Twelve Mile Creek Watershed Site 36 dam
Twelve Mile Creek Watershed Site 36
Twelve Mile Creek Watershed Site 36, located in Davis City, Iowa, is a Grade Stabilization dam managed by the USDA NRCS and regulated by the Iowa DNR. Completed in 2003, this Earth dam stands at 31 feet high and spans 550 feet in length, with a storage capacity of 215 acre-feet. The dam serves the primary purpose of Grade Stabilization and is situated along the Tr- Twelve Mile Creek, within a drainage area of 0.73 square miles.
With a low hazard potential and a moderate risk assessment rating, Twelve Mile Creek Watershed Site 36 plays a crucial role in managing water resources in Union County, Iowa. Despite not being rated for condition assessment, the dam is equipped with an uncontrolled spillway and serves as a vital infrastructure for flood control and water management in the region. The site is not under the jurisdiction of any federal agency but receives state inspection, permitting, and enforcement from the Iowa DNR, ensuring its operational integrity and safety for the surrounding community.
Overall, Twelve Mile Creek Watershed Site 36 stands as a testament to the collaborative efforts between local government, regulatory agencies, and the USDA NRCS in safeguarding water resources and promoting sustainable development in the region. As a key infrastructure for Grade Stabilization, this dam contributes to the overall resilience of the Twelve Mile Creek watershed and underscores the importance of effective water management practices in mitigating climate risks and enhancing community safety.
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 Twelve Mile Creek Watershed Site 36 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Thompson River At Davis City | 2,350 cfs | → |
| East Fork 102 River At Bedford | 0 cfs | → |
| Raccoon River At Van Meter | 2,970 cfs | → |
| North River Near Norwalk | 804 cfs | → |
| South Raccoon River At Redfield | 692 cfs | → |
| South River Near Ackworth | 895 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Twelve Mile Creek Watershed Site 36.
Boat launches
Campgrounds
Track Twelve Mile Creek Watershed Site 36 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 Twelve Mile Creek Watershed Site 36
Where does the data for Twelve Mile Creek Watershed Site 36 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 Twelve Mile Creek Watershed Site 36.