East Fork Big Cr Watershed Site Z-4 dam
East Fork Big Cr Watershed Site Z-4
East Fork Big Cr Watershed Site Z-4 is a key structure managed by the USDA NRCS in Iowa, designed to serve multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. Completed in 1995, this earth dam stands at a height of 20 feet and spans 500 feet, with a storage capacity of 100 acre-feet and a drainage area of 0.34 square miles. Located in Decatur County, Iowa, this site plays a crucial role in managing water resources and mitigating flood risks in the region.
The dam at East Fork Big Cr Watershed Site Z-4 is state-regulated by the Iowa DNR, ensuring that it meets all necessary permitting, inspection, and enforcement requirements. Despite its low hazard potential, the site is considered to have a moderate risk level, emphasizing the importance of proper risk management measures. With its primary focus on water resource management and environmental conservation, this structure serves as a vital asset in safeguarding the local ecosystem and supporting sustainable development practices.
As part of the Rock Island District, East Fork Big Cr Watershed Site Z-4 exemplifies the collaborative efforts between local government agencies, federal entities, and conservation groups to protect water resources and enhance climate resilience in the region. With its strategic location and design, this site stands as a testament to the importance of effective dam infrastructure in ensuring water security, ecological sustainability, and disaster preparedness for the community.
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 East Fork Big Cr Watershed Site Z-4 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Thompson River At Davis City | 133 cfs | → |
| East Fork Big Creek Near Bethany | 13 cfs | → |
| Thompson River At Trenton | 772 cfs | → |
| East Fork 102 River At Bedford | 1 cfs | → |
| South Fork Chariton River Near Promise City | 82 cfs | → |
| Chariton River Near Chariton | 34 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near East Fork Big Cr Watershed Site Z-4.
Track East Fork Big Cr Watershed Site Z-4 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 East Fork Big Cr Watershed Site Z-4
Where does the data for East Fork Big Cr Watershed Site Z-4 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 East Fork Big Cr Watershed Site Z-4.