Lakes & Rivers
The Grand River Dam Authority is an agency of the state of Oklahoma, created by the Oklahoma Legislature in 1935 to be a “conservation and reclamation district for the waters of the Grand River.”
GRDA manages over 70,000 surface acres of water in Northeast Oklahoma.
Pensacola Lake Level
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Hudson Lake Level
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On July 1, 2016, the Grand River Dam Authority absorbed the mission and responsibilities of the Oklahoma Scenic Rivers Commission (OSRC). That mission is to protect, enhance, and preserve the outstanding aesthetic, historic, archaeological and scientific features of the Illinois River and its tributaries (Lee Creek, Little Lee Creek, Barren Fork Creek, Flint Creek, and the Upper Mountain Fork).