ST CROIX FALLS
OperatingHydro power plant
- Capacity
- 23 MW
- Primary fuel
- Hydro
- County
- Polk County
- Operator
- NORTHERN STATES POWER CO - MINNESOTA
- Status
- Operating
- Commissioned
- 1910
- EIA plant ID
- 4011
- Coordinates
- 45.4119, -92.6471
ST CROIX FALLS, a 23 MW Hydro power plant in Polk County, Wisconsin. Operated by NORTHERN STATES POWER CO - MINNESOTA, commissioned 1910.
Weather peril exposure
ST CROIX FALLS is a 23 MW hydro power plant in Polk County, WI, operated by NORTHERN STATES POWER CO - MINNESOTA, commissioned in 1910. Polk County carries high modeled catastrophe exposure in the FEMA National Risk Index, scoring 4.2 of 5 at the 79th national percentile. Strong wind is the leading peril, rated Relatively High by FEMA at the 86th 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.
Polk County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Strong wind | Relatively High | 86th | 4.5 of 5 | 3.2 |
| Hail | Relatively Moderate | 83rd | 4.3 of 5 | 4.5 |
| Heat wave | Relatively Low | 63rd | 3.5 of 5 | 2.0 |
| Tornado | Relatively Moderate | 60th | 3.4 of 5 | 0.44 |
| Winter weather | Relatively Low | 43rd | 2.7 of 5 | 17.1 |
| Wildfire | Very Low | 33rd | 2.3 of 5 | <0.01 |
| Lightning | Relatively Moderate | 33rd | 2.3 of 5 | 33.4 |
| Ice storm | Relatively Low | 29th | 2.2 of 5 | 0.34 |
| Riverine flooding | Relatively Low | 13th | 1.5 of 5 | 0.36 |
| Earthquake | Very Low | 1st | 1.0 of 5 | <0.01 |
Perils not assessed in Polk 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 Polk 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.