Park Mill dam
Park Mill
Park Mill, located on the Menominee River at the border of Menominee, Michigan, and Marinette, Wisconsin, is a concrete gravity dam completed in 1920 primarily for hydroelectric purposes. With a height of 24 feet and a length of 538 feet, this dam has a storage capacity of 3,788 acre-feet and serves a drainage area of 4,060 square miles. The dam features a Tainter spillway with a width of 303 feet and is equipped with 12 radial outlet gates.
Managed by the Federal Energy Regulatory Commission, Park Mill has a low hazard potential and a moderate risk assessment rating. While the condition assessment is listed as "Not Available," the dam undergoes inspections every 3 years to ensure its structural integrity and operational efficiency. Emergency action plans have been prepared and updated periodically, demonstrating a commitment to the safety and proper management of this essential water resource infrastructure in the region.
Dam data reference
Condition Assessment
- Satisfactory
- No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
- Fair
- No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
- Poor
- A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
- Unsatisfactory
- A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
- Not Rated
- The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Hazard Potential Classification
- High
- Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
- Significant
- Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
- Low
- Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
- Undetermined
- Dams for which a downstream hazard potential has not been designated or is not provided.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Park Mill -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Peshtigo River At Peshtigo | 1,230 cfs | → |
| Peshtigo River At Porterfield | 1,060 cfs | → |
| Menominee River Near Mc Allister | 4,460 cfs | → |
| Menominee River At Koss | 5,030 cfs | → |
| Oconto River Near Oconto | 938 cfs | → |
| Menominee River At White Rapids Dam Near Banat | 4,950 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Park Mill .
Boat launches
- Menominee River - Upper Scott Flowage -- Access At Sth 180
- Menominee River -- Boom Landing
- 6th Street Menekaunee
- Little River Boat Launch
- Potato Rapids / Bagley Flowage -- Access At Peshtigo River Sf
- Peshtigo Flowage -- Landing #1 - State Forest
Campgrounds
- Green's Green Acres Campground
- Holtwood
- North Camp Area @ Potawatomi State Park
- Potawatomi State Park Campground
- South Camp Area @ Potawatomi State Park
- Tennison Bay
Paddle runs
- Sec 12/13 Line, T35n, R16e To Forest Boundary In Sec 24, T35n, R16e
- Confluence With Armstrong Creek To Sec 12/13 Line, T35n, R16e
- 1/4 Mile Upstream From Evans Bridge To Confluence With Armstrong Creek
- 1/4 Mile Downstream From Ccc Bridge To 1/4 Mile Upstream From Evans Bridge
Track Park Mill in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Park Mill
Where does the data for Park Mill come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the Low hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Park Mill .