EUFAULA DAM
OperatingHydro power plant
- Capacity
- 90 MW
- Primary fuel
- Hydro
- County
- Haskell County
- Operator
- USCE-TULSA DISTRICT
- Status
- Operating
- Commissioned
- 1964
- EIA plant ID
- 6419
- Generators
- 3
- Technology
- Conventional Hydroelectric
- Net generation (2024)
- 220 GWh
- Capacity factor (2024, EIA nameplate)
- 28%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 35.3068, -95.3574
EUFAULA DAM, a 90 MW Hydro power plant in Haskell County, Oklahoma. Operated by USCE-TULSA DISTRICT, commissioned 1964.
How EUFAULA DAM compares
With 90 MW of capacity, EUFAULA DAM ranks 52nd among the 73 operating power plants Bywatts maps in Oklahoma and 6th of the 11 operating Hydro plants in the state. It accounts for about 8.2% of Oklahoma's operating Hydro capacity and 0.4% of all operating capacity in the state. Nationally it is the 195th-largest of the 1,243 operating Hydro plants in the database. Commissioned in 1964, it is older than 76% of the 72 operating Oklahoma plants with a recorded commissioning year. Its operator, USCE-TULSA DISTRICT, runs 7 operating plants in Oklahoma totaling 514 MW.
EIA-860 lists 3 generators at the site with 90 MW of nameplate capacity, all conventional hydroelectric technology. Net generation was 220 GWh in 2024 (a 28% capacity factor), up 14% from 2022.
Grid neighborhood
The closest transmission line found within 10 miles is a 161 kV line, under 0.1 miles away. One other operating power plant sits within 25 miles: WEBBERS FALLS (60 MW, Hydro).
Computed by Bywatts from HIFLD power plant and transmission line records and EIA-860/923 survey data; distances are straight-line. Sources and methodology
Weather peril exposure
EUFAULA DAM is a 90 MW hydro power plant in Haskell County, OK, operated by USCE-TULSA DISTRICT, commissioned in 1964. Haskell County carries critical modeled catastrophe exposure in the FEMA National Risk Index, scoring 4.6 of 5 at the 90th national percentile. Wildfire is the leading peril, rated Relatively Moderate by FEMA at the 96th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a hydro plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Haskell County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Wildfire | Relatively Moderate | 96th | 4.8 of 5 | 0.02 |
| Ice storm | Relatively Moderate | 96th | 4.8 of 5 | 1.4 |
| Hail | Relatively Low | 90th | 4.6 of 5 | 7.1 |
| Winter weather | Relatively Low | 84th | 4.3 of 5 | 6.5 |
| Riverine flooding | Very Low | 78th | 4.1 of 5 | 1.4 |
| Tornado | Relatively Low | 74th | 3.9 of 5 | 0.58 |
| Lightning | Relatively Low | 71st | 3.9 of 5 | 59.0 |
| Heat wave | Relatively Low | 69th | 3.7 of 5 | 25.1 |
| Strong wind | Relatively Low | 67th | 3.7 of 5 | 4.9 |
| Earthquake | Very Low | 59th | 3.4 of 5 | <0.01 |
| Hurricane | Very Low | 47th | 2.9 of 5 | 0.02 |
Perils not assessed in Haskell County
These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.
| Peril | Why it is not scored |
|---|---|
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Haskell County in the weather risk calculator
Ratings are the FEMA National Risk Index county hazard ratings; the peril score is a Bywatts transform of the FEMA national percentile. Full data sources and the solar vulnerability methodology are in the weather risk calculator.
Modeled estimate for screening and negotiation. Built from FEMA National Risk Index county hazard data and a solar vulnerability layer documented above. Not a quote, a binder, or actuarial advice, and not a substitute for a carrier's own model. Hazard data: FEMA National Risk Index December 2025, synced 2026-07-24. Resolution is county level, not site level.