Lost Marsh Wma dam
Lost Marsh Wma
Lost Marsh WMA is a state-owned wildlife management area located in Blue Earth, Minnesota, near the city of Pemberton. The site is home to a fish and wildlife pond created by an earth dam, with a maximum storage capacity of 950 acre-feet and a surface area of 230 acres. The dam, completed in 1990, stands at a height of 11 feet and serves to regulate the flow of the Little Cobb River-TR.
Despite its low hazard potential and satisfactory condition assessment, Lost Marsh WMA is subject to state regulation, inspection, and enforcement by the Minnesota Department of Natural Resources. The area offers a tranquil habitat for various wildlife species and serves as a recreational space for visitors interested in birdwatching, fishing, and nature exploration. The site's risk assessment is categorized as very high, emphasizing the importance of responsible management and maintenance practices to ensure the safety and longevity of the dam structure.
With its picturesque surroundings and vital role in supporting local biodiversity, Lost Marsh WMA stands as a testament to the intersection of water resource management and conservation efforts. As climate change continues to impact ecosystems worldwide, this sanctuary serves as a reminder of the importance of protecting and preserving our natural resources for future generations. Whether you're a water resource enthusiast or a climate advocate, Lost Marsh WMA offers a unique opportunity to connect with nature and appreciate the delicate balance between human activity and environmental sustainability.
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 Lost Marsh Wma -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Le Sueur River Near Rapidan | 3,650 cfs | → |
| Blue Earth River Near Rapidan | 3,920 cfs | → |
| Minnesota River At Mankato | 11,300 cfs | → |
| Watonwan River Near Garden City | 1,380 cfs | → |
| Little Cottonwood River Near Courtland | 103 cfs | → |
| Straight River Near Faribault | 286 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lost Marsh Wma.
Boat launches
- 571st Lane Blue Earth County
- Inshore Road 11383, Blue Earth County
- Impulse Road 10041, Blue Earth County
- 400th Avenue 23339, Faribault County
- 622nd Lane 22399, Blue Earth County
- Park Road Madison Lake
Track Lost Marsh Wma 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 Lost Marsh Wma
Where does the data for Lost Marsh Wma 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 Lost Marsh Wma.