MCNARY DAM FISH ATTRACTION PROJECT
OperatingHydro power plant
- Capacity
- 10 MW
- Primary fuel
- Hydro
- County
- Benton County
- Operator
- NORTHERN WASCO COUNTY PUD
- Status
- Operating
- Commissioned
- 1997
- EIA plant ID
- 7511
- Coordinates
- 45.9401, -119.2989
MCNARY DAM FISH ATTRACTION PROJECT, a 10 MW Hydro power plant in Benton County, Washington. Operated by NORTHERN WASCO COUNTY PUD, commissioned 1997.
Weather peril exposure
MCNARY DAM FISH ATTRACTION PROJECT is a 10 MW hydro power plant in Benton County, WA, operated by NORTHERN WASCO COUNTY PUD, commissioned in 1997. Benton County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.3 of 5 at the 7th national percentile. Wildfire is the leading peril, rated Relatively Moderate by FEMA at the 95th 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.
Benton County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Wildfire | Relatively Moderate | 95th | 4.8 of 5 | 0.01 |
| Earthquake | Relatively Moderate | 86th | 4.4 of 5 | <0.01 |
| Riverine flooding | Relatively Moderate | 70th | 3.8 of 5 | 0.39 |
| Heat wave | Relatively Moderate | 69th | 3.8 of 5 | 7.9 |
| Lightning | Relatively Moderate | 13th | 1.5 of 5 | 7.4 |
| Strong wind | Relatively Low | 7th | 1.3 of 5 | 0.29 |
| Tornado | Very Low | 7th | 1.3 of 5 | 0.06 |
| Winter weather | Relatively High | 7th | 1.3 of 5 | 7.9 |
| Hail | Relatively Low | 6th | 1.3 of 5 | 0.21 |
| Ice storm | Relatively High | 0th | 1.0 of 5 | 0.23 |
Perils not assessed in Benton 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 |
|---|---|
| Hurricane | FEMA rating is "Not Applicable" for this county |
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Benton 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.