Upper Little Trimbelle Group dam
Upper Little Trimbelle Group
The Upper Little Trimbelle Group is a privately owned flood risk reduction dam located in Pierce, Wisconsin. Built in 1976 by the USDA NRCS, this earth dam stands at a height of 23 feet and spans 480 feet along Tr-Little Trimbelle Creek. With a storage capacity of 56 acre-feet, the dam serves to protect the surrounding area from potential flooding events.
Managed by the Natural Resources Conservation Service, the Upper Little Trimbelle Group has a low hazard potential and a moderate risk assessment rating. Despite its age, the dam's condition assessment is not available, and it has not been inspected in recent years. In case of emergencies, an emergency action plan has not been prepared, and the dam does not currently meet guidelines for inundation maps or risk management measures.
Climate and water resource enthusiasts may find the Upper Little Trimbelle Group to be an interesting case study in flood risk reduction infrastructure. With its long history and unique design features, this dam provides valuable insights into the challenges and opportunities associated with managing water resources in rural areas. Further research and monitoring of this dam could help inform future decision-making processes related to climate resilience and disaster preparedness in the region.
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 Upper Little Trimbelle Group -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Mississippi River At Red Wing | 19,400 cfs | → |
| Kinnickinnic River Near River Falls | 91 cfs | → |
| Mississippi River At Prescott | 22,200 cfs | → |
| Eau Galle River At Spring Valley | 19 cfs | → |
| Cannon River At Welch | 713 cfs | → |
| Mississippi River Below L&D #2 At Hastings | 17,800 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Upper Little Trimbelle Group.
Boat launches
- Mississippi River -- Hager City
- Mississippi River -- Bay City
- 190th Street Way Goodhue County
- County Road 68 Goodhue County
- Kinnickinnic River -- Hwy 65
- Dakota County
Track Upper Little Trimbelle Group 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 Upper Little Trimbelle Group
Where does the data for Upper Little Trimbelle Group 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 Upper Little Trimbelle Group.