Peshtigo Harbor Wildlife Area dam
Peshtigo Harbor Wildlife Area
Located in Marinette, Wisconsin, the Peshtigo Harbor Wildlife Area is a state-owned recreational area nestled along the TR-Green Bay river or stream. Built in 1960, this Earth-type dam stands at a height of 8 feet and stretches 11,500 feet in length, creating a reservoir with a storage capacity of 650 acre-feet. With a surface area of 160 acres and a drainage area of 1.2 square miles, the dam serves a primary purpose of recreation for water and climate enthusiasts.
Despite its low hazard potential, the Peshtigo Harbor Wildlife Area presents a very high risk due to its lack of condition assessment and emergency action plan. While the dam is inspected every 10 years, its condition is currently rated as "Not Rated," highlighting the need for further evaluation and risk management measures. Water resource and climate enthusiasts visiting this area should exercise caution and stay informed about any potential hazards or emergency protocols.
As a haven for outdoor recreation and wildlife observation, the Peshtigo Harbor Wildlife Area offers a serene escape for nature lovers. With its controlled spillway and scenic surroundings, this state-regulated site provides a unique opportunity to appreciate the beauty of Wisconsin's natural landscapes while also raising awareness about the importance of water resource management and climate resilience.
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 Peshtigo Harbor Wildlife Area -- 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 | → |
| Oconto River Near Oconto | 938 cfs | → |
| Menominee River Near Mc Allister | 4,460 cfs | → |
| Menominee River At Koss | 5,030 cfs | → |
| Oconto River Near Gillett | 723 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Peshtigo Harbor Wildlife Area.
Boat launches
- North Bayshore Park
- Peshtigo River -- Access Off Cth B And Rainbow Dr Peshtigo
- Peshtigo Flowage / River -- Access At Front St Peshtigo
- Little River Boat Launch
- Peshtigo Flowage -- Landing #1 - State Forest
- Menominee River - Upper Scott Flowage -- Access At Sth 180
Campgrounds
- Green's Green Acres Campground
- Holtwood
- North Camp Area @ Potawatomi State Park
- Potawatomi State Park Campground
- South Camp Area @ Potawatomi State Park
- Group Camp @ Potawatomi State Park
Track Peshtigo Harbor Wildlife Area 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 Peshtigo Harbor Wildlife Area
Where does the data for Peshtigo Harbor Wildlife Area 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 Peshtigo Harbor Wildlife Area.