Mc Aninch Dam dam
Mc Aninch Dam
Mc Aninch Dam, located in Warren County, Iowa, is a privately owned structure designed by the USDA NRCS for fire protection, stock, or as a small fish pond. Completed in 1968, this earth dam stands at a height of 33 feet and has a length of 1155 feet, with a storage capacity of 250 acre-feet. The dam is primarily regulated by the Iowa Department of Natural Resources and is used for water resource management in the TR-MIDDLE SOUTH CREEK watershed.
Despite being classified as having a low hazard potential, Mc Aninch Dam has a moderate risk assessment rating, indicating potential risks that need to be managed. The dam has not been rated for its current condition, but it is inspected and regulated by state agencies on a regular basis. While the dam does not have an Emergency Action Plan (EAP) in place, it meets state permitting and inspection requirements. The structure serves as a vital resource for the local community and plays a key role in water conservation and management efforts in the area.
For water resource and climate enthusiasts, Mc Aninch Dam presents an intriguing case study of a privately owned earth dam with a unique primary purpose. Its location in a rural setting and its utilization for fire protection and aquatic life support make it an important asset in the region. With ongoing oversight from state regulatory agencies and a risk assessment pointing to moderate risks, the management and maintenance of Mc Aninch Dam serve as a focal point for discussions on water resource sustainability and climate resilience in Iowa.
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 Mc Aninch Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Raccoon River Near West Des Moines | 1,320 cfs | → |
| Raccoon River At 63rd Street At Des Moines | 3,100 cfs | → |
| North River Near Norwalk | 804 cfs | → |
| Walnut Creek At Des Moines | 101 cfs | → |
| Raccoon River At Fleur Drive | 3,040 cfs | → |
| Des Moines River Blw Raccoon Riv At Des Moines | 9,310 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mc Aninch Dam.
Boat launches
- Walnut Woods Drive West Des Moines
- Raccoon River Park Trail West Des Moines
- County Park Des Moines
- Kruidenier Trail Des Moines
- Country Club Boulevard Clive
- Prospect Road Des Moines
Track Mc Aninch Dam 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 Mc Aninch Dam
Where does the data for Mc Aninch Dam 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 Mc Aninch Dam.