Gant Creek Watershed Site D-3 dam
Gant Creek Watershed Site D-3
Located in Sioux City, Iowa, the Gant Creek Watershed Site D-3 is a vital water resource managed by the local government with oversight from the Iowa Department of Natural Resources. Designed by the USDA NRCS, this earth dam serves multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. Completed in 1967, the dam stands at a height of 36 feet with a length of 447 feet, providing a storage capacity of 64 acre-feet and covering a surface area of 5.2 acres.
The Gant Creek Watershed Site D-3 is regulated and inspected by the Iowa DNR, with a low hazard potential and a moderate risk assessment rating. While the condition assessment is currently not rated, the dam meets state permitting and inspection requirements. The dam's primary purpose of fire protection and flood risk reduction highlights its importance in ensuring water security for the local community, especially along the TR-Big Sioux River. With a commitment to effective risk management measures, the site plays a crucial role in maintaining water quality and quantity in the region.
As a key component of the local water infrastructure, the Gant Creek Watershed Site D-3 represents a significant investment in water management and conservation efforts. Its strategic location, design, and operational features demonstrate a proactive approach to addressing water resource challenges in the area. With continued collaboration between local government, regulatory agencies, and stakeholders, the site contributes to sustainable water resource management practices and climate resilience 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 Gant Creek Watershed Site D-3 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Big Sioux River At Akron | 1,120 cfs | → |
| Perry Creek Near Milnerville | 25 cfs | → |
| Vermillion River Nr Vermillion Sd | 42 cfs | → |
| Floyd River At James | 323 cfs | → |
| Missouri River At Sioux City | 26,000 cfs | → |
| Omaha Cr At Homer | 31 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Gant Creek Watershed Site D-3.
Boat launches
- State Highway 3 Plymouth County
- 180th Street Plymouth County
- 220th Street Plymouth County
- Ponca
- Powder Creek
- Mulberry Bend
Track Gant Creek Watershed Site D-3 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 Gant Creek Watershed Site D-3
Where does the data for Gant Creek Watershed Site D-3 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 Gant Creek Watershed Site D-3.