Sooner Lake Sooner Lake Sooner Lake is a reservoir in Pawnee and Noble counties in the U.S. state of Oklahoma. It was built in 1972 to serve as a reservoir of cooling water for a coal-fired power generation plant owned by Oklahoma Gas and Electric Company (OG&E). The plant is at the northwest end of the lake. The normal elevation is . Maximum depth is and average depth is . The lake covers and has a water capacity of . The shoreline is long. The lake is not far from the Arkansas River. It was originally filled by pumping water from the
Georgia State Route 300 in a different part of the state, was much shorter, traveling from Monticello to a point northeast of Monticello (and about north of Eatonton), and existed from the 1960s to the 1980s. SR 300 begins at the Florida state line, where it is concurrent with US 19. On the Florida side of the state line, US 19 is concurrent with Florida State Road 57 (SR 57, which is unsigned), and is known as the Florida–Georgia Parkway. At the state line, SR 3 and SR 300 begin. US 19/SR 3/SR 300 head northwest until they enter Thomasville. In the city, they