Pensacola East Spillway 2, located in Mayes, Oklahoma, is a state-owned gravity dam constructed in 1940 for hydroelectric purposes on the Neosho River.
Wind
Humidity
With a structural height of 48 feet and a spillway width of 370 feet, this controlled spillway boasts tainter (radial) gates to manage water flow. The dam has a hazard potential rating of high and a very high risk assessment, emphasizing the importance of its maintenance and oversight.
Covering a drainage area of 10,192 acres, Pensacola East Spillway 2 has a storage capacity of 2,197,000 acre-feet, making it a crucial asset for flood risk reduction in the region. The dam's normal storage capacity is 1,630,000 acre-feet, and it covers a surface area of 46,500 acres. Although not state-regulated, the Federal Energy Regulatory Commission plays a significant role in overseeing its operations, inspections, and regulatory compliance.
With its strategic location in Salina, Oklahoma, Pensacola East Spillway 2 stands as a vital infrastructure for water resource management and energy generation in the area. The dam's history, design features, and risk profile make it a focal point for water resource and climate enthusiasts interested in the intersection of hydroelectric power and flood control.
Year Completed |
1940 |
Dam Length |
464 |
Dam Height |
12.5 |
River Or Stream |
Neosho |
Primary Dam Type |
Gravity |
Surface Area |
46500 |
Hydraulic Height |
15 |
Drainage Area |
10192 |
Nid Storage |
2197000 |
Structural Height |
48 |
Outlet Gates |
Tainter (radial) - 10 |
Hazard Potential |
High |
Nid Height |
48 |
Neosho River Near Langley
|
135cfs |
Spavinaw Creek Near Eucha
|
163cfs |
Big Cabin Creek Near Big Cabin
|
54cfs |
Beaty Creek Near Jay
|
12cfs |
Honey Creek Near South West City
|
14cfs |
Neosho River Near Chouteau
|
273cfs |
| Location | Reservations | Toilets |
|---|---|---|
Cherokee State Park
|
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Spavinaw State Park
|
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Bernice State Park
|