Summer greetings from GRDA
As a proud member of 26 chambers of commerce, economic development and marketing associations across Oklahoma, the Grand River Dam Authority is right at home in Oklahoma hometowns. Whether those communities are located around the lakes GRDA manages or they are the public power communities that receive reliable, abundant GRDA wholesale electricity, the Authority’s connections […]
Floodwater Release Bulletin
At 10:45 AM on Thursday, June 26: Grand Lake elevation was 750.88 feet. At the direction of the United States Army Corps of Engineers, one east spillway gate was open at Pensacola Dam, discharging 314 cubic feet per second (cfs) of water. Six units were online at the Pensacola Dam powerhouse, releasing 13,560 cfs of […]
Floodwater Release Bulletin
At 8:30 AM on Wednesday, June 25: Grand Lake elevation was 750.99 feet. At the direction of the United States Army Corps of Engineers, one main spillway gate and one east spillway gate was open at Pensacola Dam, discharging 1,558 cubic feet per second (cfs) of water. Six units were online at the Pensacola Dam […]
Pensacola Dam Tours
As a reminder, the Grand River Dam Authority is no longer able to offer free walk-up tours of historic Pensacola Dam. However, some pre-arranged tours are still offered for groups of 10 or more, Monday – Friday between 8AM and 4PM. Please contact jacklyn.smittle@grda.com, (918) 981-8473 for more information. While the walk-up tours are no […]
Floodwater Release Bulletin
At noon on Monday, June 23: Grand Lake elevation was 751.52 feet. At the direction of the United States Army Corps of Engineers, one main spillway gate and one east spillway gate was open at Pensacola Dam, discharging 5,723 cubic feet per second (cfs) of water. Six units were online at the Pensacola Dam powerhouse, […]
All advisories for both the Illinois River and Lake Hudson have been removed
2:20 PM Update: The Grand River Dam Authority Ecosystems and Watershed Management Department is announcing that E. Coli advisories have been removed from the Combs Bridge, Chewey Bridge and Tahlequah (Highway 62) areas of the Illinois River, as well as the advisory from Lake Hudson. Currently, no GRDA controlled waters are under an E.Coli advisory […]
GRDA Update: E. Coli advisories dropped for Illinois River
The Grand River Dam Authority Ecosystems and Watershed Management Department is announcing that E. Coli advisories have been removed from the Combs Bridge, Chewey Bridge and Tahlequah (Highway 62) areas of the Illinois River. Testing conducted in the department’s lab on Saturday, June 21, confirmed that E.Coli levels have now dropped below the advisory level. […]
GRDA issuing E. coli advisory for areas of Hudson Lake and the Illinois River
Due to elevated levels of E. coli, resulting from recent heavy rains and water flows, the Grand River Dam Authority is issuing an advisory for several areas of the waters under its control. On Friday, June 20, water samples collected from Lake Hudson and the Illinois River areas confirmed the presence of high levels of […]
Floodwater Release Bulletin
At 12:15 PM on Friday, June 20: Grand Lake elevation was 752.78 feet. At the direction of the United States Army Corps of Engineers, one main spillway gate and one east spillway gate was open at Pensacola Dam, discharging 20,856 cubic feet per second (cfs) of water. Six units were online at the Pensacola Dam […]
2025 July Board Meeting
The July board meeting will be held on Wednesday the 9th at 10:00 a.m. at the GRDA Administrative Building in Chouteau, Ok. Proposed Agenda Final Agenda