<Table> <Tr> <Th_colspan="2"> Bagnell Dam </Th> </Tr> <Tr> <Td_colspan="2"> Bagnell Dam </Td> </Tr> <Tr> <Th> Country </Th> <Td> United States </Td> </Tr> <Tr> <Th> Location </Th> <Td> Missouri </Td> </Tr> <Tr> <Th> Coordinates </Th> <Td> 38 ° 12 ′ 08" N 92 ° 37 ′ 37" W ﻿ / ﻿ 38.20222 ° N 92.62694 ° W ﻿ / 38.20222; - 92.62694 Coordinates: 38 ° 12 ′ 08" N 92 ° 37 ′ 37" W ﻿ / ﻿ 38.20222 ° N 92.62694 ° W ﻿ / 38.20222; - 92.62694 </Td> </Tr> <Tr> <Th> Purpose </Th> <Td> Hydroelectric </Td> </Tr> <Tr> <Th> Construction began </Th> <Td> 1929 </Td> </Tr> <Tr> <Th> Opening date </Th> <Td> 1931 </Td> </Tr> <Tr> <Th> Owner (s) </Th> <Td> AmerenUE </Td> </Tr> <Tr> <Th_colspan="2"> Dam and spillways </Th> </Tr> <Tr> <Th> Type of dam </Th> <Td> Concrete gravity </Td> </Tr> <Tr> <Th> Impounds </Th> <Td> Osage River </Td> </Tr> <Tr> <Th> Height (foundation) </Th> <Td> 148 ft (45 m) </Td> </Tr> <Tr> <Th> Length </Th> <Td> 2,543 ft (775 m) </Td> </Tr> <Tr> <Th> Spillway type </Th> <Td> Gated overflow </Td> </Tr> <Tr> <Th_colspan="2"> Reservoir </Th> </Tr> <Tr> <Th> Creates </Th> <Td> Lake of the Ozarks </Td> </Tr> <Tr> <Th> Total capacity </Th> <Td> 1,927,000 acre ⋅ ft (2.377 km) </Td> </Tr> <Tr> <Th> Active capacity </Th> <Td> 468,000 acre ⋅ ft (0.577 km) </Td> </Tr> <Tr> <Th> Catchment area </Th> <Td> 13,944 sq mi (36,110 km) </Td> </Tr> <Tr> <Th> Surface area </Th> <Td> 54,000 acres (22,000 ha) </Td> </Tr> <Tr> <Th> Normal elevation </Th> <Td> 660 ft (200 m) max </Td> </Tr> <Tr> <Th_colspan="2"> Osage Powerplant </Th> </Tr> <Tr> <Th> Type </Th> <Td> Conventional </Td> </Tr> <Tr> <Th> Hydraulic head </Th> <Td> 90 ft (27 m) </Td> </Tr> <Tr> <Th> Turbines </Th> <Td> Main: 8x 21.5 MW (33,500 HP) Francis Station service: 2x 2.0 MW (3,025 HP) Francis </Td> </Tr> <Tr> <Th> Installed capacity </Th> <Td> 176.0 MW 220 MW (overload) </Td> </Tr> <Tr> <Th> Annual generation </Th> <Td> 957,340,000 KWh </Td> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> Bagnell Dam and Osage Power Plant </Td> </Tr> <Tr> <Td_colspan="2"> U.S. National Register of Historic Places </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Location </Th> <Td> 617 River Rd., Lakeside, Missouri </Td> </Tr> <Tr> <Th> Area </Th> <Td> 6 acres (2.4 ha) </Td> </Tr> <Tr> <Th> Built </Th> <Td> 1931 </Td> </Tr> <Tr> <Th> Architect </Th> <Td> Stone & Webster </Td> </Tr> <Tr> <Th> Architectural style </Th> <Td> Other, Gravity Dam </Td> </Tr> <Tr> <Th> NRHP reference #</Th> <Td> 08000822 </Td> </Tr> <Tr> <Th> Added to NRHP </Th> <Td> August 27, 2008 </Td> </Tr> </Table> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Bagnell Dam </Th> </Tr>

When was the lake of the ozarks dam built