The Fort Gibson Dam - Oklahoma Ordinance Works Levee, also known as Fort Gibson Lake, is a gravity dam located in Mayes, Oklahoma that was completed in 1949 by the US Army Corps of Engineers.
Wind
Humidity
The primary purpose of this structure is flood risk reduction along the Grand River, with a total storage capacity of 1,284,400 acre-feet and a normal storage capacity of 365,200 acre-feet. The dam is 23 feet high and 5,450 feet long, with a surface area of 19,900 acres and a drainage area of 12,494 square miles.
Despite the risk associated with levees, a 2015 risk assessment classified the Oklahoma Ordnance Works Levee System as having a moderate level of risk. The primary concern is water seepage along conduits within the levee, which could lead to erosion and potential breaches causing flooding in nearby industrial and commercial buildings. To manage and mitigate this risk, the US Army Corps of Engineers has implemented several measures such as replacing metal pipes with concrete ones, conducting maintenance work on the levee slopes, and regularly updating the Emergency Action Plan. Additionally, emergency exercises are conducted with local and state responders to improve evacuation planning and response actions during flooding events.
Year Completed |
1949 |
Dam Length |
5450 |
Dam Height |
23 |
River Or Stream |
GRAND RIVER |
Primary Dam Type |
Gravity |
Surface Area |
19900 |
Hydraulic Height |
23 |
Drainage Area |
12494 |
Nid Storage |
1284400 |
Structural Height |
23 |
Hazard Potential |
High |
Nid Height |
23 |
Neosho River Near Chouteau
|
16000cfs |
Neosho River Near Langley
|
550cfs |
Spavinaw Creek Near Eucha
|
159cfs |
Big Cabin Creek Near Big Cabin
|
62cfs |
Verdigris River Near Claremore
|
1780cfs |
Illinois River At Chewey
|
388cfs |