Glen Herman Stabilizer dam
Glen Herman Stabilizer
Glen Herman Stabilizer, located in Olmsted County, Minnesota, along the Zumbro River, is a privately owned earth dam built in 1982 by the USDA NRCS for flood risk reduction purposes. Standing at a height of 26 feet, the dam has a storage capacity of 51 acre-feet and covers a surface area of 2 acres. Despite its low hazard potential and fair condition assessment, the dam is regulated by the Minnesota Department of Natural Resources and is subject to state permitting, inspection, and enforcement protocols.
Managed by the Natural Resources Conservation Service, Glen Herman Stabilizer serves as a crucial infrastructure for flood risk reduction in the region. The dam's primary purpose is to protect the surrounding areas from potential flooding events, thereby safeguarding lives and properties. With a moderate risk assessment score of 3, the dam is tasked with maintaining its structural integrity to ensure its effectiveness in mitigating flood risks.
The dam's location in Rochester, Minnesota, under the jurisdiction of the MNDNR EWR, highlights its importance in water resource management and climate resilience efforts. As a key component of the flood control system along the Zumbro River, Glen Herman Stabilizer plays a vital role in safeguarding the local community and environment from the impacts of extreme weather events and rising water levels.
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 Glen Herman Stabilizer -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| South Fork Zumbro River At Rochester | 159 cfs | → |
| Root River Near Pilot Mound | 393 cfs | → |
| Zumbro River At Kellogg | 1,550 cfs | → |
| Mississippi River At Red Wing | 19,400 cfs | → |
| Cannon River At Welch | 713 cfs | → |
| Mississippi River At Winona | 30,900 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Glen Herman Stabilizer.
Boat launches
- Boat Launch Olmsted County
- Mississippi River -- Deer Island Landing
- Route 61/Route 63 Lake City
- Mississippi River -- Pepin Town Landing
- Mississippi River -- Indian Slough Landing
- Mississippi River -- Belvidere Slough Landing
Campgrounds
- Camp Grounds
- Chester Woods/Kisrow County Park
- Oronococ City Park
- Oxbow Park Campground
- Group Site 2 (Grp2)
- Group Site 1 (Grp1)
Fishing spots
- Dacota Street Fishing Pier
- Huff Street Fishing Pier
- Franklin St. Fishing Pier
- Bigalks Creek
- Coldwater Creek
Track Glen Herman Stabilizer 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 Glen Herman Stabilizer
Where does the data for Glen Herman Stabilizer 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 Glen Herman Stabilizer.