Pot Flowage dam
Pot Flowage
Pot Flowage, also known as Langlade County Flowage, is a state-owned water resource located in Glandon, Langlade County, Wisconsin. Managed by the Wisconsin Department of Natural Resources (WIDNR), this earth dam structure was completed in 1974 for the primary purpose of flood risk reduction along the TR Trappe River. With a dam height of 8 feet and a storage capacity of 180 acre-feet, Pot Flowage covers an area of 10 acres and serves as a recreational spot in addition to its flood control functions.
Despite being classified as having low hazard potential, Pot Flowage is considered to have a very high risk level due to its condition assessment of 'Fair'. The dam's last inspection in May 2020 revealed this rating, prompting the need for regular maintenance and risk management measures to ensure the safety and integrity of the structure. With a controlled spillway type and a maximum discharge of 38 cubic feet per second, Pot Flowage plays a crucial role in mitigating flood risks in the area while offering recreational opportunities for water and climate enthusiasts to enjoy.
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 Pot Flowage -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Prairie River Near Merrill | 190 cfs | → |
| Wisconsin River At Merrill | 3,620 cfs | → |
| Eau Claire River At Kelly | 253 cfs | → |
| Wisconsin River At Rothschild | 4,880 cfs | → |
| Rib River At Rib Falls | 713 cfs | → |
| Red River At Morgan Road Near Morgan | 236 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Pot Flowage.
Boat launches
- Pleasant Lake -- Access
- Echo Lake -- Access At Sw Side Of Lake Off Echo Lake Rd
- Moose Lake Boat Landing
- Prairie River -- Launch Site
- Prairie River -- Walk-In
- Mud Lake -- Access At S End Of Lake
Campgrounds
- Antigo Lake Rv Park
- Dells Of The Eau Claire Park - Wausau
- High Lake County Park
- Underdown County Park Campground
- Langlade County Veterans Memorial Park
- Game Lake Primitive
Paddle runs
- Unnamed Creek To Forest Boundary In Sec 14, T37n, R13e
- North Branch (Sections 19/30 Line) To Unnamed Creek In Sec 4, T37n, R13e
- Railroad Bridge To 1/4 Mile Downstream From The Ccc Bridge
- 1/4 Mile Downstream From Ccc Bridge To 1/4 Mile Upstream From Evans Bridge
- Main Branch-Forest Boundary In Sec 18, T37n, R15e To Railroad Bridge
- 1/4 Mile Upstream From Evans Bridge To Confluence With Armstrong Creek
Track Pot Flowage 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 Pot Flowage
Where does the data for Pot Flowage 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 Pot Flowage.