Canada utility seeks dam safety spillway rehab design for 67-MW Slave Falls hydro project

Manitoba Hydro seeks bids to design the dam safety rehabilitation of a spillway of the 67-MW Slave Falls hydroelectric project on the Winnipeg River in Manitoba. A mandatory site visit is scheduled Sept. 19 with bids due Sept. 26.

Great Falls is among a half-dozen Manitoba Hydro generating stations on the Winnipeg River. Units at Slave Falls are taken down every two years for maintenance.

Manitoba Hydro seeks design services for replacement or repair of the Slave Falls Creek spillway to safely retain the forebay and to meet Canadian Dam Association guidelines. The utility estimated the total project to cost C$10.7 million (US$9.7 million).

The work is recommended to prevent failure of the structure to retain water through the failure of one or more piers or gate sections resulting in uncontrolled release of water. Failure would endanger recreational users and project staff and could damage plant control and protection cabling.

The solicitation may be obtained from the Canadian Public Tenders Internet site under A mandatory site visit is scheduled for 9 a.m., Central time, Sept. 19.

Bids are due by 4 p.m., Central time, Sept. 26. For information, contact Manitoba Hydro, Purchasing Dept., P.O. Box 1287 STN MAIN, Winnipeg, MB R3C 2Z1 Canada; Fax: (1) 204-360-6130; E-mail:; Internet:

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