Sandstone Rapids is a gravity dam located in Marinette County, Wisconsin, built in 1925. It carries a High hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 42 ft42 ft tall and 420 ft long, taller than 88% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Sandstone Rapids
The primary purpose of Sandstone Rapids is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Wisconsin Public Service Corporation (public utility). It impounds the Peshtigo River near Crivitz.
The dam stands 42 feet tall and stretches 420 feet across, creates a reservoir covering 150 acres, has a maximum storage capacity of 1,650 acre-feet, and collects water from a drainage area of 675 square miles. Completed in 1925, the structure is over a century old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 09/06/2022.
At 42 feet, this dam is taller than 88% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Wisconsin dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Wisconsin |
| County | Marinette |
| Nearest City | Crivitz |
| River/Stream | Peshtigo River |
| Coordinates | 45.23330, -88.06830 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 42 ft |
| Dam Height | 42 ft |
| Dam Length | 420 ft |
| Year Completed | 1925 (101 years old) |
Storage & Hydraulics
| NID Storage | 1,650 acre-ft |
| Max Storage | 1,650 acre-ft |
| Normal Storage | 1,640 acre-ft |
| Surface Area | 150 acres |
| Drainage Area | 675 sq mi |
| Max Discharge | 20,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Wisconsin Public Service Corporation |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/06/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00760 |
| Federal ID | WI00760 |
| More Info | State Dam Safety Program |