Dubay dam
Dubay
Dubay, located in Portage, Wisconsin, is a privately-owned concrete dam on the Wisconsin River with a primary purpose of hydroelectric power generation. Completed in 1942, this impressive structure stands at a height of 40 feet and has a maximum storage capacity of 128,800 acre-feet, serving flood risk reduction and energy production needs. With a spillway width of 330 feet and a controlled spillway type, Dubay boasts a high hazard potential and a very high risk assessment rating.
Managed by the Federal Energy Regulatory Commission, Dubay is not state-regulated but has state permitting and enforcement in place. The dam's condition assessment is currently not available, but emergency action plans are in preparation to ensure public safety in case of any unforeseen events. Despite its age, Dubay continues to play a vital role in water resource management, with a drainage area of 4,822 square miles and a maximum discharge capacity of 150,000 cubic feet per second.
Water resource and climate enthusiasts will appreciate the engineering marvel that is Dubay, as it combines the functionality of flood risk reduction with sustainable hydroelectric power generation. The dam's association with the Wisconsin River and its pivotal location in Stevens Point make it a key player in the region's water management infrastructure. As efforts continue to assess and mitigate potential risks associated with the dam, Dubay stands as a testament to the importance of effective water resource management in Wisconsin.
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 Dubay -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Wisconsin River At Rothschild | 2,210 cfs | → |
| Eau Claire River At Kelly | 170 cfs | → |
| Tomorrow River Near Nelsonville | 37 cfs | → |
| Wisconsin River At Wisconsin Rapids | 4,570 cfs | → |
| Big Eau Pleine River At Stratford | 25 cfs | → |
| Rib River At Rib Falls | 93 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Dubay .
Boat launches
- Wisconsin River - Lake Dubay -- Dam Access
- Dubay Lake -- Access Nr Park Rd
- Lake Dubay/Little Eau Pleine River - Access
- Wisconsin River At River's Edge Restaurant
- Lake Dubay -- Access
- Wisconsin River - Lake Dubay -- Access
Campgrounds
- Jordan Park Campground
- Jordan County Park Canoe Walk-In Campsites
- Boy Scouts Of America: Camp Fletcher
- South Unit Campground
- West Unit Campground
- Collins Park Campground
More reservoirs
Track Dubay 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 Dubay
Where does the data for Dubay 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 High 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 Dubay .