Eldorado Marsh dam
Eldorado Marsh
Eldorado Marsh, located in Fond du Lac, Wisconsin, is a state-regulated water resource with a primary purpose of recreation. This marsh boasts a gravity dam with a height of 9 feet and a hydraulic height of 2 feet, providing a maximum storage capacity of 8,300 acre-feet. With a surface area of 1,500 acres and a controlled spillway, Eldorado Marsh offers a unique and picturesque setting for water and climate enthusiasts to explore.
Despite being classified as having a low hazard potential and fair condition assessment, Eldorado Marsh is subject to regular inspections, with the last one taking place in May 2020. The risk assessment for this site is deemed very high, highlighting the importance of ongoing monitoring and management measures. With its serene surroundings and diverse wildlife, Eldorado Marsh serves as a valuable recreational area while also being a crucial component of the local ecosystem.
As climate change continues to impact water resources, Eldorado Marsh stands as a reminder of the importance of preserving and protecting our natural habitats. By maintaining the integrity of sites like Eldorado Marsh through regular inspections and risk assessments, we can ensure the sustainability of these vital ecosystems for future generations 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 Eldorado Marsh -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| West Branch Rock River @ State Hwy 49 Nr Waupun | 40 cfs | → |
| Fox River At Oshkosh | 5,650 cfs | → |
| South Branch Rock River At Waupun | 104 cfs | → |
| Green Lake Inlet At Ct Highwy A Near Green Lake | 67 cfs | → |
| White Creek @ Spring Grove Road Nr Green Lake | 6 cfs | → |
| Puchyan River Ds N. Lawson Drive Nr Green Lake | 115 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Eldorado Marsh.
Boat launches
- Lake Shore Drive Town Of Friendship
- Supples Marsh Boat Ramp
- Lake Winnebago - Lakeside Park Boat Ramp
- Lake Winnebago -- Fond Du Lac - Lakeside Park Harbor &Amp;Amp; Marina
- East Lone Elm Avenue 2000, Town Of Black Wolf
- Black Wolf Boat Landing
Campgrounds
More reservoirs
Track Eldorado Marsh 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 Eldorado Marsh
Where does the data for Eldorado Marsh 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 Eldorado Marsh.