Potato Rapids, located in Marinette, Wisconsin, along the Peshtigo River, is a gravity dam completed in 1920 primarily for hydroelectric purposes.
Wind
Humidity
With a height of 19 feet and a length of 1220 feet, the dam has a normal storage capacity of 2800 acre-feet and a maximum discharge of 21000 cubic feet per second. The controlled spillway, with a width of 158 feet, helps regulate water flow, ensuring efficient operation of the hydroelectric facility.
Managed by a public utility, Potato Rapids boasts a low hazard potential and a very high risk assessment rating of 1. Despite not being state-regulated, the dam falls under the jurisdiction of the Federal Energy Regulatory Commission for permitting, inspections, and enforcement. The facility also offers recreational opportunities in addition to its hydroelectric function, adding to its value as a water resource in the region.
Overall, Potato Rapids serves as a vital infrastructure for water resource management and renewable energy production in Wisconsin. With its historic significance and strategic location on the Peshtigo River, the dam plays a crucial role in the local community's water supply, recreation, and climate resilience efforts.
Year Completed |
1920 |
Dam Length |
1220 |
Dam Height |
19 |
River Or Stream |
Peshtigo River |
Primary Dam Type |
Gravity |
Surface Area |
350 |
Hydraulic Height |
17 |
Drainage Area |
1030 |
Nid Storage |
2800 |
Structural Height |
20 |
Outlet Gates |
Tainter (radial) - 7 |
Hazard Potential |
Low |
Foundations |
Rock, Soil |
Nid Height |
20 |
Peshtigo River At Porterfield
|
394cfs |
Peshtigo River At Peshtigo
|
335cfs |
Menominee River Near Mc Allister
|
2220cfs |
Menominee River At Koss
|
1920cfs |
Oconto River Near Oconto
|
370cfs |
Menominee River At White Rapids Dam Near Banat
|
1200cfs |
Peshtigo Flowage -- Landing #1 - State Forest
Potato Rapids / Bagley Flowage -- Access at Peshtigo River SF
Peshtigo Flowage / River -- Access at Front St Peshtigo
Menominee River -- Access at Cth G
Peshtigo River -- Access Off Cth B And Rainbow Dr Peshtigo
Menominee River - Upper Scott Flowage -- Access at Sth 180