LITTLE GOOSE
OperatingHydro power plant
- Capacity
- 810 MW
- Primary fuel
- Hydro
- County
- Columbia County
- Operator
- USACE NORTHWESTERN DIVISION
- Status
- Operating
- Commissioned
- 1970
- EIA plant ID
- 3926
- Coordinates
- 46.5839, -118.0269
LITTLE GOOSE, an 810 MW Hydro power plant in Columbia County, Washington. Operated by USACE NORTHWESTERN DIVISION, commissioned 1970.
Weather peril exposure
LITTLE GOOSE is an 810 MW hydro power plant in Columbia County, WA, operated by USACE NORTHWESTERN DIVISION, commissioned in 1970. Columbia County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.4 of 5 at the 10th national percentile. Riverine flooding is the leading peril, rated Very Low by FEMA at the 99th 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.
Columbia County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Riverine flooding | Very Low | 99th | 4.9 of 5 | 0.18 |
| Wildfire | Relatively Low | 87th | 4.5 of 5 | <0.01 |
| Earthquake | Very Low | 74th | 3.9 of 5 | <0.01 |
| Heat wave | Very Low | 67th | 3.7 of 5 | 4.8 |
| Ice storm | Relatively Low | 26th | 2.0 of 5 | 0.38 |
| Strong wind | Very Low | 26th | 2.0 of 5 | 0.30 |
| Hail | Very Low | 8th | 1.3 of 5 | 0.34 |
| Winter weather | Very Low | 6th | 1.3 of 5 | 17.2 |
| Lightning | Very Low | 6th | 1.3 of 5 | 13.4 |
| Tornado | Very Low | 6th | 1.2 of 5 | 0.03 |
Perils not assessed in Columbia 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 Columbia 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.