Nutt Hollow Subwatershed Site 3-3075 dam
Nutt Hollow Subwatershed Site 3-3075
Nutt Hollow Subwatershed Site 3-3075, located in Monona County, Iowa, is a vital earth dam structure designed by the USDA NRCS in 1958 for multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. This site, situated along the TR-MAPLE RIVER, has a capacity of 63 acre-feet and a surface area of 3.5 acres, serving as a key water resource management infrastructure in the region. Despite its low hazard potential and moderate risk assessment score of 3, the dam's condition is currently not rated, emphasizing the need for regular inspections and maintenance to ensure its continued functionality.
Owned and regulated by the local government and Iowa DNR, Nutt Hollow Subwatershed Site 3-3075 plays a crucial role in water management and conservation efforts in the area. With a state-regulated status and necessary permitting, inspection, and enforcement protocols in place, the dam ensures effective flood risk reduction and water storage capabilities for the surrounding communities. Additionally, the dam's strategic location and design contribute to its operational efficiency and overall resilience in the face of potential climate challenges and evolving water resource management needs.
As a part of the Rock Island District, the Nutt Hollow Subwatershed Site 3-3075 serves as a valuable asset for the region's water infrastructure, providing essential water supply and flood protection benefits. With its primary purpose focused on safeguarding against fire, supporting livestock, and maintaining small fish ponds, this earth dam structure underscores the importance of sustainable water resource management practices in ensuring the resilience and sustainability of local ecosystems. As water resource and climate enthusiasts, understanding and supporting the maintenance and enhancement of such critical infrastructure is vital for promoting long-term water security and environmental sustainability 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 Nutt Hollow Subwatershed Site 3-3075 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Maple River At Mapleton | 314 cfs | → |
| Little Sioux River Near Turin | 1,910 cfs | → |
| Monona-Harrison Ditch Near Turin | 387 cfs | → |
| West Fork Ditch At Hornick | 80 cfs | → |
| Missouri River At Decatur | 28,700 cfs | → |
| Soldier River At Pisgah | 163 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Nutt Hollow Subwatershed Site 3-3075.
Boat launches
Campgrounds
Track Nutt Hollow Subwatershed Site 3-3075 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 Nutt Hollow Subwatershed Site 3-3075
Where does the data for Nutt Hollow Subwatershed Site 3-3075 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 Nutt Hollow Subwatershed Site 3-3075.