![]() ![]() Katepwa Lake Outlet – Ditch Section 1K, 1K1, 1K2, & 1K3 8.1 km Emma Lake Diversion Channel Mission Lake to Katepwa Lake – Ditch Section 1M 1.0 km 6 to Pasqua Lake – Ditch Sections 1A, 2A, 2A’, 3A & 1L 43.2 kmĮcho Lake to Mission Lake – Ditch Sections 1E & 2E 0.6 km 6 and Craven were not constructed, significantly greater operational flexibility resulted from construction that did occur.Ĭraven to Hwy No. Although a number of contemplated channel improvements between Highway No. The primary objective of the works was to upgrade the natural conveyance capacity to14.16 m 3/s (500 cfs). The Water Security Agency is wholly responsible for these works. ![]() In total, 54.3 km of channel improvements were constructed along the Qu’Appelle River and its principal tributaries. Over an 11 year period extending from 1978 to 1988, extensive channel improvements were constructed between Craven and a location 7.4 km below Katepwa Lake. The Water Security Agency is also committed to sharing the costs of maintaining the flood control dykes in accordance with the Water Control Program in effect at the time of maintenance. Pursuant to an agreement entered into between the Village and Sask Water in 1993, the Water Security Agency is fully responsible for the channel improvements. The Craven Flood Control Project, encompassing the construction of 1.9 km of improved channel and associated dyking along Last Mountain Lake Creek, was undertaken in the 1971. In the early 1980’s, a further 5.5 km of conveyance improvements were constructed along Last Mountain Lake Creek to enhance operation management capabilities of the Qu’Appelle System. ![]() 20 near Craven in 1978, a 1.0 km long diversion channel was constructed the same year between the river and Last Mountain Lake Creek to restore the natural flow split between Last Mountain Lake and the river downstream of Craven. Craven to Last Mountain Lakeįollowing the 0.46 m raising of Highway No. The Water Security Agency is wholly responsible for the repair of the diversion channel. In addition to enhancing flood control benefits, such diversions also assist in stabilizing Rafferty Reservoir levels.Īlthough the nameplate capacity of the diversion channel is 60 m 3/s, diversions in excess of 45 m 3/s cause excessive erosion to the rock chute drop structure discharging into Rafferty Reservoir. This canal affords the ability to divert surplus flows in Long Creek which can not be stored in Boundary Reservoir, to Rafferty Reservoir. To maximize flood control benefits associated with the Rafferty-Alameda Project, a 10.9 km long diversion canal was constructed from Boundary Reservoir to Rafferty Reservoir. Water Conveyance & Flood Controls Boundary to Rafferty Diversion Channel ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |