The U.S. Army Corps of Engineers, Tulsa District awarded a construction contract to replace the State Highway 251A bridge over Fort Gibson Dam near Fort Gibson, Okla., Dec. 15.<br />
Tulsa District awarded $63.8 million contract to Alberici Constructors, of St. Louis.<br />
The Tulsa District closed the Hwy 251A bridge, which spans the Fort Gibson Dam spillway over the Grand-Neosho River, April 22, 2025 after a bridge safety inspection identified critical findings.<br />
The construction contract calls for demolition and replacement of the bridge. The SH-251A bridge was constructed concurrent with the Fort Gibson Dam from 1942 to 1949.<br />
Tulsa District will provide updates as the bridge replacement project progresses.
12.15.2025 | FORT GIBSON, OKLAHOMA, US |
Story by Brannen Parrish
The spillway below Fort Gibson Dam near Fort Gibson, Okla.,, Dec. 10, 2025. Tulsa District awarded a contract to replace the State Highway 251A bridge over the dam, Dec. 15, 2025. Courtesy Photo by Raymond Todd, USACE.
The Army Corps of Engineers is designing a low water dam on the Arkansas River near Sand Springs, Oklahoma as part of the Arkansas River Corridor Project. The Dam Safety Production Center began conducting anchor testing late in the summer of 2025. The Arkansas River Corridor Project will promote water quality, ecosystem restoration, and recreation opportunities.
Anchor testing gives engineers an idea of how well the earth beneath the structure will bond with the foundation, and ensures the project remains in place during flooding.
"The rock isn't always the same in one location versus another. We have a general idea of how this rock would behave from Keystone Dam, just up the road, but to ensure that the localized geology isn't...
