Boundary Dam Reservoir

Boundary Dam Reservoir is a man-made lake in the south-east corner of the Canadian province of Saskatchewan. It is in census division 1, in the RM of Estevan. The closest city is Estevan, which is about 5.5 kilometres (3.4 mi) downstream. There are no towns or villages along the lake's shore but there are two subdivisions and a regional park. The subdivisions, which are in the RM of Estevan, are called Sunset Bay and Lakewood. The primary inflow and outflow for the reservoir is Long Creek. There is a 10-kilometre long diversion channel that goes to McDonald Lake that can take excess water in either direction.[2][3]

Boundary Dam Reservoir
Boundary Dam Reservoir
Boundary Dam Reservoir is located in Saskatchewan
Boundary Dam Reservoir
Boundary Dam Reservoir
Location in Saskatchewan
Boundary Dam Reservoir is located in Canada
Boundary Dam Reservoir
Boundary Dam Reservoir
Boundary Dam Reservoir (Canada)
LocationRM of Estevan No. 5, Saskatchewan
Coordinates49.0501°N 103.0338°W / 49.0501; -103.0338
TypeReservoir
Primary inflowsLong Creek
River sourcesLong Creek
Primary outflowsLong Creek, and a 10-kilometre diversion channel connecting Boundary and Rafferty Reservoirs, which allows water to be diverted from Boundary Reservoir into McDonald Lake
Managing agencySaskPower
Built1957 (1957)
First flooded1957 (1957)
Surface area668 ha (1,650 acres)
Max. depth15 m (49 ft)
Water volume61,480 dam (2,017,100 ft)
Shore length136.3 km (22.6 mi)
Surface elevation560 m (1,840 ft)
References[1]
1 Shore length is not a well-defined measure.

Boundary Dam

The Boundary Dam was built in 1957 on Long Creek so that a reservoir could supply water to the Boundary Dam Power Station and the city of Estevan. The top of the dam is 563.88 m (1,850.0 ft) above sea level. The full supply level is at 560 metres, which gives the reservoir 61,480 dam (2,017,100 ft) when full. The maximum drawdown is 557.8 m (1,830 ft), which gives it 16,755 dam (549,700 ft) of flood control storage. The reservoir, though, is not intended for flood control as its value is in the water it supplies to the power station.

A three year project, that ran from 2017 to 2020, changed the city of Estevan's water supply from Boundary Reservoir to McDonald Lake.[4]

Woodlawn Regional Park
Main Beach at Woodlawn-Boundary Dam

Woodlawn Regional Park (49.1147°N 102.9857°W / 49.1147; -102.9857) is on the north-east shore of the reservoir.[5][6] The park is actually divided into two sections. The original section, which is along the Souris River just south of Estevan, was founded in 1962. It features full-service camping, TS & M 18-hole golfing,[7] Kayaking and Canoeing, live outdoor theatre,[8] hiking, ball diamonds, and many more outdoor activities. In 2011, an historic flood nearly destroyed the park as silt was piled up eight feet in areas and parts of the river had widened by up to 50 feet.

In 2009, Woodlawn acquired the Boundary Dam portion of the park. This area features full-service camping, a beach area, a boat launch, professional beach volleyball courts, and the annual Beach Bash held each year in August. Boundary Dam Reservoir is the only lake in Saskatchewan that has a large area that does not freeze over in the winter due to warm water being returned to the lake from the Boundary Dam Power Station. This means that this is the only lake in Saskatchewan that supports largemouth bass.[9]

See also

References
  1. Government of Canada, Natural Resources Canada. "Place names - Boundary Dam Reservoir". www4.rncan.gc.ca.
  2. Government of Canada, Natural Resources Canada. "Place names - Long Creek". www4.rncan.gc.ca.
  3. "Boundary Reservoir Fishing Map". GPS Nautical Charts. Bist LLC. Retrieved 13 September 2023.
  4. Florizone, Alaura. "Ceremony for the New Waterline at Rafferty Dam". Discoverestevan.com.
  5. "Boundary Dam Reservoir Recreation Site". Canadian Geographical Names Database. Government of Canada. Retrieved 18 January 2023.
  6. "Woodlawn Regional Park | Estevan". Woodlawn.
  7. "Public Home Page - TS&M Woodlawn Golf Club". estevangolf.com.
  8. "Home". www.sourisvalleytheatre.ca.
  9. "Largemouth Bass". City of Estevan.
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