The U.S. Army Corps of Engineers, Tulsa District awarded an architecture and engineering contract to Stantec Consulting Services, Incorporated of Edmonton, Alberta., Sept. 11.<br />
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The $3.5 million contract calls for a geotechnical survey of the Keystone Dam stilling basin. The stilling basin is a hydraulic structure that reduces the velocity of water during flood releases to reduce erosion and damages.<br />
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Keystone Dam is one of 38 civil works projects the Tulsa District operates and maintains in Oklahoma, Kansas and Texas. <br />
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Keystone Dam's authorized purposes include flood control, hydroelectric power, navigation, water supply, recreation, and fish and wildlife.
Close up of the repaired hatch cover on State Highway 151 on the road over Keystone Dam in Sand Springs, Okla., Sept. 12, 2025. Both lanes reopened Sept. 12, 2025. Damage to the hatch resulted in a road closure, Sept. 9. (Courtesy Photo by Tom Henry, USACE)
The Tulsa District, U.S. Army Corps of Engineers will close both lanes of the State Highway 151 bridge over Keystone Dam, Sept. 9 to Sept. 17.
During this time, crews will repair a damaged hatch cover that forced one lane on the bridge of SH-151 to close, Aug. 14.
