| Fort Gibson Dam | |
| Location Map: | Oklahoma |
| Coordinates: | 35.8697°N -95.2304°W |
| Country: | United States |
| Location: | Wagoner / Cherokee counties near Fort Gibson and Okay, Oklahoma, US |
| Status: | In Use |
| Construction Began: | 1941 |
| Opening: | 1949 |
| Cost: | $22,000,000 |
| Owner: | U.S. Army Corps of Engineers |
| Dam Type: | Concrete Gravity |
| Dam Height: | 1100NaN0 |
| Dam Length: | 28500NaN0 |
| Dam Crosses: | Neosho River |
| Spillway Count: | 30 |
| Spillway Type: | Tainter gate |
| Spillway Capacity: | 9860000NaN0 |
| Res Name: | Fort Gibson Lake |
| Res Capacity Total: | 12920000NaN0 |
| Res Capacity Active: | 12870000NaN0 |
| Res Catchment: | 126150NaN0 |
| Plant Commission: | 1953 |
| Plant Turbines: | 4 x 11.25 MW[1] Francis-type[2] |
| Plant Capacity: | 48 MW[3] |
| Plant Annual Gen: | 208,482,000 KWh |
The Fort Gibson Dam is a gravity dam on the Grand (Neosho) River in Oklahoma, 5.40NaN0 north of the town of Fort Gibson. The dam forms Fort Gibson Lake. The primary purposes of the dam and lake are flood control and hydroelectric power production, although supply of drinking water to local communities, as well as recreation, are additional benefits.[4] The project was authorized by the Flood Control Act of 1941 and construction began the next year. During World War II construction was suspended and it recommenced in May 1946. In June 1949, the river was closed and the entire project was complete in September 1953 with the operation of the last of the power plant's four generators.[5] Rights to construct the project originally belonged to the Grand River Dam Authority, but were seized by the U.S. Army Corps of Engineers in 1946.[6]
| Dam | ||
|---|---|---|
| Type | Concrete gravity | |
| Average Height | 900NaN0 | |
| Crest length | 28500NaN0 | |
| Concrete | 4613000NaN0 | |
| Reinforcing steel | 26550000NaN0 | |
| Miscellaneous metal works and castings | 3000000NaN0 | |
| Tainter gates | 31200000NaN0 | |
| Tainter gate anchorages | 9010000NaN0 | |
| Emergency gate guides | 1600000NaN0 |
| Dikes | |
|---|---|
| Number | 3 |
| Type | Rolled earth filled topped by surfaced service roadway |
| Height | 180NaN0 (max) |
| Length (Total all dikes) | 85000NaN0 |
| Width (At top) | 160NaN0 |
| Elevations (above sea level) | |
|---|---|
| Top of dam | 5930NaN0 |
| Top of gates | 5820NaN0 |
| Spillway crest | 5470NaN0 |
| Top of power pool | 5540NaN0 |
| Flood control pool | 5820NaN0 |
| Spillway | |
|---|---|
| Type | Gate-controlled concrete gravity ogee-weir with stilling basin |
| Gates | 30 (40 feet by 35 feet tainter) |
| Length | 14900NaN0 |
| Capacity - Pool at top of gates | 9150000NaN0 |
| Capacity - Maximum pool | 9150000NaN0 |
| Capacity - Power pool | 690000NaN0 |
| Outlet works | |
|---|---|
| Number of sluices | 10 |
| Size of sluices | 5 feet 8 inches by 7 feet |
| Capacity - Pool at top of gates | 208000NaN0 |
| Capacity - Power pool | 165000NaN0 |
| Capacity - Pool at WEIR crest | 153000NaN0 |
| Reservoir Capacities | |
|---|---|
| Pool - at top of gates | 1287000acre.ft |
| Pool- at maximum stage | 1292000acre.ft |
| Top of power pool | 365000acre.ft |
| Drainage area | 126150NaN0 |
First Contract: Al Johnson construction co. Winston brothers co. peter kiewit sons co. 608 Foshay Tower. Minneapolis, Minnesota
Second Contract: W. R. Grimshaw company. - Tulsa, Oklahoma