Eureka dam
Eureka
Eureka is a gravity dam located on the Fox River in Winnebago, Wisconsin, completed in 1920 with a height of 8 feet and a length of 209 feet. The dam serves multiple purposes, including flood control and water storage, with a maximum storage capacity of 124 acre-feet and a normal storage of 33 acre-feet. The drainage area for the dam is 1492 square miles, with a maximum discharge capacity of 4560 cubic feet per second.
The dam is owned and regulated by the Wisconsin Department of Natural Resources (WIDNR), with state permitting, inspection, and enforcement in place. It has a low hazard potential and is currently in fair condition, assessed in May 2020. While the dam has an uncontrolled spillway and no locks, it has an inspection frequency of 10 years and is located within the jurisdiction of the state of Wisconsin.
Overall, Eureka Dam plays a crucial role in water resource management and flood prevention in the region. Its moderate risk assessment suggests the need for continued monitoring and management measures to ensure its safety and efficiency in the face of changing climate conditions and water resource demands.
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 Eureka -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Fox River At Berlin | 1,710 cfs | → |
| Puchyan River Ds N. Lawson Drive Nr Green Lake | 115 cfs | → |
| Green Lake Inlet At Ct Highwy A Near Green Lake | 67 cfs | → |
| White Creek @ Spring Grove Road Nr Green Lake | 6 cfs | → |
| Fox River At Princeton | 1,220 cfs | → |
| Fox River At Oshkosh | 1,230 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Eureka.
Boat launches
- Fox River -- Access Off 36th Ct
- Fox River -- Eureka Town Launch
- Fox River -- Access At River Dr &Amp;Amp; Park Ln Berlin
- Fox River -- Longcroft Park Boat Launch
- Fox River -- Berlin Locks Access/Fox River
- Rush Lake -- East Boat Landing
Campgrounds
More reservoirs
Track Eureka 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 Eureka
Where does the data for Eureka 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 Eureka.