WILLIAMS FORK HYDRO PLANT
OperatingHydro power plant
- Capacity
- 4 MW
- Primary fuel
- Hydro
- County
- Grand County
- Operator
- DENVER CITY & COUNTY OF
- Status
- Operating
- Commissioned
- 1959
- EIA plant ID
- 10422
- Coordinates
- 40.0351, -106.2054
WILLIAMS FORK HYDRO PLANT, a 4 MW Hydro power plant in Grand County, Colorado. Operated by DENVER CITY & COUNTY OF, commissioned 1959.
Weather peril exposure
WILLIAMS FORK HYDRO PLANT is a 4 MW hydro power plant in Grand County, CO, operated by DENVER CITY & COUNTY OF, commissioned in 1959. Grand County carries critical modeled catastrophe exposure in the FEMA National Risk Index, scoring 4.3 of 5 at the 82nd national percentile. Riverine flooding is the leading peril, rated Relatively Low by FEMA at the 91st 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.
Grand County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Riverine flooding | Relatively Low | 91st | 4.6 of 5 | 0.46 |
| Hail | Relatively Moderate | 85th | 4.4 of 5 | 2.5 |
| Wildfire | Relatively Low | 80th | 4.2 of 5 | <0.01 |
| Earthquake | Very Low | 57th | 3.3 of 5 | <0.01 |
| Winter weather | Relatively Low | 57th | 3.3 of 5 | 26.4 |
| Tornado | Very Low | 37th | 2.5 of 5 | 0.34 |
| Strong wind | Very Low | 28th | 2.1 of 5 | 0.51 |
| Lightning | Relatively Moderate | 12th | 1.5 of 5 | 59.6 |
| Ice storm | Very Low | 3rd | 1.1 of 5 | 0.01 |
Perils not assessed in Grand 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 |
| Heat wave | FEMA rating is "No Rating" for this county |
Model hail, wind and flood exposure for Grand 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.