle River in Ste. Rose du Lac a dikingsystem was constructed through the town. A flood in 1986 overtopped these dikes.The dikes have since been upgraded to provide protection against a one in 100year flood event. The dikes were raised and sandbagging was necessary toprotect Ste. Rose du Lac in 2011&lt;br /&gt;
 &lt;br /&gt;
The Pas Area&lt;br /&gt;
A series of dikes along the Saskatchewan River and Carrot River in thevicinity of The Pas has been constructed to protect agricultural andresidential areas. The Carrot River is located south of the Saskatchewan Riverflowing easterly. It is generally about 10 km south of the Saskatchewan andjoins that river just before it reaches The Pas. The Carrot River hasapproximately 39 km of dikes. The Salt Channel which protects the western boundaryof the Carrot valley area has 34 km of dikes. Together with the Pasquia Riverdikes they protect 57,000 hectares of farm and residential land. &lt;br /&gt;
 &lt;br /&gt;
Rock Lake, Pelican Lake Controls &lt;br /&gt;
Completed in 1991, the Pelican Lake Controls include a diversion channelfrom the Pembina River to Pelican Lake and control structures. The diversionchannel brings water to the lake to raise low lake levels and drains water fromthe lake to prevent high water levels, providing improved regulation of waterlevels. At Rock Lake a weir and an outlet channel to the Pembina River havebeen built, along with dikes on the west side of the lake to protect farmland.&lt;br /&gt;
 &lt;br /&gt;
Assiniboine River Diking Systems&lt;br /&gt;
Downstream of the Shellmouth Dam (the reservoir formed by the dam, theLake of the Prairies, extends into Saskatchewan) the Assiniboine River meandersin the bottom of the deep river valley that was formed by the melting glaciersapproximately 10,000 years ago. The valley is subject to flooding when theAssiniboine River spills over its banks as happened in 1976 and in 1995. TheTown of St. Lazare, 60 km downstream of the dam, has been protected by a ringdike. &lt;br /&gt;
 &lt;br /&gt;
Further downstream at Brandon the Assiniboine flows in the deep valley onthe north side of the City. While most of the City is located on the higherelevations above the valley floodplain, industrial, commercial, residential andrecreational properties and facilities exist in the floodplain. Most notable isthe Brandon Flats area located on the south side of the river between FirstStreet and 26th Street. Prior to 2011, flood prone properties wereprotected to varying degrees, but generally not against a 100 year flood. &lt;br /&gt;
 &lt;br /&gt;
East of Brandon the Assiniboine River breaks out of the glacial valleyinto the Assiniboine River delta east of the Manitoba escarpment and enters theflat remnants of Glacial Lake Agassiz. East of the Portage Diversion and theCity of Portage la Prairie to just east of Baie St. Paul (near St. FrancoisXavier) there are 67 km of diked channel for a total of 134 km of dikes. The dikeswere first constructed in 1912. They were reinforced in 1950 and againfollowing the 1997 flood. They protect farmland, farms, and rural residences aswell as the communities of Elie, La Salle, Sanford and Starbuck.&lt;br /&gt;
 &lt;br /&gt;
Souris River&lt;br /&gt;
The Souris River begins in Saskatchewan, runs south into North Dakota, andreturns to Manitoba, joining the Assiniboine River near Treesbank. In NorthDakota the River passes through the City of Minot and many smaller centers. InManitoba the Souris passes through the towns of Melita, Souris, and Wawanesa. ThoseManitoba communities had dikes along the Souris before 2011.&lt;br /&gt;
 &lt;br /&gt;
 &lt;br /&gt;
== The “Perfect Storm” of 2011 == &lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
Despitethe pre and post 1987 measures, with the events of 2011 we have come to realizethat Manitoba is vulnerable to the impact of major flood events. While thesystem performed well for the Red River Valley, unusually high runoff on theAssiniboine and Souris Rivers, exceptional rainfall in Saskatchewan, and highwater levels in Lake Manitoba and Lake St. Martin converged to requireemergency measures and caused devastation – particularly on Lake Manitoba andLake St. Martin.&lt;br /&gt;
 &lt;br /&gt;
At Brandon, to address the predictions made in February, the City raised approximately5 km of dike by about 0.6 m, thought to be 0.3 m above the predictions for the2011 spring flood. But it far exceeded all expectations and required anenormous additional diking effort including the assistance of the CanadianArmy. The Assiniboine had several crests; the largest had a flow of 37,100 cfs representinga 300 year flood. While the dikes protected the low lying areas, the risk of abreach required evacuation of the Flats area for several weeks and traffic wasdisrupted on the major access roads to the city.&lt;br /&gt;
 &lt;br /&gt;
East of Portagela Prairie where the design capacity was a flow of 18,500 cfs, the dikes wereat considerable risk and the Canadian Army was called upon to assist withstrengthening and inspection. Because of the softened condition of dikes due topersistent wet weather some sections were reinforced with sandbags delivered byhelicopter. Because the flow in the Assiniboine at Portage la Prairie was 52,400cfs (34,500 beyond the downstream capacity) the Portage Diversion was upgraded todivert a peak of 34,000 cfs to Lake Manitoba, much beyond its 25,000 cfs designcapacity. The emergency over capacity flow required evacuations along thediversion for safety.&lt;br /&gt;
 &lt;br /&gt;
As anotheremergency measure to prevent overtopping of the dikes a breach in the south dikewas made at the Hoop and Holler bend to release water toward the LaSalle River.While only approximately 400 cfs were released, the deliberate release andflooding of lands south of the river illustrate the grave concern along theAssiniboine between Portage la Prairie and Baie St. Paul.&lt;br /&gt;
 &lt;br /&gt;
Therewere three crests on the Souris River, the first on April 9, 2011. Each timedikes were raised and reinforced. The last crest was caused by a majorrainstorm in Saskatchewan near the middle of June. The flood devastated theCity of Minot where 11,000 people were displaced and 4,200 residences wereinundated, many to roof level.&lt;br /&gt;
 &lt;br /&gt;
InManitoba, dikes were raised by as much as two metres above the already raisedand reinforced levels and once again the Army was called upon at the lastminute to assist. The peak flow exceeded 30,000 cfs, in the range of a 300 yearflood. The temporary dikes held and averted a disaster similar to what occurredin Minot. Extensive damage was caused to roads, bridges, and otherinfrastructure. Most notable was the loss of the famous Souris swinging bridge.As the crest approached it was feared the bridge would be ripped from itsmoorings which could have damaged the dikes on each side of the river. One endof the bridge was severed as a precaution.&lt;br /&gt;
 &lt;br /&gt;
Thediversion of water to Lake Manitoba, along with high flows in the WaterhenRiver from Lake Winnipegosis and in the Whitemud River has caused an enormousflood all around Lake Manitoba and Lake St Martin. At this time, July 21, 2011,Lake Manitoba is above 817 feet above sea level. Many stakeholders around LakeManitoba, including farmers, ranchers and cottagers feel the ideal level is810.5 – 812.5 feet. That range was adopted by the Lake Manitoba RegulationAdvisory Committee in 2003. That leaves the July 2011 level at 5.5 - 7 feetabove optimum.&lt;br /&gt;
 &lt;br /&gt;
Tocompound the situation a fierce windstorm from the northwest on May 31, 2011caused widespread destruction even as protective measures were being undertakenprior to the rise in lake level. Winds were 75 kilometers per hour with guststo 100 kilometres per hour. The destruction to the farms and ranches and thecottage communities from Twin Lakes in the south to Laurentia Beach and JohnsonBeach in the north was devastating and still has not been fully assessed asaccess for roughly two thirds of the cottages, including permanent residents,was only restored in mid July. Delta Beach at the south end of the lake wasdevastated. &lt;br /&gt;
 &lt;br /&gt;
Dikingagainst the high water and potential windstorms continues for the many homesand communities all around the lake. While three weeks of dry and hot weather inJuly have assisted and Lake Manitoba levels have stabilized for several days,the predicted peak of 817.5 has not yet been assured. The flood resulting from highlake levels and wind has been described as a once in 2000 year event.&lt;br /&gt;
 &lt;br /&gt;
LakeManitoba drains through the Fairford Control Structure described above, intoLake St. Martin and the Dauphin River to Lake Winnipeg. With Lake Manitoba athigh levels the flow through the Fairford Control Structure is at 20,800 cfscompared to a normal flood flow of 6000 cfs in summer and 3500 cfs in winter. LakeSt. Martin and the Dauphin River have also been flooded. Four First NationCommunities; Fairford First Nation; Little Saskatchewan First Nation; Lake St.Martin First Nation; and Dauphin River First Nation have been evacuated for upto three months with no end in sight. Lake St. Martin is at elevation 806,three feet above the historic 1955 peak of 803 and 6-8 feet above the desirablerange of 798-800.&lt;br /&gt;
 &lt;br /&gt;
The Lakesare predicted to remain at flood levels well into winter and approximately 2000residents and cottagers are not permitted into most areas except for day visitsto retrieve belongings. Thousands of cattle have been moved to higher ground orout of the area for feed as the hay crops are flooded.&lt;br /&gt;
 &lt;br /&gt;
== Moving Forward ==&lt;br /&gt;
 &lt;br /&gt;
Theexperience of the many necessary emergency actions and the devastation from theoutcomes of the 2011 flooding in Manitoba tells us that the job of effectiveflood control and protection is not yet finished. After the 1950 flood thefocus of flood protection was on protecting Winnipeg from future floods. Afterthe 1997 Red River flood the focus was on increasing flood protection forWinnipeg and the whole Red River Valley. Both of these efforts have proved verysuccessful. With the 2011 flood the focus has turned towards increasing floodprotection along the Assiniboine and Souris Rivers and on Lakes Manitoba andSt. Martin. &lt;br /&gt;
 &lt;br /&gt;
A majorstudy on an up to 9000 cfs channel parallel to the Dauphin River from Lake St.Martin to Lake Winnipeg has been completed and released in late July.  It includes a seemingly optimisticconstruction completion date of November 1, 2011. The 8 km long channel fromLake St. Martin to Big Buffalo Lake, from which the water would flow throughexisting streams and return to the Dauphin River near Lake Winnipeg isestimated to cost $100 million. The channel would go through very wet bog andthe location is only accessible for equipment by crossing Lake St. Martin bybarge. If emergency approval and funding from the federal government isobtained, environmental impact studies would have to be made duringconstruction to meet the November date. Opposition has already been expressedby the Dauphin River First Nation and the community of Dauphin River over increasedflows and the effect of river levels on access, the Dauphin River, iceconditions and the fishery.&lt;br /&gt;
 &lt;br /&gt;
TheFairford Control structure is operating at maximum capacity and the new channelwill only help to reduce water levels by making it possible to operate thecontrol structure at a higher capacity during the winter when the flow normallyhas to be reduced to prevent flooding along PR 513 and at Dauphin River due toice conditions in the Dauphin River. It is predicted the lake could be drawndown to elevation 813.1 by spring, rising to near 814 with spring runoff, stillseveral feet above optimum with possible use of the Portage Diversion looming.&lt;br /&gt;
 &lt;br /&gt;
A secondphase would see a new bypass channel from Lake Manitoba to Lake St. Martinestimated to cost $60 million. The channel would increase the flow capacityfrom Lake Manitoba to Lake St. Martin. A third phase is to increase thecapacity of the bypass channel. These necessary works are only in the conceptstage. Providing effective controlled drainage of the Lake Manitoba system, andby extension the Lake Winnipeg and Nelson River system, will be necessary ifManitobans are to preserve and maximize the asset of our water supply. &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
One of the earlier engineering papers onthe mitigation of flooding was authored by D.L. McLean, who had previously beena design engineer on the Greater Winnipeg Water District aqueduct. It was publishedin 1920. Since then engineers have continued to be instrumental in implementingthe Province’s system of flood control and protection. That contribution hasbeen acknowledged throughout the system’s development, and was recognized bythe association (APEM at the time) during the Centennial of Engineering inCanada in 1987. The physical reminder is a plaque dedicated by theLieutenant-Governor of Manitoba at the 1987 annual meeting.&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
 &lt;br /&gt;
The wording of the dedication of the plaquewas:&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
“On the occasion of the Centennial of The Engineering Profession inCanada and to recognize the Profession’s service to the citizens of theProvince and its contribution to the development of the Province, theassociation of Professional Engineers of Manitoba has chosen to honor theengineering undertaking which exemplifies that contribution over the past 100years.&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
By Reducing damage and the threat to lives and property fromrecurring floods in many parts of the Province, the Manitoba Flood Control andProtection System has greatly contributed to the peace of mind and the socialand economic well-being of a vast number of the citizens of our Province. Theworks, the operational procedures and the emergency response mechanisms whichcomprise the system are deemed to epitomize the obligation of ProfessionalEngineers to ensure the safety and comfort of people in all engineeringundertakings.&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
October 19, 1987&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
Dedicated by&lt;br /&gt;
The Honourable GeorgeJohnson,&lt;br /&gt;
Lieutenant Governor of Manitoba”&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
Other wording on the plaque describesfeatures of the system as it was in 1987. It included; the Red River Floodway,Shellmouth Dam, Assiniboine [Portage] Diversion, Seine River Diversion,Fairford Control Works, Diking Systems, and Flood Forecasting. The wording canbe accessed at the Heritage Committee section of the APEGM website www.apegm.mb.ca/Heritage/index.html. A copy of the1920 paper by D.L. Mclean is also available in that section.&lt;/div&gt;</summary>
		<author><name>Cnowell</name></author>
	</entry>
	<entry>
		<id>https://enggeomb-heritage.a2hosted.com/index.php?title=Winnipeg_Water_Supplies&amp;diff=431</id>
		<title>Winnipeg Water Supplies</title>
		<link rel="alternate" type="text/html" href="https://enggeomb-heritage.a2hosted.com/index.php?title=Winnipeg_Water_Supplies&amp;diff=431"/>
		<updated>2013-09-09T23:43:40Z</updated>

		<summary type="html">&lt;p&gt;Cnowell: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Introduction ==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
As a means of celebrating the role of engineering and geoscience over the 90 year history of APEGM, the Heritage Committee is writing a series of articles that link water to the economic and social development of the province. The first article ‘Liquid Assets’ was published in the March 2010 issue of the Keystone and described the relationship between commerce and water before the Association was formed. This article focuses on water as it relates to health and welfare within the City of Winnipeg. Both articles show the connection between key engineering works with these important aspects of our lives. &lt;br /&gt;
It goes without saying that a safe clean and abundant water supply is essential to public health and the growth of any city. The development of the City of Winnipeg’s water supply is an interesting success story that continues to sparkle 90 years after it was commissioned. The slow and meandering beginning was ultimately championed by a civil engineer turned politician. Highlights of that story are chronicled below. A subsequent article will describe some of the engineering firsts for the water supplies in other areas of the Province.&lt;br /&gt;
&lt;br /&gt;
== Winnipeg's Water Supply History == &lt;br /&gt;
'''The Early Years to 1913'''&lt;br /&gt;
&lt;br /&gt;
In the late 1800’s and early 1900’s, Winnipeg’s water system was not adequate. Initially, “watermen” using oxcarts hauled untreated water from the Red and Assiniboine Rivers and delivered it by barrel. &lt;br /&gt;
&lt;br /&gt;
The first water system began in 1882 when a private company, Winnipeg Water Works Co., drew water from the Assiniboine River and distributed the water by pipes to homes and businesses in the city core. The Company’s intake and pumping facilities were on the north bank of the Assiniboine River near the present day Maryland bridge. The water was inferior quality and the supply was not adequate. &lt;br /&gt;
&lt;br /&gt;
The water was bad everywhere in Winnipeg. It smelled! It was foul-tasting, discoloured and left rusty stains and dangerous to public health. Large sections of the city and the surrounding municipalities had no clean running water. In addition, fire protection for the mainly wood buildings was inadequate resulting in unacceptable loss of life and property in addition to high insurance costs. Winnipeg could not sustain development without an improved water supply.&lt;br /&gt;
&lt;br /&gt;
In 1899, the City of Winnipeg purchased the water supply for $237,000 - nearly $4.7 million in today's dollars and created a public water utility. The city began to use artesian wells rather than river water. Artesian Well No. 1 began flowing into the system in 1900. However, a serious fire in 1904 forced the City to pump Assiniboine River water into the mains, contaminating the system and ultimately resulting in the 1904 typhoid epidemic.&lt;br /&gt;
&lt;br /&gt;
In 1904, Winnipeg had the highest rate of typhoid deaths on the continent. Between 1904 and 1906, over 4,000 Winnipeggers contracted typhoid, and 377 of them died. &lt;br /&gt;
&lt;br /&gt;
== Water Supply Studies ==&lt;br /&gt;
&lt;br /&gt;
Winnipeg experienced an economic boom during the 1890’s through the 1920’s. The population rose from about 25,000 in 1891 - to 50,000 in 1901 - to 156,000 in 1911 - to more than 200,000 by 1921. In the early 1900’s immigrants arrived from Great Britain, Poland, Germany, Russia and Scandinavia expecting to find a prosperous city. There were many signs of growth including the first sky scraper in Western Canada (Union Bank Tower) which was built in 1903, a giant Eaton’s store (1905) to provide many consumer goods and a new Grain Exchange building was opened at Portage and Main in 1906 as part of the growing agricultural business as well as the construction of the Pinawa Hydro Electric Generating Station which would bring plenty of cheaper electricity to the city in 1906. At the time, there were more than 60 hotels along Main Street between the CPR and CNR stations. Water was identified early by the city leaders to be one of the keys to development.&lt;br /&gt;
&lt;br /&gt;
In 1902 the city hired Rudoph Hering, a consulting engineer from New York, who recommended an additional artesian well. In 1905 a new 10 million litres per day well was dug (do we know where) but with the rapid population growth noted above the supply was still inadequate and the quality was not suitable for sustained growth. Not only was water quality an issue but there was a growing need to deal with water quantity concerns to improve fire fighting purposes. In 1908 the James Avenue Pumping Station was built along side of the Red River near the Alexander Docks to provide fire fighting support for the businesses in the ‘Exchange District” but water quality was still a problem. (Look for more details in a subsequent article).&lt;br /&gt;
&lt;br /&gt;
In 1907 a Board of Consulting Engineers consisting of James H. Fuertes (New York), R. S. Lea, J. E. Schwitzer, and George C. Whipple were appointed by the City’s Water Supply Commission to advise fully as to the selection of a permanent and adequate system of supply for sustained growth. On August 29, 1909 the Board recommended the source be the Winnipeg River.  (we could show the map with the alternatives)&lt;br /&gt;
&lt;br /&gt;
Time moved on and nothing was done in terms of water supply and by 1911, Winnipeg’s population was 156,000 and had tripled from the previous decade. To assure its future, Winnipeg needed an abundant supply of fresh, safe, water. A search was started that led to a visionary proposal. Professor Charles S. Slichter offered three options:-	Drill new water wells north of the City-	Build a pipeline to the Winnipeg River-	Build an aqueduct to Shoal Lake, a “daring” and “visionary” approach to tap a source “of exceptional softness and purity”, in a lake of “clean Laurentian granite”&lt;br /&gt;
&lt;br /&gt;
'''The Shoal Lake Aqueduct'''&lt;br /&gt;
&lt;br /&gt;
Thomas Russ Deacon was born in Perth, Ontario January 3, 1865. He earned a degree in civil engineering in 1891and became superintendent for the construction of the North Bay waterworks in Ontario. He moved to Winnipeg in 1902 and partnered with H. B. Lyall in founding Manitoba Bridge and Iron Works (another pre-association engineer in Manitoba). Deacon was appointed to the Water Supply Commission in 1906 and campaigned vigorously for a better water supply and specifically for the Shoal Lake aqueduct. In 1912 Deacon was elected mayor on a platform of “Vote for Deacon and a real supply of water”. &lt;br /&gt;
&lt;br /&gt;
On April 7, 1913, a new Board of Consulting Engineers was appointed consisting of Rudolph Hering and James H. Fuertes from New York, and Frederic P. Stearns from Boston, ‘all eminent water supply engineers’. They were to report on the best means of supplying water from Shoal Lake, together with an estimate of cost and general plan of work. The report was received August 20, 1913 and approved by Council. A money By-law for $13,500,000 was submitted to a vote and the aqueduct won by a landslide. In spite of the costs, Winnipeggers were looking to the future and they wanted “water of good quality and lots of it”.&lt;br /&gt;
&lt;br /&gt;
Mayor Deacon declared “We have just undertaken – I was elected for that purpose - the bringing in….a sufficient water supply of pure soft water to supply a city of one million inhabitants, which we hope to have there within the next twenty years”. In January 1914 the International Joint Commission authorized the Greater Winnipeg Water District to draw 455 million litres per day (100 million gallons) of water from Shoal Lake/Lake of the Woods. As noted later, Winnipeg has not yet achieved the population predicted, and with the addition of storage at Deacon, MB, nor has the capacity of the aqueduct been attained.&lt;br /&gt;
&lt;br /&gt;
The chief engineer for the project was W. G. Chace P. Eng. Mr. Chace later became President of the Association of Professional Engineers in 1928.&lt;br /&gt;
&lt;br /&gt;
The route to Shoal Lake was 137 km through wilderness with no road access. &lt;br /&gt;
&lt;br /&gt;
(Insert Map). The Greater Winnipeg Water District railway was built to carry workers, equipment, gravel and cement. Camps were set up along the way to house workers and stockpile materials.&lt;br /&gt;
&lt;br /&gt;
For the first 129 kilometers a design patterned after ancient stone/masonry engineering was developed – an un-reinforced dish-shaped concrete floor covered with a parabolic-shaped shell. This is seen in the picture of Mr. Chace. Sections were poured in forms, coupled with copper expansion joints and manholes were installed every 1,524 m. Shoal Lake is 92 m higher than Winnipeg as shown by the profile below so the water flows by gravity. Twenty seven km from Winnipeg the aqueduct changes to a circular 2,400 mm pipe and 6 km west of Deacon, Manitoba the diameter changes to 1,520 mm. This is the site of the present day Deacon open reservoir and recently constructed water treatment plant (see reference).&lt;br /&gt;
&lt;br /&gt;
Construction of the aqueduct started May 15, 1915, and Shoal Lake water first flowed from Winnipeg taps on April 6, 1919. The aqueduct was officially opened by his Royal Highness, Edward, Prince of Wales on September 9, 1919. The total cost was $17 million.&lt;br /&gt;
&lt;br /&gt;
== Winnipeg’s Water Today ==&lt;br /&gt;
&lt;br /&gt;
Today, the water from the Shoal Lake source is conveyed by a complex system of aqueduct, storage and treatment at Deacon, and three major covered reservoirs and pumping facilities that deliver water to 170,000 residential and commercial customers through a vast network of feeder mains and water mains. Winnipeg is still licensed to take up to 455 million litres of water per day from the lake that continues to be only accessible by rail or boat.&lt;br /&gt;
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Lift pumps have been installed at the intake to fill the aqueduct when lake levels are low. The Deacon reservoir was built in 1972 and expanded twice, the most recent in 1997. It currently stores 8,400m litres (1,850m gallons) the equivalent of a 28 day supply for the City of Winnipeg. It is used to supplement peak summer demands and to allow brief shutdowns for the Shoal Lake Aqueduct for repairs.Historically, water quality was so high that the water was not treated except for the addition of chlorine for disinfectant and flouride to assist with resisting tooth decay. However, physical and aesthetic parameters of taste, odour, and turbidity were marginal when compared to current water quality guidelines, and concentrations of disinfection by-products and lead sometimes exceeded guidelines. Bacteriological tests meet the Manitoba criteria.&lt;br /&gt;
&lt;br /&gt;
With the trend toward more stringent water quality guidelines and a desire to minimize public health risks, the most recent technology water treatment plant has been constructed at Deacon and began operation in late 2009. The main focus of the treatment technologies is on waterborne protozoa such as giardia and cryptosporidium that are difficult to detect and not easily destroyed by conventional disinfection. Secondly, lower amounts of disinfection byproducts which have been identified as potential carcinogens will now be attainable with the new technology. The Winnipeg Water and Waste Department provided an insert with the March, 2010 water and sewer bill ''“Announcing our best tap water ever! Winnipeg’s new water treatment plant started up on December 9, 2009. The treatment facility is 12,000 sq. m in size (about the footprint of the MTS Centre). The water passes through six treatment stages, including filtration, ozonation, and two types of disinfection.”''&lt;br /&gt;
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The new system is expected to supply the amount of water need for the foreseeable future even given that residential demand is projected to increase until about 2020 due in large part to reduction in large consumers (commercial?) demand and the implementation of water conservation programs. Currently water consumption is made up of residential 54%, commercial 18%, industrial 10.4% and unaccounted 17.7% (fire fighting, flushing, street cleaning, leakage etc.). The average water consumption is 400 litres per person per day compared to 480 litres per person per day before the multi-faceted Water Conservation Program began. The toilet continues to be the largest indoor water use at 32%, and accordingly has the largest potential for water savings, hence the current rebate program to encourage installation of dual flush toilets. Industrial use has also declined due to the loss of large users, notably packing plants and refineries. Increased water rates have also contributed to decreased usage.&lt;br /&gt;
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Clearly the citizens’ health has been protected with a safe, clean water supply for many years to come.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
In a future article we will focus on the challenges of water supply development outside of Winnipeg. The Heritage Committee wants to hear from you on this and any other engineering or geoscience story.&lt;/div&gt;</summary>
		<author><name>Cnowell</name></author>
	</entry>
	<entry>
		<id>https://enggeomb-heritage.a2hosted.com/index.php?title=HVdc_Transmission&amp;diff=430</id>
		<title>HVdc Transmission</title>
		<link rel="alternate" type="text/html" href="https://enggeomb-heritage.a2hosted.com/index.php?title=HVdc_Transmission&amp;diff=430"/>
		<updated>2013-09-09T23:41:34Z</updated>

		<summary type="html">&lt;p&gt;Cnowell: &lt;/p&gt;
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&lt;div&gt;'''Description:''' The most important source of generation in the Manitoba Hydro system is the Nelson River. Multiple plants have been and are being developed. Transmission of the energy produced in the Nelson River plants takes place though multiple HVdc transmission systems.&lt;br /&gt;
&lt;br /&gt;
'''When:''' Planning for the development of the Nelson River and associated transmission began in Manitoba Hydro in the 1950’s. Construction of the first generation began in 196x and construction of the HVdc transmission system began in 196y. Development of the Nelson River and associated transmission continues today.&lt;br /&gt;
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'''Where:''' The works described in this article are located in the Winnipeg area, a transmission corridor from Winnipeg to Gillam and multiple generation sites on the Lower Nelson River (east of Gillam).&lt;br /&gt;
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'''Why:''' When the Nelson River was being considered for development, readily accessible, economic sites for generation in Southern Manitoba were approaching full development. Alternatives to continued development of the hydro-electric resources in the province were either thermal or nuclear. Planners determined that the development of the Nelson River was the most economic alternative at that time.&lt;br /&gt;
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'''How:''' The system has been developed and will continue to be renovated and expanded over a period of many years. The development has involved Manitoba Hydro engineers and technical staff, consultants and manufacturers.&lt;br /&gt;
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== Description== &lt;br /&gt;
&lt;br /&gt;
The development of hydroelectric generation on the Nelson River required a transmission system appropriate for the level of generation to be developed and the distance from the generation source to the load centre (Winnipeg). The choice was made to transmit the energy using high voltage direct current (HVdc) technology.&lt;br /&gt;
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HVdc transmission was first developed on a commercial basis in the 1930s and at the time of the design of the Nelson River transmission system it was a relatively mature technology, based on mercury arc valves and analog control systems. The transmission system requires more sophisticated equipment than a typical ac system.  There is equipment on both ends of the transmission line (converter stations) to convert ac voltage and current produced by the generators to dc current and voltage and back to ac. An ac system with similar capability would have required multiple parallel lines and sophisticated reactive power compensation at each end and at one or more new stations along the lines. DC uses a simpler two pole transmission line and extensive active and passive equipment to minimize adverse impacts on the ac system and to ensure reliable operation.  Overall, for a transmission system of the length of the Nelson River transmission system, losses are lower than for a comparable ac system and dc is the economic choice.&lt;br /&gt;
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Development of the HVdc transmission system started in 1966, with first power transmitted on Bipole I (1620 MW at 463.5 kV per pole) in 1972 and Bipole II (2000 MW at 500 kV per pole) in 1978. The system has undergone extensive rebuilding and will be expanded further with Bipole III as early as in 2017.&lt;br /&gt;
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Successful dc system operation requires at least:&lt;br /&gt;
&lt;br /&gt;
•	Ac generation designed to withstand the effects of dc conversion and transmission&lt;br /&gt;
•	&lt;br /&gt;
•	An ac system to transmit the generated power to the rectifier stations&lt;br /&gt;
•	&lt;br /&gt;
•	A rectifier station to convert ac power to dc power&lt;br /&gt;
•	&lt;br /&gt;
•	A dc transmission line (two pole) built to minimize external electromagnetic and electric field effects&lt;br /&gt;
•	&lt;br /&gt;
•	An inverter station to convert dc power back to ac power&lt;br /&gt;
•	&lt;br /&gt;
•	A fast communications system interconnecting the rectifier and inverter stations&lt;br /&gt;
•	&lt;br /&gt;
Each of these components had to be designed, tested and developed to make the project work.  Detailed descriptions of each component follow.  &lt;br /&gt;
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It is possible to transmit electrical power over long distances by ac. Hydro Quebec has done so using multiple lines at 765 kV.  &lt;br /&gt;
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The power transmitted on an ac line is approximately:&lt;br /&gt;
&lt;br /&gt;
     Pac = Vs * Vr * sin θ / Xc&lt;br /&gt;
&lt;br /&gt;
where Vs and Vr are the RMS values of the Sending and Receiving system voltages, respectively, θ is the phase angle difference between the two voltages and Xc is the reactive impedance of the line.&lt;br /&gt;
&lt;br /&gt;
To increase the power transfer the choices are to increase the operating voltage and to reduce the impedance. At the time that the transmission system for Nelson River generation was being planned, the practical highest transmission voltage was 735 kV (first used by Hydro Quebec for its long distance transmission system of the James Bay project). A reduction in impedance is achieved though the design of the wire configuration, the presence of series compensation (series capacitors to counteract the natural series inductance of the line) and the number of lines in service. During the planning phase for the Nelson River a 500 kV ac alternative was evaluated and was found to be more expensive. It would have required 5 circuits, with 4 to 5 stations (for compensation) and 75% shunt and 60% series compensation. A 700 kV option seems to have also been considered, in less detail, with 3 circuits required and 2 intermediate stations. At that time, some of the issues associated with high levels of compensation (for example, sub-synchronous oscillations) were not known.&lt;br /&gt;
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An ac transmission system requires the generation to operate at the same frequency as the system receiving the power and, as can be seen from the approximate power equation, the phase angle difference must be less than 90 degrees – the angle of maximum transmitted power.&lt;br /&gt;
&lt;br /&gt;
In contrast to ac transmission, which responds to system events (outages on the generation and transmission) by changing the transmitted power (a system contingency will affect the ac voltage level and/or the phase angle difference).   HVdc transmission is highly controllable and, with the exception of faults close to the converter station ac buses, relatively immune to ac contingencies.&lt;br /&gt;
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When HVdc transmission is employed, it is possible to operate the generation unsynchronized from the system receiving the power. This allows the generation to respond to a range of contingencies without stressing the transmission system or the generators. The generators must be designed to run at over and under speeds and to accept a reasonable range of harmonics produced by the HVdc conversion process. In the Nelson River case, the generating units were expected to run at up to 84 Hz (40% over the 60 Hz nominal frequency) and down to 54 Hz (10% below the nominal frequency). This is not onerous, since the unit could over-speed beyond 84 Hz if the governor fails and the load on the unit is lost.&lt;br /&gt;
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Hydro-electric generation, such as the Nelson River generation, is more robust with respect to off-nominal operation than a nuclear or thermal unit would be. These other generation types have turbines and shafts that can resonate as the system frequency deviates from the nominal frequency.&lt;br /&gt;
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== Collector System ==&lt;br /&gt;
&lt;br /&gt;
A collector system is a relatively small ac transmission system designed to deliver the generated power to the rectifier station. In the case of the Nelson River, the initial system comprised several short 138 kV lines from Kettle Generating Station to Radisson Converter Station, the rectifier station. In the initial planning of the collector system, 138 kV and 230 kV options were considered, with Kettle and Long Spruce Generating Stations connected to Radisson and Limestone isolated with Bipole II through a second converter station designated as Henday Station. The choice of 138 kV was an economic one. Connections to Kelsey Generating Station and the city of Thompson were available from Radisson at 138 kV and 230 kV respectively. &lt;br /&gt;
&lt;br /&gt;
The northern system (collector system) was ultimately developed differently than initially decided. There are advantages to being able to move more generation to whichever bipole is operating at the highest rating. Isolation would have limited that flexibility. Development of the lines to Long Spruce and Limestone was done at 230 kV, so three auto-transformers (138 kV to 230 kV) were provided to allow power from Long Spruce to flow to Radission (and vice versa, power could be transmitted from Kettle to Henday, the site of the second rectifier station). The initial choice of 138 kV did impose some constraints on the operation of the collector system in extreme contingencies due to the limited ratings of the auto-transformers.&lt;br /&gt;
&lt;br /&gt;
==HVdc Theory ==&lt;br /&gt;
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While the actual detailed design of a HVdc system is quite complex and sophisticated, the basics operating principles are straightforward.&lt;br /&gt;
&lt;br /&gt;
The ac system operates as a 3 phase system, while the dc system requires only two conductor. Transformation from 3 phase ac to dc occurs in a bridge, comprising 6 controllable switches, termed valves. The control system of a dc converter ensures that at any one time a maximum of three of these valves are conducting, providing a path for current to flow from one phase of the ac system, through a converter transformer, into the dc system, then back into a different phase of the ac system. The dc current is flowing through a large inductance, so current cannot be transferred from one valve to another instantaneously – there is a process where the current through one valve is dropping, while it is rising in the most recently conducting valve. This process is called commutation and it is the reason why there may be three rather than two valves conducting at any one time.&lt;br /&gt;
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 &lt;br /&gt;
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This diagram shows currents flowing in the ac system (the transformer is to the left with phases R, S and T) in the valves and dc line (a load, rather than an inverter, is shown). The valves are triggered in the order indicated by their number 1,2,3… and in this case valves 1 and 2 have been conducting and valve 3 has been triggered and is taking on the current that was flowing in valve 1.&lt;br /&gt;
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[[File:Bridge Firing Order.jpg]]&lt;br /&gt;
 &lt;br /&gt;
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This figure shows the situation at the rectifier, where the sinusoidal voltages are shown and the waveforms at the top left have just crossed, indicating a positive voltage across a valve. The voltage on the dc side continues to follow the sinusoid downwards until the next valve fires, at which point the c voltage becomes the average of the phase voltages on the two firing valves. Once the current has commutated (transferred) fully to the valve last fired, the voltage then rises to follow the voltage on that phase.   &lt;br /&gt;
&lt;br /&gt;
[[File:Rectifier Voltage.jpg]]&lt;br /&gt;
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Theoretically a valve can be triggered at the instant of zero ac voltage, however, practically that is not possible because for the valve to actually start conduction it needs some voltage across it. Therefore the triggering of the valves is delayed by some delay angle α, When a valve is triggered into conduction at α, the current through it starts rising , while decaying in the outgoing valve, over a period referred to as the overlap angle µ. This angle is a function of the inductance in the circuit and the value of the dc current. &lt;br /&gt;
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Increasing α results in a reduction of the average voltage on the dc side.&lt;br /&gt;
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At the inverter, a similar process occurs but firing is delayed beyond 90 degrees until theoretically 180 degrees. However, in practical terms, it is typically limited to about 155 degrees. The overlap angle µ at the inverter has exactly the same definitions as the rectifier, however, there is an additional angle that needs to be defined which is referred to as γ. γ is defined as the angle between the current ending (zero) in the valve to the voltage reversing polarity (going from negative to positive) on the same valve and obviously it occurs at the end of the conduction. In the figure below, βis defined as 180 – α.&lt;br /&gt;
&lt;br /&gt;
[[File: Inverter Voltage.jpg]]&lt;br /&gt;
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Since each ac phase voltage has a sinusoidal form, with voltage reversals every cycle (in North America there are 60 cycles per second = 60 Hz) the control system ensures that a new valve is closed at the right time to ensure a continuous dc current. The valves are only capable of current flow in one direction. They also cannot be opened on command and only open when the current through them drops to zero. For the design of Bipole I, mercury arc valves were the switching elements. At the time of this development, the &lt;br /&gt;
&lt;br /&gt;
Bipole 1 was designed utilizing mercury arc valves, and at that time it represented the highest dc voltage and dc current rating in the industry. This was the last installation of a mercury arc valve design, while Bipole II was the first installation of a water cooled semiconductor (thyristor) design.&lt;br /&gt;
&lt;br /&gt;
The key quantities associated with an HVdc system can be expressed in these equations:&lt;br /&gt;
&lt;br /&gt;
     Vdc = Vac N cos (α (or γ)) - 3 Xc Idc /π&lt;br /&gt;
&lt;br /&gt;
     Pac = Pdc = Vdc Idc&lt;br /&gt;
&lt;br /&gt;
     Qac = Pdc tan φ (up to 60% of real power - always into converters for a line-commutated system such as Bipole I and II)&lt;br /&gt;
&lt;br /&gt;
     N is transformer turns ratio, Xc is the commutating reactance of the converter transformer&lt;br /&gt;
&lt;br /&gt;
The converter power factor cos φ = Vdc / Vdco or ½ [ cos α + cos (α + μ)]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[File:BPI Mercury Arc Valves.jpg]]&lt;br /&gt;
 &lt;br /&gt;
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The mercury arc valves have now been replaced by solid state (thyristor) valves of comparable ratings.&lt;br /&gt;
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&lt;br /&gt;
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Looking at the various waveforms in both the ac and dc systems shows that the dc current is essentially constant, while the ac current contains characteristic harmonics of the ac voltage (5, 7, 11, 13, 17, 19, 23, 25,…) (np±1 where n = 1,2,3…and p is the pulse number - 6 or 12) while the dc voltage contains 6, 12, 24, 36. … harmonics (np). The ac harmonics can have adverse effects on connected ac equipment, including generators, and therefore ac harmonic filters are essential to reduce the level of harmonics in the ac system to acceptable levels. Similarly, dc side filters reduce the level of dc voltage harmonics, as these can interfere with communications equipment, for example.&lt;br /&gt;
&lt;br /&gt;
While Bipole I was built with 6 pulse technology (3 phase input to a 6 switch configuration), Bipole II and any modern dc system uses 12 pulse converters. A twelve pulse converter is comprised of two six pulse converters connected in series on the dc side and in parallel on the ac side through a Y/Y and a Y/Delta. This configuration is taking advantage of the 30 degrees phase shift between the Y and the Delta voltages to cancel some of the harmonics.. Analysis of the waveforms in this system shows that the ac harmonics at odd harmonic sets (i.e. 5, 7, 17, 19) are essentially cancelled greatly simplifying the design of the ac filters.&lt;br /&gt;
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Ac filters at lower frequencies are tuned filters with narrow resonance bands. As such, the design of the filers must consider the whole collector system design, to ensure that resonances within the generators, collector system and converter station filters are such that excessive voltages do not occur as the frequency of the units varies in response to system contingencies. In the Nelson River system, the issue is managed by a complex set of operating restrictions which link allowable filter configurations with line and generator configurations. In some situations, tripping of specific filters may occur during contingencies to avoid particularly bad resonances. In a modern HVdc link such operations are managed by a sophisticated control system referred to as a Reactive Power Control or RPC.&lt;br /&gt;
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Ac filter design is simpler in the receiving system (southern Manitoba) since the frequency does not vary over a wide range.&lt;br /&gt;
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There is another effect from firing delay – the converter valve requires (consumes) reactive power in an amount that varies as a function of the firing delay angle. The reactive power required is in the order of 60% of the real power being transmitted for steady-state conditions. &lt;br /&gt;
&lt;br /&gt;
At a rectifier it is normal for this reactive power to be provided by the ac filters (which arte capacitive at nominal frequency) and the generators (which can be designed to provide reactive power at a fairly nominal cost for normal conditions).&lt;br /&gt;
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The consumption of reactive power has consequences for contingencies associated with the integrated ac and dc systems. Loss of dc transmission or a portion of it, depending on the HVDC loading, as a result of faults leads to a temporary excess of reactive power in the system, resulting in potentially dangerous overvoltages. Similarly, some dc contingencies result in temporary increases in reactive power consumption, with a risk of low ac voltages and potential protection operation.&lt;br /&gt;
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The firing delay angle at the rectifier is between 5 and 15 degrees for normal operation. &lt;br /&gt;
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At the inverter the delay angle is larger than 90 degrees, and typically it is around 140 degrees. However what is really important for the inverter is the extinction angle γ. It determines the capability of the inverter valve to recover and withstand positive voltage again following conduction. A typical value for γ is 18 degrees for a 60 Hz system such as the Nelson River system. Smaller values of γ would lead to the outgoing valve re-conducting which causes a disturbance to the dc power. This phenomena is referred to as commutation failure. Often, and certainly in the Manitoba Hydro system, the inverter station (Dorsey) is located a long way from generation sources which could provide reactive power. Therefore, Dorsey station contains rotating machines, referred to as synchronous condensers (sometimes synchronous compensators). A synchronous condenser is basically a synchronous motor operating with no mechanical load. Dorsey station has 6 machines rated at +150 MVAr -60 MVAr and 3 machines rated at +300 MVAr –150 MVAr. Each has some overload capability and the combination of units is controlled on a steady state basis to ensure headroom for control actions (i.e., there is balancing of the loading according to rating).&lt;br /&gt;
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Beyond the supply of reactive power, synchronous condensers (compensators) have the characteristic of supplying system strength. System strength refers to the ability to supply short circuit current by virtue of having an internal voltage source. (Synchronous condensors have an excitation system that controls the magnetic field generated by the machine rotor. This magnetic field induces a voltage on the stator of the machine.)&lt;br /&gt;
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It has been found that successful operation of a conventional HVdc system requires a minimum system strength – this is normally calculated as a multiple of the rated HVdc power. The critical ratio is the Effective Short Circuit Ratio and is calculated as&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
          ESCR = System MVA – Filter MVAr&lt;br /&gt;
                 _________________________&lt;br /&gt;
                                 Pdc&lt;br /&gt;
&lt;br /&gt;
This number should be at least 2.5 for successful operation. Manitoba Hydro operates with an ESCR from 2.5 to 3 at the inverter.&lt;br /&gt;
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== Contingencies ==&lt;br /&gt;
&lt;br /&gt;
Several contingencies can affect power transmission on an HVdc link. At the rectifier, a fault on the ac system will reduce the voltage and the result will be a reduction in dc voltage to the point where the dc current may drop to zero. Through control of the firing angle, the system can maintain current for distant faults, but once the minimum firing angle is reached, the rectifier dc voltage will fall below the inverter voltage, resulting in the current dropping to zero. The HVdc controls will intervene and reduce the inverter dc voltage accordingly to sustain dc transmission, perhaps at a lower level than before the disturbance.&lt;br /&gt;
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At the inverter, ac faults will usually result in commutation failures, mainly because as described earlier the outgoing valve did not get enough deionization time and can not withstand the reapplied positive voltage. The degree of commutation failures depend very much on the fault, and the control system&lt;br /&gt;
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Once the ac fault is cleared, transmission will resume. In an ac system, a fault (a connection between phases or from one or more phases to ground), the current flowing through the fault is uncontrolled and dependent only on the system short circuit level (related to the number of generation sources near the fault) and the impedance of the fault.&lt;br /&gt;
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In a dc link, for essentially any fault, the link is controlled and the current is limited by control action. The speed of control is mainly limited by the ability of the ac system to accept the impact of the control action and the speed of the control and communication system.&lt;br /&gt;
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== Communication ==&lt;br /&gt;
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While an HVdc link can be operated without communications, this is a rare emergency form of operation. Normally, a high speed communication system between the inverter and rectifier stations is required. At one of the dc terminals, the requested power transmission level for the link is used to calculate a current order. The current order is coordinated between both terminals by the communications system. Additional control and protection signals are used to ensure that control and protection actions at both terminals are coordinated.), &lt;br /&gt;
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In the Manitoba Hydro situation, a microwave system was installed (and shared with MTS) with a backup system using railway communication wires. The system has now been upgraded with fibre optics and microwave paths.&lt;br /&gt;
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A major advantage of an HVdc link resulting from its controllability is that the link can be used to improve the performance of the interconnected ac systems. In the Manitoba Hydro situation signals are developed to improve the damping of both sending and receiving ac systems, to prevent run-down of units under overload conditions and to protect ties lines if one of the tie lines should open under export conditions. The controllability of the link has saved major capital investments that would otherwise have been required to produce the same level of performance.&lt;br /&gt;
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== Paralleling ==&lt;br /&gt;
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Normal operation of a dc link uses one dc converter pole connected to one dc line. However, in the event of loss of one or both conductors of one of the dc lines, the system can be reconfigured to put two dc converter poles on one line (i.e., the positive pole of Bipole I can be connected in parallel with the positive pole of Bipole II). The mode of operation is called paralleling and it is possible because of the controllability of the dc links. Paralleling is a form of multi-terminal dc operation.&lt;br /&gt;
&lt;br /&gt;
Since paralleling requires two dc poles to operate at the same pole voltage, it is only possible when the dc poles are fully available (i.e., 3 groups on Bipole I and 2 groups on Bipole II, with the dc voltage of Bipole II adjusted downwards to meet the maximum voltage of Bipole I. In emergency situations, this ability is very valuable. Although the current is doubled on the line, and losses are therefore 4 times normal, the line was designed for such operation and there is a net benefit to operation in paralleled mode.&lt;br /&gt;
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== Ground Electrodes ==&lt;br /&gt;
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An essential part of a dc link is a connection at the low voltage end of a pole, to ground, at one terminal of the link. This is to provide a ground reference for voltages on the dc equipment. In the Manitoba Hydro case, ground connections are present at both the rectifier and inverter stations. If one pole is out of operation, the full current flowing in the operating pole will flow in the ground connections (ground return). Ground electrodes are designed to handle such currents for a certain duration. While the dc line resistance is in the order of 15 ohms, the ground path resistance is in the order of 0.1 ohms. &lt;br /&gt;
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Even in normal operation a small amount of current will be flowing through the ground connections as a result of slight differences in tuning of the current controllers on the two poles.&lt;br /&gt;
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Dc currents flowing in the ground can have negative impacts on buried equipment, such as pipelines, and mitigation is used to minimize the impacts. While ac ground currents will tend to flow near the surface, dc currents tend to flow very deep in the earth.&lt;br /&gt;
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== DC Line Design ==&lt;br /&gt;
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There are presently two dc lines from the Nelson River (Radisson and Henday stations) to Winnipeg (Dorsey station). The distances are 895 and 937 km respectively. The conductors  for each line are carried on guyed towers with each pole conductor formed by two bundled sub-conductors (i.e., one pole of the line has two conductors held is close proximity by spacer dampers and clamps, operating as if it were one conductor).&lt;br /&gt;
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Each conductor is 4 cm diameter. There are about 7400 km of conductor in the two lines [(4*895 + 4*937) plus sag].&lt;br /&gt;
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The guyed towers have an average height of 38 m, the height being a function of the required ground clearance, the span between towers and the topography. &lt;br /&gt;
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[[File:DC Towers and Line.jpg]]&lt;br /&gt;
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To minimize the acoustical, electrical and magnetic effects of the dc lines outside of the right-of-way (137 m wide) the system is operated so that the conductors farthest apart are operated at negative polarity while the inner two conductors are operated at positive polarity. &lt;br /&gt;
&lt;br /&gt;
In 2001 a major program of replacement of the spacer dampers was undertaken. Carts suspended from the conductors were used to get access to the spacer dampers, all of which are located within the spans. Access to the carts was by helicopter. http://tdworld.com/mag/power_aerial_damper_changeout/ &lt;br /&gt;
&lt;br /&gt;
Kettle Generating Station was in-service before Bipole I was ready to transmit power. The first option form Kettle power was to transmit the output of units 1 and 2 over the 138 kV network. Then there was a temporary reconfiguration of the conductors of lines 1 and 2, to permit a very unbalance ac line to be created between Radisson and Grand Rapids, where the dc lines pass near that station. Because of the unusual parameters of the resulting line, transmission was very limited – to roughly 150 MW,&lt;br /&gt;
&lt;br /&gt;
== Upgrades ==&lt;br /&gt;
&lt;br /&gt;
Bipole I has been in operation since 1971. Bipole I was completed (all valve groups in service) in October of 1977.&lt;br /&gt;
&lt;br /&gt;
A major upgrade was undertaken in response to the aging mercury arc technology and to take advantage of the superior performance of the thyristor valve technology.. This work was completed in November 1993. In the upgrade, each pair of mercury arc valves was replaced by a two-valve thyristor assembly.&lt;br /&gt;
&lt;br /&gt;
[[File:BP1 Replacement Valves.jpg | Bipole 1 Replacement Thyristor Valves]]&lt;br /&gt;
&lt;br /&gt;
A unique aspect of the original Bipole I design was the presence of a bypass vacuum switch across each valve group for the purpose to use the start and shutdown of the valve group.. &lt;br /&gt;
&lt;br /&gt;
The first pole of bipole 1 of the upgrade was supplied by GEC Alsthom, and the second pole by Siemens.&lt;br /&gt;
&lt;br /&gt;
Bipole II first stage was completed in October 1978. The second stage was completed in May 1985. Development of the bipoles was staged with development of generation. Kettle was completed in 1974, Long Spruce in 1979 and Limestone in 1992 (started 1985, first generation in 1990).&lt;br /&gt;
&lt;br /&gt;
As mentioned above, Bipole II was the first application of water coled thyristor technology. At that time, thyristor ratings required two thyristors in parallel to handle the 2000 A requirement. Modern thyristors have much higher ratings (up to 4000 A) When and if these valves are replaced, the valve design will be much simpler.&lt;br /&gt;
&lt;br /&gt;
== Obsolesence ==&lt;br /&gt;
&lt;br /&gt;
With the complexity of HVc links comes the risk of obsolescence. Bipole I was built with control equipment based on the digital logic of the time, TTL. Finding replacement logic is now a problem. Modern control systems use modern technology, such as microprocessors, but these too have risks in terms of finding spare parts compatible with the original equipment. &lt;br /&gt;
&lt;br /&gt;
== Studies ==&lt;br /&gt;
&lt;br /&gt;
When Bipole I was being planned, planning study tools were available but limited in capability. At that time, manufacturers used simulators that could incorporate the real control systems but operate at much lower power levels. These large analog computers were expensive and limited in terms of data gathering capability and detail. For Bipole I Manitoba Hydro made use of simulators at English Electric, Stafford, England (the supplier for Bipole I). For Bipole II, they used simulation facilities at IREQ, the research arm of Hydro Quebec. Power flow and stability simulation was possible using software from Westinghouse and General Electric.&lt;br /&gt;
&lt;br /&gt;
Today, sophisticated software like EMTDC/PSCad (from the Manitoba HVDC Research Centre) and hardware like RTDS (From RTDS, Winnipeg) provide a high degree of confidence in the performance of the dc equipment and the integrated ac-dc system. Other sophisticated study tools were developed by the Manitoba HVDC Research Centre, working with IREQ and the University of Wisconsin – Madison, for EPRI. These tools are now part of the software suite from PowerTech, the research arm of BC Hydro.&lt;br /&gt;
&lt;br /&gt;
== Operating Philosophy ==&lt;br /&gt;
&lt;br /&gt;
The design of an HVdc link segregates functions to the greatest extent possible – with groups, poles and bipoles each representing a differentiation in control and protection. This means that the first contingency for a dc link s loss of a group. Loss of a bipole should be a very rare event, brought on by a contingency that affects equipment common to both poles (such as equipment connected to the ground electrode). Modern dc links are designed and built for one bipole outage every 2 years? The experience of Bipoles I and II are reported every year to Cigré (International Council on Large Electric Systems - Conseil International des Grandes Réseau Électriques). http://www.cigre.org&lt;br /&gt;
&lt;br /&gt;
The source of power for the Manitoba Hydro HVdc system is generation on the Lower Nelson River. This is discussed in detail in the article on Manitoba Hydro Lower Nelson River Generation Development.&lt;br /&gt;
&lt;br /&gt;
== Key Players: ==&lt;br /&gt;
&lt;br /&gt;
MH – Ernie Scott, Len Bateman, Lindsay Ingram, Tom Storey, Clarence Thio, Alf Buelow, Fred Jost, Don Simons, Chris Goodwin, Oliver Norris-Elye, Ken Ouelette, David Cass-Beggs, John McNichol and later Doug Chapman, Brett Davies, Peter Kuffel, Kelvin Kent&lt;br /&gt;
&lt;br /&gt;
MH Generation – Mac Uloth (Limestone)&lt;br /&gt;
&lt;br /&gt;
AECL (owner of Bipole I and lines) – Bob Hamlin, Dick Haywood, Art Derry&lt;br /&gt;
&lt;br /&gt;
Teshmont (a joint venture of Templeton, Shawinigan, Montreal Engineering) Rubin Shemie, Ron Harrison, Bob Burton, Dave Fletcher, Arun Ogale, V. Burtnyk, I. Reinart, R. Radley, L. Chin&lt;br /&gt;
&lt;br /&gt;
Dominion Bridge (towers)  F. Stock, D.L.T. Oakes&lt;br /&gt;
&lt;br /&gt;
U of Manitoba - Michael Tarnawecky&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
Proceedings, Manitoba Power Conference EHV-DC, Winnipeg, Canada 1971&lt;br /&gt;
*  Background to HVDC in Manitoba – T.E. Storey, J.S. Foster&lt;br /&gt;
*  Single Line Diagram of the Nelson River HVDC Transmission System – R.E. Harrison&lt;br /&gt;
*  Nelson River HVDC Terminal Station Layout – R.K. Shemie, A.F. Buelow&lt;br /&gt;
*  Nelson River Converter Station Auxiliaries and Power Supplies – R.G. Radley, L.S. Chin&lt;br /&gt;
*  Nelson River HVDC Transmission Line Foundation Design Aspects – I. Reinart&lt;br /&gt;
*  Nelson River HVDC Transmission Line Towers – D.L.T. Oakes&lt;br /&gt;
*  Contructional Aspect of the ±450 kV DC Nelson River Transmission Line – B.L. Barry, J.G. Cormie&lt;br /&gt;
*  Radio Interference and Corona Loss Measurements on “Nelson River” Conuctors – R.M. Morris, A.R. Morse&lt;br /&gt;
*  Harmonic Interference from DC Lines – K.R. Ouelette, D.W. Lewis&lt;br /&gt;
*  AC Filters for the Nelson River Transmission Project – D.E. Fletcher, C.D. Clarke&lt;br /&gt;
*  Ground Current Return Electrode Design – R.K. Shemie, D.S. Simons&lt;br /&gt;
*  Insulation Coordination for the Nelson River Converter Stations – D.E. Fletcher, F.G. Goodrich&lt;br /&gt;
*  HVDC Transmission Control Schemes – M.Z. Tarnawecky&lt;br /&gt;
*  Control and Protection Aspects of the Nelson River Transmission Project – A.A. Burrow, B.A Rowe&lt;br /&gt;
*  Use of HVDC for Improving AC System Stability and Speed Control – R.W. Haywood, K.J. Ralls*  Nelson River Transmission Project, Telecommunication Requirements and Design of Signal Processing Equipment – Y. Picot, C.J.B Martin&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
IEE Fifth International Conference on AC and DC Power Transmission, London, 17-20 September 1991&lt;br /&gt;
&lt;br /&gt;
*  The Integration of new valves and controls to Nelson River HVDC Bipole 1 – F.G. Goodrich, J.L. Hancock, B.A. Rowe and H.L. Thanawala (GEC Alsthom Transmission &amp;amp; Distribution Projects Limited), D.B. Willis (Manitoba Hydro)&lt;br /&gt;
&lt;br /&gt;
* On the design ,testing and operating experience of composite dry bushings in HVDC – M.M. Rashwan and W. McDermid (Manitoba Hydro), F. Hammer and A. Küchler (F&amp;amp;G Hochspannungsgeräte)&lt;br /&gt;
&lt;br /&gt;
* 1980 International Conference on Overvoltages and Compensation in Integrated AC-DC Systems&lt;br /&gt;
&lt;br /&gt;
*    Switching Overvoltages on the Nelson River HVDC System – Studies, Experience and Field Tests – C.V. Thio, J.R. McNichol, W.M McDermid, D. Povh, W. Schultz&lt;br /&gt;
&lt;br /&gt;
*    Impact of the Winnipeg – Minneapolis 500 kV AC Interconnection on the Operation of the Nelson River HVDC System – D.A. Woodford, W. Koschik&lt;/div&gt;</summary>
		<author><name>Cnowell</name></author>
	</entry>
	<entry>
		<id>https://enggeomb-heritage.a2hosted.com/index.php?title=James_Avenue_Pumping_Station&amp;diff=429</id>
		<title>James Avenue Pumping Station</title>
		<link rel="alternate" type="text/html" href="https://enggeomb-heritage.a2hosted.com/index.php?title=James_Avenue_Pumping_Station&amp;diff=429"/>
		<updated>2013-09-09T23:40:55Z</updated>

		<summary type="html">&lt;p&gt;Cnowell: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Introduction ==&lt;br /&gt;
As a means of celebrating the role of engineering and geoscience in the 91st year of APEGM's history, the Heritage Committee is writing a series of articles that link water to the economic and social development of the province. The first article described the relationship between commerce and water before the Association was formed. This article is a follow-up to the summer 2010 article on Winnipeg’s water supply as it related to health and welfare. This is the story of the historic James Avenue Pumping Station, part of Winnipeg’s early water supply system.A safe clean and abundant water supply is essential to public health. It is also important for the protection of persons and property from fires. The value to the economy is reflected in many ways; the key in this case, was reduced insurance costs.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;gallery&amp;gt;&lt;br /&gt;
File:JAinterior1980.jpg&lt;br /&gt;
File:JAexterior1980.jpg&lt;br /&gt;
File:JAinterior1906.jpg&lt;br /&gt;
File:Fire1921.jpg&lt;br /&gt;
&amp;lt;/gallery&amp;gt;&lt;br /&gt;
&lt;br /&gt;
== Summary == &lt;br /&gt;
Winnipeg’s first water system began in 1882 when a private company, Winnipeg Water Works Co., drew water from the Assiniboine River and distributed water by pipes to homes and businesses in the city core. The company’s intake and pumping facilities were on the north bank of the Assiniboine River at the Maryland Bridge. However, fire protection for the mainly wood buildings was inadequate, resulting in loss of life and property, and high insurance costs. In 1899, the City of Winnipeg purchased the system and began to use artesian wells rather than the foul river water. In 1904 a serious fire on Main Street threatened the entire business district and forced the City to pump Assiniboine River water into the mains.  The contaminated water resulted in a typhoid epidemic with 1300 cases reported in the following days. Winnipeg was experiencing an economic and population boom during the 1890’s through the 1920’s. Shortly after the 1904 fire, the Fire Underwriters’ Association reported to Council that ‘the city would find itself deficient of 3 million gallons of water based on the present rate of service, with over half the homes not yet serviced by water mains’. The City’s groundwater pumping station and 6.3 million gallon reservoir was located on McPhillips Street near Logan Avenue, three kilometres from the business district. In 1905 a new 10 million litre per day well was dug but with the rapid population growth the supply was still inadequate. There was also a concern about drawing the water table down below the river level and thereby introducing contamination.While studies were undertaken on ways to develop an abundant supply of fresh, safe, potable water, City Council directed its engineer, Col. Henry Ruttan ‘to determine a long term solution to providing the rapidly growing business district with adequate fire protection in a manner which would not impair public health’. Large warehouses with wooden post and beam construction were springing up all over the warehouse district. These warehouses were part of a growing trade that supplied all of western Canada. A major problem the entrepreneurs were facing was Winnipeg's high fire insurance rates because of the limited ability of the fire department to fight fires.&lt;br /&gt;
&lt;br /&gt;
In 1905, Col. Ruttan proposed a dedicated fire protection system drawing water from the Red River at the foot of James Avenue. Council approved and directed him to complete the works. Ruttan partially designed the high pressure fire protection system in 1906 and supervised the construction to completion in 1908.&lt;br /&gt;
&lt;br /&gt;
::'''It is interesting to note that one of the largest fires was the J.H. Ashdown Hardware Store (Winnipeg’s merchant prince) on Main Street. In 1906 Ashdown won the city election for Mayor running on a platform recommending city ownership of utilities.'''&lt;br /&gt;
&lt;br /&gt;
== Col. Henry N. Ruttan: Winnipeg City Engineer ==&lt;br /&gt;
&lt;br /&gt;
Born in Ontario in 1848, Henry N. Ruttan learned engineering on the job with the Grand Trunk Railway starting in 1868. He also worked with Sanford Fleming, who was building the Intercolonial Railway. In the 1870’s he began a two year study of municipal engineering, and, after working for municipalities in Ontario, came to Winnipeg in 1880 to start his own engineering business. In 1885 he was appointed the City Engineer, a position he held until retirement in1914.&lt;br /&gt;
[[File:Ruttan.jpg|thumbnail|right|Lt. Col. Henry Norlande Ruttan, ca 1914. (Courtesy of the Provincial Archives of Manitoba, N5188)]]&lt;br /&gt;
&lt;br /&gt;
Ruttan was a staunch proponent of public ownership of utilities, including the City's own power system, quarry, and asphalt paving plant. He oversaw the infrastructure for a population growth from 16,000 in 1885 to 130,000 at his retirement.He was an active supporter of the engineering profession and a charter member of the Canadian Society of Civil Engineering and was its president in 1910.&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| There is no doubt H.N. Ruttan was a formidable engineer. In addition to his engineering exploits he maintained a parallel career in military service, ultimately becoming a Lieutenant-Colonel. He was a Captain in the Little Black Devils in 1883, served in the Saskatchewan Rebellion in 1885, and had already served against the Fenians in 1866. On 18th May 1910 he was recalled to command the recently re-named &amp;quot;100th Winnipeg Grenadiers&amp;quot;. Ruttan died in Winnipeg in 1925 at his home at 180 West Gate.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== The High Pressure System ==&lt;br /&gt;
The high pressure system to give fire protection for the large buildings in the downtown was built at a cost of $1million, largely borne by the businesses along the 12.8 km of high pressure mains. [With today’s purchasing power the cost would equal over $25M.] The mains and 70 hydrants were separate from the domestic water supply. The pumping system consisted of 3 main structures: the river intake and pumping station, the gas producing plant, and the gas storage tank. The design is a model for engineering with a careful view to reliability based on redundancy.  &lt;br /&gt;
&lt;br /&gt;
== James Avenue Pumping Station ==  &lt;br /&gt;
The pumping station building is 48 m by 28 m, steel frame, faced with buff coloured brick above a concrete substructure. The building is divided into 2 gabled bays, each having a crane running the length of the interior. The engine floor is 5.5 m below grade and the six pumps are in a trench below this. The pump suction and discharge header pipes are 600 mm diameter, in duplicate, all six pumps being connected to both pipes, either being sufficient capacity for the whole plant. The suction header is connected to a two compartment wet well. The water was conducted to the wet well by a 900 mm wood stave intake pipe that extended 130 m from the well to deep water in the river where a stone ballasted crib was located. In 1919 the station was connected to the new aqueduct, a source preferable to the muddy water of the Red River.&lt;br /&gt;
&lt;br /&gt;
The pumps are triplex double acting piston pumps. The water was pumped into the mains at a pressure of 2,109 kpa (300 psi). The pumps were supplied by W. Jacks and Company of Glasgow. The six 2-cylinder gas engines were built by Crossley Brothers of Manchester, England. The engines for the larger pumps were 402 kW (540 hp) each and for the smaller pumps, 186 kW (250 hp) each. Steam and electricity to power the pumps were out of the question due to high standby costs. Standby costs for the gas engines were minimal.Upon receipt of an alarm by telephone or fire box through the Central Fire Hall, the pressure automatically increased. Although the system consisted of a maze of valves, motors and pumps, all six pumps could be started and working to capacity in three and a half minutes from receiving a call.The first of the pumping units was placed in service in November 1907, and the remaining units were completed by July 1, 1908 when the whole plant was practically completed and the operation was taken over by the city.&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| &lt;br /&gt;
Much of the equipment for the James Avenue Station was supplied by theCrossley Brothers of Manchester, England. The twobrothers, Francis (1839-97) and William J.(1844-1911) set up in 1867. William concentrated onthe business side, Francis provided the engineering expertise. The brotherswere committed Christians and strictly ‘teetotal’. They wouldrefuse to supply their products to companies such as breweries, whom they didnot approve of. &lt;br /&gt;
One of their major contributions to manufacturing was theintroduction of the assembly line. TheCrossley system even influenced Henry Ford, whovisited the plant at the turn of the 20th century.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== Producer Gas System and Storage Tanks ==&lt;br /&gt;
&lt;br /&gt;
The gas producing plant was attached to the pumping station. Coal or coke was heated in 4 boilers to produce a gas under pressure. The gas was filtered, cooled, and piped to the gas storage tank east of the pumping station.The plant had four massive Crossley type producers: two 373 kW (500 hp), and two 745 kW (1000 hp), with the necessary platforms, hoppers and piping. The plant had an overload capacity of fifty percent with selected coal and could make gas from anthracite, lignite, or any non-caking bituminous coal. The coal was delivered on railway track adjoining the building and unloaded via a hopper. &lt;br /&gt;
&lt;br /&gt;
An elevator fitted with rotary feeding gear ensured regular feed without choking and raised the coal above the producer hoppers. The elevator and conveyor were operated by a steam engine. Two air super-heaters with gas and air connections and dust collectors were attached to the producers. Each unit was supplied with a hot gas tubular boiler.Four wet scrubbers, fitted with tar sieves and filled with coke, removed the condensable hydrocarbons from the gas. Three centrifugal tar extractors completed the removal of the tar from the gas.Two sawdust scrubbers, either of which was capable of removing any remaining impurities from the gas were placed near the inlet to the gas holder. &lt;br /&gt;
&lt;br /&gt;
In addition, centrifugal circulating pumps and Root air blowers were provided.The cleaning plant was operated by two 13.4 kW Crossley engines, either of which had capacity to drive the whole plant. An important feature of the installation was that there was a spare unit of each type of machine, so that in case of a breakdown, the plant could still be operated to its rated capacity. Two steam boilers furnished additional steam for the producer and also drove the elevator and blower engines, and supplied steam for heating the buildings.The gas holder and pumping station was connected with the city gas mains by a special 12” pipe for a full supply of gas should the producer gas system be out of service.The gas holder tank was steel with a facing of brick with the capacity to supply the pumps for from 1 ½ to 5 hours depending on the number of pumps running.&lt;br /&gt;
&lt;br /&gt;
== Distribution System == &lt;br /&gt;
Two 500 mm fire system water mains were installed from the pumping station to Main Street by different routes, connected with sub-mains on the way. Each main had the capacity to take the water from the pumps when working to their rated capacity. Approximately 12.8 km of high pressure mains and 70 hydrants were installed to protect the city core. The mains ran on Main Street from Higgins Ave. to the Assiniboine River and on Portage Ave. from the Red River to Osborne Street, and on other streets.The mains were designed for a working pressure of 2,109 kpa and the ability to withstand water hammer. The mains were tested at the foundry, and after installation were tested from 3,515 kpa to 4,922 kpa. The pipes were provided with extra heavy hubs and two lead grooves and operated entirely satisfactory.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The hydrant valves were provided with pilot valves to fill the hydrant before opening the main valve against the pressure. Both valves were operated by the same stem.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Impact on the City ==&lt;br /&gt;
The dedicated high pressure system was very successful and no building adjacent to a burning building was lost afterward due to a lack of water. As a result insurance rates declined and the City continued its dizzy expansion. It was said that the water pressure generated by the pumping station could reach the height of a three story building as far away as Portage Ave. and Sherbrook St. at the site of the newly formed Manitoba Government Telephones’ (MTS’s forerunner) large telephone exchange building being built to service the St James area (then outside the city of Winnipeg).&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== A Heritage Project Even in 1908 ==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
When it was constructed in 1908 the high pressure system was one of the largest, most sophisticated, in the world. It was one of only two high pressure fire fighting systems in North America. The British Association, held its 1909 annual meeting in Winnipeg, and the members arranged a ‘Visit to The City Water Works High Pressure Plant, Artesian Well System’ on Monday, August 30. The published invitation stated ‘Colonel H. N. Ruttan, City Engineer, has kindly consented to act as guide to the party’. For the visit,  he prepared an eight page description of the system entitled ‘Winnipeg’s Water Works’ which largely featured the high pressure pumping station and fire fighting system. [The British Association rarely travelled outside of the UK for its annual meetings and in 1909 it would have been a long and arduous journey.]In 1910, Col. Ruttan presented a paper on the innovative project at the AWWA (American Water Works Association) Convention in New Orleans which was published in the Conference Proceedings. &lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| The Association of Professional Engineers, APEM at the time, considered taking the building over as a combination museum and office space in 1990. Commissioning an architectural feasibility study on the concept. For various reasons, mostly funding, it never materialized. &lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== Today: A Grade II heritage building still looking for a tenant ==&lt;br /&gt;
&lt;br /&gt;
The gas producing plant and storage tank were demolished in 1962 when the pump engines were converted to natural gas and electricity. The pumping station was taken out of service in 1986, a victim of high operating costs, deteriorating water mains and modern pumper trucks that offer firefighters greater flexibility. But not before the station had been declared a Grade II heritage building by the Winnipeg Planning, Property, &amp;amp; Development department in 1982. &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
After the building was shut down in 1986 it was given to Winnipeg’s CentreVenture corporation for development. CentreVenture sold it in 2001, including the original equipment and machinery, for $159,000. Later, CentreVenture had a change of heart after a nightclub was proposed for the building, and bought it back for $750,000. The most recent proposed use occurred in April 2010 when the press reported a market garden organization was contemplating using the lot for an outdoor market in the summer and the building for an indoor market in winter. To date it remains undeveloped minus a large piece of machinery which the interim owners donated to a heritage museum in Austin.&lt;br /&gt;
&lt;br /&gt;
== What Can We Learn? ==  &lt;br /&gt;
The James Avenue Pumping Station has lessons for all of us, as engineers and geoscientists in today’s hurly burly fast paced world. Here are some that come into the Heritage Committee’s collective thoughts:&lt;br /&gt;
&lt;br /&gt;
#	Our forefathers were not shirkers –they showed determination and persistence. &lt;br /&gt;
#	They were far sighted and confident of the impact that good infrastructure could have on the growth of the city.&lt;br /&gt;
#	Private-Public-Partnerships are not new, 80% of the cost was raised by the merchants that the system ultimately protected.&lt;br /&gt;
#	Planned obsolescence was not in their DNA; to build in 1908 and have it operate, with small modifications, for close to eighty years shows vision. As always, the Heritage Committee would be pleased to hear from anyone on this and any other engineering or geoscience story that highlights the contributions of the professions to the quality of life in Manitoba.  &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
* The Manitoba Historical Society published an article on the pumping Station: Firewater - The James Avenue Pumping Station – Manitoba History, Number 13, Spring 1987.&lt;br /&gt;
* The Western Canada ‘Water’ published the article ‘Looking Back: Waterworks in the Early 20th Century, Winnipeg’s James Avenue fire service pumping station’, Winter 2009, by Bill Brant, Genivar.&lt;/div&gt;</summary>
		<author><name>Cnowell</name></author>
	</entry>
	<entry>
		<id>https://enggeomb-heritage.a2hosted.com/index.php?title=James_Avenue_Pumping_Station&amp;diff=428</id>
		<title>James Avenue Pumping Station</title>
		<link rel="alternate" type="text/html" href="https://enggeomb-heritage.a2hosted.com/index.php?title=James_Avenue_Pumping_Station&amp;diff=428"/>
		<updated>2013-09-09T23:40:33Z</updated>

		<summary type="html">&lt;p&gt;Cnowell: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Introduction ==&lt;br /&gt;
As a means of celebrating the role of engineering and geoscience in the 91st year of APEGM's history, the Heritage Committee is writing a series of articles that link water to the economic and social development of the province. The first article described the relationship between commerce and water before the Association was formed. This article is a follow-up to the summer 2010 article on Winnipeg’s water supply as it related to health and welfare. This is the story of the historic James Avenue Pumping Station, part of Winnipeg’s early water supply system.A safe clean and abundant water supply is essential to public health. It is also important for the protection of persons and property from fires. The value to the economy is reflected in many ways; the key in this case, was reduced insurance costs.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;gallery&amp;gt;&lt;br /&gt;
File:JAinterior1980.jpg&lt;br /&gt;
File:JAexterior1980.jpg&lt;br /&gt;
File:JAinterior1906.jpg&lt;br /&gt;
File:Fire1921.jpg&lt;br /&gt;
&amp;lt;/gallery&amp;gt;&lt;br /&gt;
&lt;br /&gt;
== Summary == &lt;br /&gt;
Winnipeg’s first water system began in 1882 when a private company, Winnipeg Water Works Co., drew water from the Assiniboine River and distributed water by pipes to homes and businesses in the city core. The company’s intake and pumping facilities were on the north bank of the Assiniboine River at the Maryland Bridge. However, fire protection for the mainly wood buildings was inadequate, resulting in loss of life and property, and high insurance costs. In 1899, the City of Winnipeg purchased the system and began to use artesian wells rather than the foul river water. In 1904 a serious fire on Main Street threatened the entire business district and forced the City to pump Assiniboine River water into the mains.  The contaminated water resulted in a typhoid epidemic with 1300 cases reported in the following days. Winnipeg was experiencing an economic and population boom during the 1890’s through the 1920’s. Shortly after the 1904 fire, the Fire Underwriters’ Association reported to Council that ‘the city would find itself deficient of 3 million gallons of water based on the present rate of service, with over half the homes not yet serviced by water mains’. The City’s groundwater pumping station and 6.3 million gallon reservoir was located on McPhillips Street near Logan Avenue, three kilometres from the business district. In 1905 a new 10 million litre per day well was dug but with the rapid population growth the supply was still inadequate. There was also a concern about drawing the water table down below the river level and thereby introducing contamination.While studies were undertaken on ways to develop an abundant supply of fresh, safe, potable water, City Council directed its engineer, Col. Henry Ruttan ‘to determine a long term solution to providing the rapidly growing business district with adequate fire protection in a manner which would not impair public health’. Large warehouses with wooden post and beam construction were springing up all over the warehouse district. These warehouses were part of a growing trade that supplied all of western Canada. A major problem the entrepreneurs were facing was Winnipeg's high fire insurance rates because of the limited ability of the fire department to fight fires.&lt;br /&gt;
&lt;br /&gt;
In 1905, Col. Ruttan proposed a dedicated fire protection system drawing water from the Red River at the foot of James Avenue. Council approved and directed him to complete the works. Ruttan partially designed the high pressure fire protection system in 1906 and supervised the construction to completion in 1908.&lt;br /&gt;
&lt;br /&gt;
::'''It is interesting to note that one of the largest fires was the J.H. Ashdown Hardware Store (Winnipeg’s merchant prince) on Main Street. In 1906 Ashdown won the city election for Mayor running on a platform recommending city ownership of utilities.'''&lt;br /&gt;
&lt;br /&gt;
== Col. Henry N. Ruttan: Winnipeg City Engineer ==&lt;br /&gt;
&lt;br /&gt;
Born in Ontario in 1848, Henry N. Ruttan learned engineering on the job with the Grand Trunk Railway starting in 1868. He also worked with Sanford Fleming, who was building the Intercolonial Railway. In the 1870’s he began a two year study of municipal engineering, and, after working for municipalities in Ontario, came to Winnipeg in 1880 to start his own engineering business. In 1885 he was appointed the City Engineer, a position he held until retirement in1914.&lt;br /&gt;
[[File:Ruttan.jpg|thumbnail|right|Lt. Col. Henry Norlande Ruttan, ca 1914. (Courtesy of the Provincial Archives of Manitoba, N5188)]]&lt;br /&gt;
&lt;br /&gt;
Ruttan was a staunch proponent of public ownership of utilities, including the City's own power system, quarry, and asphalt paving plant. He oversaw the infrastructure for a population growth from 16,000 in 1885 to 130,000 at his retirement.He was an active supporter of the engineering profession and a charter member of the Canadian Society of Civil Engineering and was its president in 1910.&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| There is no doubt H.N. Ruttan was a formidable engineer. In addition to his engineering exploits he maintained a parallel career in military service, ultimately becoming a Lieutenant-Colonel. He was a Captain in the Little Black Devils in 1883, served in the Saskatchewan Rebellion in 1885, and had already served against the Fenians in 1866. On 18th May 1910 he was recalled to command the recently re-named &amp;quot;100th Winnipeg Grenadiers&amp;quot;. Ruttan died in Winnipeg in 1925 at his home at 180 West Gate.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== The High Pressure System ==&lt;br /&gt;
The high pressure system to give fire protection for the large buildings in the downtown was built at a cost of $1million, largely borne by the businesses along the 12.8 km of high pressure mains. [With today’s purchasing power the cost would equal over $25M.] The mains and 70 hydrants were separate from the domestic water supply. The pumping system consisted of 3 main structures: the river intake and pumping station, the gas producing plant, and the gas storage tank. The design is a model for engineering with a careful view to reliability based on redundancy.  &lt;br /&gt;
&lt;br /&gt;
== James Avenue Pumping Station ==  &lt;br /&gt;
The pumping station building is 48 m by 28 m, steel frame, faced with buff coloured brick above a concrete substructure. The building is divided into 2 gabled bays, each having a crane running the length of the interior. The engine floor is 5.5 m below grade and the six pumps are in a trench below this. The pump suction and discharge header pipes are 600 mm diameter, in duplicate, all six pumps being connected to both pipes, either being sufficient capacity for the whole plant. The suction header is connected to a two compartment wet well. The water was conducted to the wet well by a 900 mm wood stave intake pipe that extended 130 m from the well to deep water in the river where a stone ballasted crib was located. In 1919 the station was connected to the new aqueduct, a source preferable to the muddy water of the Red River.&lt;br /&gt;
&lt;br /&gt;
The pumps are triplex double acting piston pumps. The water was pumped into the mains at a pressure of 2,109 kpa (300 psi). The pumps were supplied by W. Jacks and Company of Glasgow. The six 2-cylinder gas engines were built by Crossley Brothers of Manchester, England. The engines for the larger pumps were 402 kW (540 hp) each and for the smaller pumps, 186 kW (250 hp) each. Steam and electricity to power the pumps were out of the question due to high standby costs. Standby costs for the gas engines were minimal.Upon receipt of an alarm by telephone or fire box through the Central Fire Hall, the pressure automatically increased. Although the system consisted of a maze of valves, motors and pumps, all six pumps could be started and working to capacity in three and a half minutes from receiving a call.The first of the pumping units was placed in service in November 1907, and the remaining units were completed by July 1, 1908 when the whole plant was practically completed and the operation was taken over by the city.&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| &lt;br /&gt;
Much of the equipment for the James Avenue Station was supplied by theCrossley Brothers of Manchester, England. The twobrothers, Francis (1839-97) and William J.(1844-1911) set up in 1867. William concentrated onthe business side, Francis provided the engineering expertise. The brotherswere committed Christians and strictly ‘teetotal’. They wouldrefuse to supply their products to companies such as breweries, whom they didnot approve of. &lt;br /&gt;
One of their major contributions to manufacturing was theintroduction of the assembly line. TheCrossley system even influenced Henry Ford, whovisited the plant at the turn of the 20th century.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== Producer Gas System and Storage Tanks ==&lt;br /&gt;
&lt;br /&gt;
The gas producing plant was attached to the pumping station. Coal or coke was heated in 4 boilers to produce a gas under pressure. The gas was filtered, cooled, and piped to the gas storage tank east of the pumping station.The plant had four massive Crossley type producers: two 373 kW (500 hp), and two 745 kW (1000 hp), with the necessary platforms, hoppers and piping. The plant had an overload capacity of fifty percent with selected coal and could make gas from anthracite, lignite, or any non-caking bituminous coal. The coal was delivered on railway track adjoining the building and unloaded via a hopper. &lt;br /&gt;
&lt;br /&gt;
An elevator fitted with rotary feeding gear ensured regular feed without choking and raised the coal above the producer hoppers. The elevator and conveyor were operated by a steam engine. Two air super-heaters with gas and air connections and dust collectors were attached to the producers. Each unit was supplied with a hot gas tubular boiler.Four wet scrubbers, fitted with tar sieves and filled with coke, removed the condensable hydrocarbons from the gas. Three centrifugal tar extractors completed the removal of the tar from the gas.Two sawdust scrubbers, either of which was capable of removing any remaining impurities from the gas were placed near the inlet to the gas holder. &lt;br /&gt;
&lt;br /&gt;
In addition, centrifugal circulating pumps and Root air blowers were provided.The cleaning plant was operated by two 13.4 kW Crossley engines, either of which had capacity to drive the whole plant. An important feature of the installation was that there was a spare unit of each type of machine, so that in case of a breakdown, the plant could still be operated to its rated capacity. Two steam boilers furnished additional steam for the producer and also drove the elevator and blower engines, and supplied steam for heating the buildings.The gas holder and pumping station was connected with the city gas mains by a special 12” pipe for a full supply of gas should the producer gas system be out of service.The gas holder tank was steel with a facing of brick with the capacity to supply the pumps for from 1 ½ to 5 hours depending on the number of pumps running.&lt;br /&gt;
&lt;br /&gt;
== Distribution System == &lt;br /&gt;
Two 500 mm fire system water mains were installed from the pumping station to Main Street by different routes, connected with sub-mains on the way. Each main had the capacity to take the water from the pumps when working to their rated capacity. Approximately 12.8 km of high pressure mains and 70 hydrants were installed to protect the city core. The mains ran on Main Street from Higgins Ave. to the Assiniboine River and on Portage Ave. from the Red River to Osborne Street, and on other streets.The mains were designed for a working pressure of 2,109 kpa and the ability to withstand water hammer. The mains were tested at the foundry, and after installation were tested from 3,515 kpa to 4,922 kpa. The pipes were provided with extra heavy hubs and two lead grooves and operated entirely satisfactory.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The hydrant valves were provided with pilot valves to fill the hydrant before opening the main valve against the pressure. Both valves were operated by the same stem.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Impact on the City ==&lt;br /&gt;
The dedicated high pressure system was very successful and no building adjacent to a burning building was lost afterward due to a lack of water. As a result insurance rates declined and the City continued its dizzy expansion. It was said that the water pressure generated by the pumping station could reach the height of a three story building as far away as Portage Ave. and Sherbrook St. at the site of the newly formed Manitoba Government Telephones’ (MTS’s forerunner) large telephone exchange building being built to service the St James area (then outside the city of Winnipeg).&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== A Heritage Project Even in 1908 ==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
When it was constructed in 1908 the high pressure system was one of the largest, most sophisticated, in the world. It was one of only two high pressure fire fighting systems in North America. The British Association, held its 1909 annual meeting in Winnipeg, and the members arranged a ‘Visit to The City Water Works High Pressure Plant, Artesian Well System’ on Monday, August 30. The published invitation stated ‘Colonel H. N. Ruttan, City Engineer, has kindly consented to act as guide to the party’. For the visit,  he prepared an eight page description of the system entitled ‘Winnipeg’s Water Works’ which largely featured the high pressure pumping station and fire fighting system. [The British Association rarely travelled outside of the UK for its annual meetings and in 1909 it would have been a long and arduous journey.]In 1910, Col. Ruttan presented a paper on the innovative project at the AWWA (American Water Works Association) Convention in New Orleans which was published in the Conference Proceedings. &lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| The Association of Professional Engineers, APEM at the time, considered taking the building over as a combination museum and office space in 1990. Commissioning an architectural feasibility study on the concept. For various reasons, mostly funding, it never materialized. &lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== Today: A Grade II heritage building still looking for a tenant ==&lt;br /&gt;
&lt;br /&gt;
The gas producing plant and storage tank were demolished in 1962 when the pump engines were converted to natural gas and electricity. The pumping station was taken out of service in 1986, a victim of high operating costs, deteriorating water mains and modern pumper trucks that offer firefighters greater flexibility. But not before the station had been declared a Grade II heritage building by the Winnipeg Planning, Property, &amp;amp; Development department in 1982. &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
After the building was shut down in 1986 it was given to Winnipeg’s CentreVenture corporation for development. CentreVenture sold it in 2001, including the original equipment and machinery, for $159,000. Later, CentreVenture had a change of heart after a nightclub was proposed for the building, and bought it back for $750,000. The most recent proposed use occurred in April 2010 when the press reported a market garden organization was contemplating using the lot for an outdoor market in the summer and the building for an indoor market in winter. To date it remains undeveloped minus a large piece of machinery which the interim owners donated to a heritage museum in Austin.&lt;br /&gt;
&lt;br /&gt;
== What Can We Learn? ==  &lt;br /&gt;
The James Avenue Pumping Station has lessons for all of us, as engineers and geoscientists in today’s hurly burly fast paced world. Here are some that come into the Heritage Committee’s collective thoughts:&lt;br /&gt;
&lt;br /&gt;
#	Our forefathers were not shirkers –they showed determination and persistence. &lt;br /&gt;
#	They were far sighted and confident of the impact that good infrastructure could have on the growth of the city.&lt;br /&gt;
#	Private-Public partnerships are not new, 80% of the cost was raised by the merchants that the system ultimately protected.&lt;br /&gt;
#	Planned obsolescence was not in their DNA; to build in 1908 and have it operate, with small modifications, for close to eighty years shows vision. As always, the Heritage Committee would be pleased to hear from anyone on this and any other engineering or geoscience story that highlights the contributions of the professions to the quality of life in Manitoba.  &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
* The Manitoba Historical Society published an article on the pumping Station: Firewater - The James Avenue Pumping Station – Manitoba History, Number 13, Spring 1987.&lt;br /&gt;
* The Western Canada ‘Water’ published the article ‘Looking Back: Waterworks in the Early 20th Century, Winnipeg’s James Avenue fire service pumping station’, Winter 2009, by Bill Brant, Genivar.&lt;/div&gt;</summary>
		<author><name>Cnowell</name></author>
	</entry>
	<entry>
		<id>https://enggeomb-heritage.a2hosted.com/index.php?title=James_Avenue_Pumping_Station&amp;diff=427</id>
		<title>James Avenue Pumping Station</title>
		<link rel="alternate" type="text/html" href="https://enggeomb-heritage.a2hosted.com/index.php?title=James_Avenue_Pumping_Station&amp;diff=427"/>
		<updated>2013-09-09T23:39:58Z</updated>

		<summary type="html">&lt;p&gt;Cnowell: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Introduction ==&lt;br /&gt;
As a means of celebrating the role of engineering and geoscience in the 91st year of APEGM's history, the Heritage Committee is writing a series of articles that link water to the economic and social development of the province. The first article described the relationship between commerce and water before the Association was formed. This article is a follow-up to the summer 2010 article on Winnipeg’s water supply as it related to health and welfare. This is the story of the historic James Avenue Pumping Station, part of Winnipeg’s early water supply system.A safe clean and abundant water supply is essential to public health. It is also important for the protection of persons and property from fires. The value to the economy is reflected in many ways; the key in this case, was reduced insurance costs.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;gallery&amp;gt;&lt;br /&gt;
File:JAinterior1980.jpg&lt;br /&gt;
File:JAexterior1980.jpg&lt;br /&gt;
File:JAinterior1906.jpg&lt;br /&gt;
File:Fire1921.jpg&lt;br /&gt;
&amp;lt;/gallery&amp;gt;&lt;br /&gt;
&lt;br /&gt;
== Summary == &lt;br /&gt;
Winnipeg’s first water system began in 1882 when a private company, Winnipeg Water Works Co., drew water from the Assiniboine River and distributed water by pipes to homes and businesses in the city core. The company’s intake and pumping facilities were on the north bank of the Assiniboine River at the Maryland Bridge. However, fire protection for the mainly wood buildings was inadequate, resulting in loss of life and property, and high insurance costs. In 1899, the City of Winnipeg purchased the system and began to use artesian wells rather than the foul river water. In 1904 a serious fire on Main Street threatened the entire business district and forced the City to pump Assiniboine River water into the mains.  The contaminated water resulted in a typhoid epidemic with 1300 cases reported in the following days. Winnipeg was experiencing an economic and population boom during the 1890’s through the 1920’s. Shortly after the 1904 fire, the Fire Underwriters’ Association reported to Council that ‘the city would find itself deficient of 3 million gallons of water based on the present rate of service, with over half the homes not yet serviced by water mains’. The City’s groundwater pumping station and 6.3 million gallon reservoir was located on McPhillips Street near Logan Avenue, three kilometres from the business district. In 1905 a new 10 million litre per day well was dug but with the rapid population growth the supply was still inadequate. There was also a concern about drawing the water table down below the river level and thereby introducing contamination.While studies were undertaken on ways to develop an abundant supply of fresh, safe, potable water, City Council directed its engineer, Col. Henry Ruttan ‘to determine a long term solution to providing the rapidly growing business district with adequate fire protection in a manner which would not impair public health’. Large warehouses with wooden post and beam construction were springing up all over the warehouse district. These warehouses were part of a growing trade that supplied all of western Canada. A major problem the entrepreneurs were facing was Winnipeg's high fire insurance rates because of the limited ability of the fire department to fight fires.&lt;br /&gt;
&lt;br /&gt;
In 1905, Col. Ruttan proposed a dedicated fire protection system drawing water from the Red River at the foot of James Avenue. Council approved and directed him to complete the works. Ruttan partially designed the high pressure fire protection system in 1906 and supervised the construction to completion in 1908.&lt;br /&gt;
&lt;br /&gt;
::'''It is interesting to note that one of the largest fires was the J.H. Ashdown Hardware Store (Winnipeg’s merchant prince) on Main Street. In 1906 Ashdown won the city election for Mayor running on a platform recommending city ownership of utilities.'''&lt;br /&gt;
&lt;br /&gt;
== Col. Henry N. Ruttan: Winnipeg City Engineer ==&lt;br /&gt;
&lt;br /&gt;
Born in Ontario in 1848, Henry N. Ruttan learned engineering on the job with the Grand Trunk Railway starting in 1868. He also worked with Sanford Fleming, who was building the Intercolonial Railway. In the 1870’s he began a two year study of municipal engineering, and, after working for municipalities in Ontario, came to Winnipeg in 1880 to start his own engineering business. In 1885 he was appointed the City Engineer, a position he held until retirement in1914.&lt;br /&gt;
[[File:Ruttan.jpg|thumbnail|right|Lt. Col. Henry Norlande Ruttan, ca 1914. (Courtesy of the Provincial Archives of Manitoba, N5188)]]&lt;br /&gt;
&lt;br /&gt;
Ruttan was a staunch proponent of public ownership of utilities, including the City's own power system, quarry, and asphalt paving plant. He oversaw the infrastructure for a population growth from 16,000 in 1885 to 130,000 at his retirement.He was an active supporter of the engineering profession and a charter member of the Canadian Society of Civil Engineering and was its president in 1910.&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| There is no doubt H.N. Ruttan was a formidable engineer. In addition to his engineering exploits he maintained a parallel career in military service, ultimately becoming a Lieutenant-Colonel. He was a Captain in the Little Black Devils in 1883, served in the Saskatchewan Rebellion in 1885, and had already served against the Fenians in 1866. On 18th May 1910 he was recalled to command the recently re-named &amp;quot;100th Winnipeg Grenadiers&amp;quot;. Ruttan died in Winnipeg in 1925 at his home at 180 West Gate.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== The High Pressure System ==&lt;br /&gt;
The high pressure system to give fire protection for the large buildings in the downtown was built at a cost of $1million, largely borne by the businesses along the 12.8 km of high pressure mains. [With today’s purchasing power the cost would equal over $25M.] The mains and 70 hydrants were separate from the domestic water supply. The pumping system consisted of 3 main structures: the river intake and pumping station, the gas producing plant, and the gas storage tank. The design is a model for engineering with a careful view to reliability based on redundancy.  &lt;br /&gt;
&lt;br /&gt;
== James Avenue Pumping Station ==  &lt;br /&gt;
The pumping station building is 48 m by 28 m, steel frame, faced with buff coloured brick above a concrete substructure. The building is divided into 2 gabled bays, each having a crane running the length of the interior. The engine floor is 5.5 m below grade and the six pumps are in a trench below this. The pump suction and discharge header pipes are 600 mm diameter, in duplicate, all six pumps being connected to both pipes, either being sufficient capacity for the whole plant. The suction header is connected to a two compartment wet well. The water was conducted to the wet well by a 900 mm wood stave intake pipe that extended 130 m from the well to deep water in the river where a stone ballasted crib was located. In 1919 the station was connected to the new aqueduct, a source preferable to the muddy water of the Red River.&lt;br /&gt;
&lt;br /&gt;
The pumps are triplex double acting piston pumps. The water was pumped into the mains at a pressure of 2,109 kpa (300 psi). The pumps were supplied by W. Jacks and Company of Glasgow. The six 2-cylinder gas engines were built by Crossley Brothers of Manchester, England. The engines for the larger pumps were 402 kW (540 hp) each and for the smaller pumps, 186 kW (250 hp) each. Steam and electricity to power the pumps were out of the question due to high standby costs. Standby costs for the gas engines were minimal.Upon receipt of an alarm by telephone or fire box through the Central Fire Hall, the pressure automatically increased. Although the system consisted of a maze of valves, motors and pumps, all six pumps could be started and working to capacity in three and a half minutes from receiving a call.The first of the pumping units was placed in service in November 1907, and the remaining units were completed by July 1, 1908 when the whole plant was practically completed and the operation was taken over by the city.&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| &lt;br /&gt;
Much of the equipment for the James Avenue Station was supplied by theCrossley Brothers of Manchester, England. The twobrothers, Francis (1839-97) and William J.(1844-1911) set up in 1867. William concentrated onthe business side, Francis provided the engineering expertise. The brotherswere committed Christians and strictly ‘teetotal’. They wouldrefuse to supply their products to companies such as breweries, whom they didnot approve of. &lt;br /&gt;
One of their major contributions to manufacturing was theintroduction of the assembly line. TheCrossley system even influenced Henry Ford, whovisited the plant at the turn of the 20th century.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== Producer Gas System and Storage Tanks ==&lt;br /&gt;
&lt;br /&gt;
The gas producing plant was attached to the pumping station. Coal or coke was heated in 4 boilers to produce a gas under pressure. The gas was filtered, cooled, and piped to the gas storage tank east of the pumping station.The plant had four massive Crossley type producers: two 373 kW (500 hp), and two 745 kW (1000 hp), with the necessary platforms, hoppers and piping. The plant had an overload capacity of fifty percent with selected coal and could make gas from anthracite, lignite, or any non-caking bituminous coal. The coal was delivered on railway track adjoining the building and unloaded via a hopper. &lt;br /&gt;
&lt;br /&gt;
An elevator fitted with rotary feeding gear ensured regular feed without choking and raised the coal above the producer hoppers. The elevator and conveyor were operated by a steam engine. Two air super-heaters with gas and air connections and dust collectors were attached to the producers. Each unit was supplied with a hot gas tubular boiler.Four wet scrubbers, fitted with tar sieves and filled with coke, removed the condensable hydrocarbons from the gas. Three centrifugal tar extractors completed the removal of the tar from the gas.Two sawdust scrubbers, either of which was capable of removing any remaining impurities from the gas were placed near the inlet to the gas holder. &lt;br /&gt;
&lt;br /&gt;
In addition, centrifugal circulating pumps and Root air blowers were provided.The cleaning plant was operated by two 13.4 kW Crossley engines, either of which had capacity to drive the whole plant. An important feature of the installation was that there was a spare unit of each type of machine, so that in case of a breakdown, the plant could still be operated to its rated capacity. Two steam boilers furnished additional steam for the producer and also drove the elevator and blower engines, and supplied steam for heating the buildings.The gas holder and pumping station was connected with the city gas mains by a special 12” pipe for a full supply of gas should the producer gas system be out of service.The gas holder tank was steel with a facing of brick with the capacity to supply the pumps for from 1 ½ to 5 hours depending on the number of pumps running.&lt;br /&gt;
&lt;br /&gt;
== Distribution System == &lt;br /&gt;
Two 500 mm fire system water mains were installed from the pumping station to Main Street by different routes, connected with sub-mains on the way. Each main had the capacity to take the water from the pumps when working to their rated capacity. Approximately 12.8 km of high pressure mains and 70 hydrants were installed to protect the city core. The mains ran on Main Street from Higgins Ave. to the Assiniboine River and on Portage Ave. from the Red River to Osborne Street, and on other streets.The mains were designed for a working pressure of 2,109 kpa and the ability to withstand water hammer. The mains were tested at the foundry, and after installation were tested from 3,515 kpa to 4,922 kpa. The pipes were provided with extra heavy hubs and two lead grooves and operated entirely satisfactory.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The hydrant valves were provided with pilot valves to fill the hydrant before opening the main valve against the pressure. Both valves were operated by the same stem.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Impact on the City ==&lt;br /&gt;
The dedicated high pressure system was very successful and no building adjacent to a burning building was lost afterward due to a lack of water. As a result insurance rates declined and the City continued its dizzy expansion. It was said that the water pressure generated by the pumping station could reach the height of a three story building as far away as Portage Ave. and Sherbrook St. at the site of the newly formed Manitoba Government Telephones’ (MTS’s forerunner) large telephone exchange building being built to service the St James area (then outside the city of Winnipeg).&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== A HERITAGE PROJECT EVEN IN 1908 ==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
When it was constructed in 1908 the high pressure system was one of the largest, most sophisticated, in the world. It was one of only two high pressure fire fighting systems in North America. The British Association, held its 1909 annual meeting in Winnipeg, and the members arranged a ‘Visit to The City Water Works High Pressure Plant, Artesian Well System’ on Monday, August 30. The published invitation stated ‘Colonel H. N. Ruttan, City Engineer, has kindly consented to act as guide to the party’. For the visit,  he prepared an eight page description of the system entitled ‘Winnipeg’s Water Works’ which largely featured the high pressure pumping station and fire fighting system. [The British Association rarely travelled outside of the UK for its annual meetings and in 1909 it would have been a long and arduous journey.]In 1910, Col. Ruttan presented a paper on the innovative project at the AWWA (American Water Works Association) Convention in New Orleans which was published in the Conference Proceedings. &lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| The Association of Professional Engineers, APEM at the time, considered taking the building over as a combination museum and office space in 1990. Commissioning an architectural feasibility study on the concept. For various reasons, mostly funding, it never materialized. &lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== Today: A Grade II heritage building still looking for a tenant ==&lt;br /&gt;
&lt;br /&gt;
The gas producing plant and storage tank were demolished in 1962 when the pump engines were converted to natural gas and electricity. The pumping station was taken out of service in 1986, a victim of high operating costs, deteriorating water mains and modern pumper trucks that offer firefighters greater flexibility. But not before the station had been declared a Grade II heritage building by the Winnipeg Planning, Property, &amp;amp; Development department in 1982. &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
After the building was shut down in 1986 it was given to Winnipeg’s CentreVenture corporation for development. CentreVenture sold it in 2001, including the original equipment and machinery, for $159,000. Later, CentreVenture had a change of heart after a nightclub was proposed for the building, and bought it back for $750,000. The most recent proposed use occurred in April 2010 when the press reported a market garden organization was contemplating using the lot for an outdoor market in the summer and the building for an indoor market in winter. To date it remains undeveloped minus a large piece of machinery which the interim owners donated to a heritage museum in Austin.&lt;br /&gt;
&lt;br /&gt;
== What Can We Learn? ==  &lt;br /&gt;
The James Avenue Pumping Station has lessons for all of us, as engineers and geoscientists in today’s hurly burly fast paced world. Here are some that come into the Heritage Committee’s collective thoughts:&lt;br /&gt;
&lt;br /&gt;
#	Our forefathers were not shirkers –they showed determination and persistence. &lt;br /&gt;
#	They were far sighted and confident of the impact that good infrastructure could have on the growth of the city.&lt;br /&gt;
#	Private-Public partnerships are not new, 80% of the cost was raised by the merchants that the system ultimately protected.&lt;br /&gt;
#	Planned obsolescence was not in their DNA; to build in 1908 and have it operate, with small modifications, for close to eighty years shows vision. As always, the Heritage Committee would be pleased to hear from anyone on this and any other engineering or geoscience story that highlights the contributions of the professions to the quality of life in Manitoba.  &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
* The Manitoba Historical Society published an article on the pumping Station: Firewater - The James Avenue Pumping Station – Manitoba History, Number 13, Spring 1987.&lt;br /&gt;
* The Western Canada ‘Water’ published the article ‘Looking Back: Waterworks in the Early 20th Century, Winnipeg’s James Avenue fire service pumping station’, Winter 2009, by Bill Brant, Genivar.&lt;/div&gt;</summary>
		<author><name>Cnowell</name></author>
	</entry>
	<entry>
		<id>https://enggeomb-heritage.a2hosted.com/index.php?title=James_Avenue_Pumping_Station&amp;diff=426</id>
		<title>James Avenue Pumping Station</title>
		<link rel="alternate" type="text/html" href="https://enggeomb-heritage.a2hosted.com/index.php?title=James_Avenue_Pumping_Station&amp;diff=426"/>
		<updated>2013-09-09T23:39:40Z</updated>

		<summary type="html">&lt;p&gt;Cnowell: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Introduction ==&lt;br /&gt;
As a means of celebrating the role of engineering and geoscience in the 91st year of APEGM's history, the Heritage Committee is writing a series of articles that link water to the economic and social development of the province. The first article described the relationship between commerce and water before the Association was formed. This article is a follow-up to the summer 2010 article on Winnipeg’s water supply as it related to health and welfare. This is the story of the historic James Avenue Pumping Station, part of Winnipeg’s early water supply system.A safe clean and abundant water supply is essential to public health. It is also important for the protection of persons and property from fires. The value to the economy is reflected in many ways; the key in this case, was reduced insurance costs.&lt;br /&gt;
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&amp;lt;gallery&amp;gt;&lt;br /&gt;
File:JAinterior1980.jpg&lt;br /&gt;
File:JAexterior1980.jpg&lt;br /&gt;
File:JAinterior1906.jpg&lt;br /&gt;
File:Fire1921.jpg&lt;br /&gt;
&amp;lt;/gallery&amp;gt;&lt;br /&gt;
&lt;br /&gt;
== Summary == &lt;br /&gt;
Winnipeg’s first water system began in 1882 when a private company, Winnipeg Water Works Co., drew water from the Assiniboine River and distributed water by pipes to homes and businesses in the city core. The company’s intake and pumping facilities were on the north bank of the Assiniboine River at the Maryland Bridge. However, fire protection for the mainly wood buildings was inadequate, resulting in loss of life and property, and high insurance costs. In 1899, the City of Winnipeg purchased the system and began to use artesian wells rather than the foul river water. In 1904 a serious fire on Main Street threatened the entire business district and forced the City to pump Assiniboine River water into the mains.  The contaminated water resulted in a typhoid epidemic with 1300 cases reported in the following days. Winnipeg was experiencing an economic and population boom during the 1890’s through the 1920’s. Shortly after the 1904 fire, the Fire Underwriters’ Association reported to Council that ‘the city would find itself deficient of 3 million gallons of water based on the present rate of service, with over half the homes not yet serviced by water mains’. The City’s groundwater pumping station and 6.3 million gallon reservoir was located on McPhillips Street near Logan Avenue, three kilometres from the business district. In 1905 a new 10 million litre per day well was dug but with the rapid population growth the supply was still inadequate. There was also a concern about drawing the water table down below the river level and thereby introducing contamination.While studies were undertaken on ways to develop an abundant supply of fresh, safe, potable water, City Council directed its engineer, Col. Henry Ruttan ‘to determine a long term solution to providing the rapidly growing business district with adequate fire protection in a manner which would not impair public health’. Large warehouses with wooden post and beam construction were springing up all over the warehouse district. These warehouses were part of a growing trade that supplied all of western Canada. A major problem the entrepreneurs were facing was Winnipeg's high fire insurance rates because of the limited ability of the fire department to fight fires.&lt;br /&gt;
&lt;br /&gt;
In 1905, Col. Ruttan proposed a dedicated fire protection system drawing water from the Red River at the foot of James Avenue. Council approved and directed him to complete the works. Ruttan partially designed the high pressure fire protection system in 1906 and supervised the construction to completion in 1908.&lt;br /&gt;
&lt;br /&gt;
::'''It is interesting to note that one of the largest fires was the J.H. Ashdown Hardware Store (Winnipeg’s merchant prince) on Main Street. In 1906 Ashdown won the city election for Mayor running on a platform recommending city ownership of utilities.'''&lt;br /&gt;
&lt;br /&gt;
== Col. Henry N. Ruttan: Winnipeg City Engineer ==&lt;br /&gt;
&lt;br /&gt;
Born in Ontario in 1848, Henry N. Ruttan learned engineering on the job with the Grand Trunk Railway starting in 1868. He also worked with Sanford Fleming, who was building the Intercolonial Railway. In the 1870’s he began a two year study of municipal engineering, and, after working for municipalities in Ontario, came to Winnipeg in 1880 to start his own engineering business. In 1885 he was appointed the City Engineer, a position he held until retirement in1914.&lt;br /&gt;
[[File:Ruttan.jpg|thumbnail|right|Lt. Col. Henry Norlande Ruttan, ca 1914. (Courtesy of the Provincial Archives of Manitoba, N5188)]]&lt;br /&gt;
&lt;br /&gt;
Ruttan was a staunch proponent of public ownership of utilities, including the City's own power system, quarry, and asphalt paving plant. He oversaw the infrastructure for a population growth from 16,000 in 1885 to 130,000 at his retirement.He was an active supporter of the engineering profession and a charter member of the Canadian Society of Civil Engineering and was its president in 1910.&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| There is no doubt H.N. Ruttan was a formidable engineer. In addition to his engineering exploits he maintained a parallel career in military service, ultimately becoming a Lieutenant-Colonel. He was a Captain in the Little Black Devils in 1883, served in the Saskatchewan Rebellion in 1885, and had already served against the Fenians in 1866. On 18th May 1910 he was recalled to command the recently re-named &amp;quot;100th Winnipeg Grenadiers&amp;quot;. Ruttan died in Winnipeg in 1925 at his home at 180 West Gate.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== THE HIGH PRESSURE SYSTEM ==&lt;br /&gt;
The high pressure system to give fire protection for the large buildings in the downtown was built at a cost of $1million, largely borne by the businesses along the 12.8 km of high pressure mains. [With today’s purchasing power the cost would equal over $25M.] The mains and 70 hydrants were separate from the domestic water supply. The pumping system consisted of 3 main structures: the river intake and pumping station, the gas producing plant, and the gas storage tank. The design is a model for engineering with a careful view to reliability based on redundancy.  &lt;br /&gt;
&lt;br /&gt;
== James Avenue Pumping Station ==  &lt;br /&gt;
The pumping station building is 48 m by 28 m, steel frame, faced with buff coloured brick above a concrete substructure. The building is divided into 2 gabled bays, each having a crane running the length of the interior. The engine floor is 5.5 m below grade and the six pumps are in a trench below this. The pump suction and discharge header pipes are 600 mm diameter, in duplicate, all six pumps being connected to both pipes, either being sufficient capacity for the whole plant. The suction header is connected to a two compartment wet well. The water was conducted to the wet well by a 900 mm wood stave intake pipe that extended 130 m from the well to deep water in the river where a stone ballasted crib was located. In 1919 the station was connected to the new aqueduct, a source preferable to the muddy water of the Red River.&lt;br /&gt;
&lt;br /&gt;
The pumps are triplex double acting piston pumps. The water was pumped into the mains at a pressure of 2,109 kpa (300 psi). The pumps were supplied by W. Jacks and Company of Glasgow. The six 2-cylinder gas engines were built by Crossley Brothers of Manchester, England. The engines for the larger pumps were 402 kW (540 hp) each and for the smaller pumps, 186 kW (250 hp) each. Steam and electricity to power the pumps were out of the question due to high standby costs. Standby costs for the gas engines were minimal.Upon receipt of an alarm by telephone or fire box through the Central Fire Hall, the pressure automatically increased. Although the system consisted of a maze of valves, motors and pumps, all six pumps could be started and working to capacity in three and a half minutes from receiving a call.The first of the pumping units was placed in service in November 1907, and the remaining units were completed by July 1, 1908 when the whole plant was practically completed and the operation was taken over by the city.&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| &lt;br /&gt;
Much of the equipment for the James Avenue Station was supplied by theCrossley Brothers of Manchester, England. The twobrothers, Francis (1839-97) and William J.(1844-1911) set up in 1867. William concentrated onthe business side, Francis provided the engineering expertise. The brotherswere committed Christians and strictly ‘teetotal’. They wouldrefuse to supply their products to companies such as breweries, whom they didnot approve of. &lt;br /&gt;
One of their major contributions to manufacturing was theintroduction of the assembly line. TheCrossley system even influenced Henry Ford, whovisited the plant at the turn of the 20th century.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== Producer Gas System and Storage Tanks ==&lt;br /&gt;
&lt;br /&gt;
The gas producing plant was attached to the pumping station. Coal or coke was heated in 4 boilers to produce a gas under pressure. The gas was filtered, cooled, and piped to the gas storage tank east of the pumping station.The plant had four massive Crossley type producers: two 373 kW (500 hp), and two 745 kW (1000 hp), with the necessary platforms, hoppers and piping. The plant had an overload capacity of fifty percent with selected coal and could make gas from anthracite, lignite, or any non-caking bituminous coal. The coal was delivered on railway track adjoining the building and unloaded via a hopper. &lt;br /&gt;
&lt;br /&gt;
An elevator fitted with rotary feeding gear ensured regular feed without choking and raised the coal above the producer hoppers. The elevator and conveyor were operated by a steam engine. Two air super-heaters with gas and air connections and dust collectors were attached to the producers. Each unit was supplied with a hot gas tubular boiler.Four wet scrubbers, fitted with tar sieves and filled with coke, removed the condensable hydrocarbons from the gas. Three centrifugal tar extractors completed the removal of the tar from the gas.Two sawdust scrubbers, either of which was capable of removing any remaining impurities from the gas were placed near the inlet to the gas holder. &lt;br /&gt;
&lt;br /&gt;
In addition, centrifugal circulating pumps and Root air blowers were provided.The cleaning plant was operated by two 13.4 kW Crossley engines, either of which had capacity to drive the whole plant. An important feature of the installation was that there was a spare unit of each type of machine, so that in case of a breakdown, the plant could still be operated to its rated capacity. Two steam boilers furnished additional steam for the producer and also drove the elevator and blower engines, and supplied steam for heating the buildings.The gas holder and pumping station was connected with the city gas mains by a special 12” pipe for a full supply of gas should the producer gas system be out of service.The gas holder tank was steel with a facing of brick with the capacity to supply the pumps for from 1 ½ to 5 hours depending on the number of pumps running.&lt;br /&gt;
&lt;br /&gt;
== Distribution System == &lt;br /&gt;
Two 500 mm fire system water mains were installed from the pumping station to Main Street by different routes, connected with sub-mains on the way. Each main had the capacity to take the water from the pumps when working to their rated capacity. Approximately 12.8 km of high pressure mains and 70 hydrants were installed to protect the city core. The mains ran on Main Street from Higgins Ave. to the Assiniboine River and on Portage Ave. from the Red River to Osborne Street, and on other streets.The mains were designed for a working pressure of 2,109 kpa and the ability to withstand water hammer. The mains were tested at the foundry, and after installation were tested from 3,515 kpa to 4,922 kpa. The pipes were provided with extra heavy hubs and two lead grooves and operated entirely satisfactory.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The hydrant valves were provided with pilot valves to fill the hydrant before opening the main valve against the pressure. Both valves were operated by the same stem.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Impact on the City ==&lt;br /&gt;
The dedicated high pressure system was very successful and no building adjacent to a burning building was lost afterward due to a lack of water. As a result insurance rates declined and the City continued its dizzy expansion. It was said that the water pressure generated by the pumping station could reach the height of a three story building as far away as Portage Ave. and Sherbrook St. at the site of the newly formed Manitoba Government Telephones’ (MTS’s forerunner) large telephone exchange building being built to service the St James area (then outside the city of Winnipeg).&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== A HERITAGE PROJECT EVEN IN 1908 ==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
When it was constructed in 1908 the high pressure system was one of the largest, most sophisticated, in the world. It was one of only two high pressure fire fighting systems in North America. The British Association, held its 1909 annual meeting in Winnipeg, and the members arranged a ‘Visit to The City Water Works High Pressure Plant, Artesian Well System’ on Monday, August 30. The published invitation stated ‘Colonel H. N. Ruttan, City Engineer, has kindly consented to act as guide to the party’. For the visit,  he prepared an eight page description of the system entitled ‘Winnipeg’s Water Works’ which largely featured the high pressure pumping station and fire fighting system. [The British Association rarely travelled outside of the UK for its annual meetings and in 1909 it would have been a long and arduous journey.]In 1910, Col. Ruttan presented a paper on the innovative project at the AWWA (American Water Works Association) Convention in New Orleans which was published in the Conference Proceedings. &lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| The Association of Professional Engineers, APEM at the time, considered taking the building over as a combination museum and office space in 1990. Commissioning an architectural feasibility study on the concept. For various reasons, mostly funding, it never materialized. &lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== Today: A Grade II heritage building still looking for a tenant ==&lt;br /&gt;
&lt;br /&gt;
The gas producing plant and storage tank were demolished in 1962 when the pump engines were converted to natural gas and electricity. The pumping station was taken out of service in 1986, a victim of high operating costs, deteriorating water mains and modern pumper trucks that offer firefighters greater flexibility. But not before the station had been declared a Grade II heritage building by the Winnipeg Planning, Property, &amp;amp; Development department in 1982. &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
After the building was shut down in 1986 it was given to Winnipeg’s CentreVenture corporation for development. CentreVenture sold it in 2001, including the original equipment and machinery, for $159,000. Later, CentreVenture had a change of heart after a nightclub was proposed for the building, and bought it back for $750,000. The most recent proposed use occurred in April 2010 when the press reported a market garden organization was contemplating using the lot for an outdoor market in the summer and the building for an indoor market in winter. To date it remains undeveloped minus a large piece of machinery which the interim owners donated to a heritage museum in Austin.&lt;br /&gt;
&lt;br /&gt;
== What Can We Learn? ==  &lt;br /&gt;
The James Avenue Pumping Station has lessons for all of us, as engineers and geoscientists in today’s hurly burly fast paced world. Here are some that come into the Heritage Committee’s collective thoughts:&lt;br /&gt;
&lt;br /&gt;
#	Our forefathers were not shirkers –they showed determination and persistence. &lt;br /&gt;
#	They were far sighted and confident of the impact that good infrastructure could have on the growth of the city.&lt;br /&gt;
#	Private-Public partnerships are not new, 80% of the cost was raised by the merchants that the system ultimately protected.&lt;br /&gt;
#	Planned obsolescence was not in their DNA; to build in 1908 and have it operate, with small modifications, for close to eighty years shows vision. As always, the Heritage Committee would be pleased to hear from anyone on this and any other engineering or geoscience story that highlights the contributions of the professions to the quality of life in Manitoba.  &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
* The Manitoba Historical Society published an article on the pumping Station: Firewater - The James Avenue Pumping Station – Manitoba History, Number 13, Spring 1987.&lt;br /&gt;
* The Western Canada ‘Water’ published the article ‘Looking Back: Waterworks in the Early 20th Century, Winnipeg’s James Avenue fire service pumping station’, Winter 2009, by Bill Brant, Genivar.&lt;/div&gt;</summary>
		<author><name>Cnowell</name></author>
	</entry>
</feed>