Tainter gate repair contract awarded for Dexter dam and hydro project in Oregon

The U.S. Army Corps of Engineers has awarded an $11.15 million contract to Washington-based Knight Construction & Supply Inc. for repair of spillway tainter gates at 15-MW Dexter dam and hydro project on the Willamette River in Oregon.

Dexter Dam is one of 13 dams in northwestern Oregon’s Willamette River Basin, including eight hydroelectric projects operated by the Corps.

The Corps’ Portland District seeks repairs to two 50-ton tainter gates. Work is to include replacement of the entire end frame arm assembly and fabrication of new trunnions, as well as replacement of wire ropes, bridge sockets, U-bolts, pins, gate connection and all related items.

Recently, the Bureau of Reclamation awarded Knight Construction & Supply Inc. a $1.5 million contract for modifications to a wheel-mounted gate servicing chamber in the Third Powerplant at the 6,809-MW Grand Coulee hydroelectric project.

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