Antelope Creek dam
Antelope Creek
Antelope Creek is a privately owned irrigation structure located in Idaho, specifically in Bonneville County. Completed in 1991, this earth dam stands at a height of 21.8 feet and has a maximum storage capacity of 67 acre-feet. With a surface area of 10.1 acres, Antelope Creek serves the primary purpose of irrigation, providing water resources for agricultural activities in the region.
Managed by the Idaho Department of Water Resources, Antelope Creek is regulated, inspected, and enforced for compliance with state regulations. The dam, constructed with stone core and rock and soil foundations, features a controlled spillway with a width of 16 feet. Classified as having a significant hazard potential and fair condition assessment, the structure undergoes inspections every four years to ensure its safety and integrity. The risk assessment for Antelope Creek indicates a very high risk level, emphasizing the importance of ongoing maintenance and monitoring to mitigate potential hazards.
Situated within the Snake River drainage area, Antelope Creek plays a vital role in supporting the local agricultural community by providing reliable irrigation water. Despite its risk assessment, the dam continues to serve its purpose effectively, demonstrating the importance of water resource management and infrastructure maintenance in the face of changing climate conditions. For water resource and climate enthusiasts, Antelope Creek represents a prime example of the intricate balance between human intervention and natural systems in sustaining agricultural activities 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 Antelope Creek -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Snake River Nr Heise Id | 13,100 cfs | → |
| Willow Creek Bl Tex Creek Nr Ririe Id | 45 cfs | → |
| Willow Creek Nr Ririe Id | 63 cfs | → |
| Dry Bed Nr Ririe Id | 3,520 cfs | → |
| Sand Creek Ab Willow Creek Div Nr Ucon Id | 384 cfs | → |
| Willow Creek Floodway Channel Nr Ucon Id | 0 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Antelope Creek.
Boat launches
- Wolf Flats Recreation Area
- Conant Valley Boat Ramp
- Spring Creek Boat Ramp Swan Valley
- Byington Boat Ramp
- Bonneville County
- East Lincoln Road Bonneville County
Campgrounds
Fishing spots
- Palisades Reservoir
- Ashton Reservoir
- Pritchard Boating Site
- Astoria Boating Site
- Elbow Boating Site
- Jenny Lake
Paddle runs
- Pine Creek To Riley Diversion
- South Fork Snake River
- Tie Canyon To Targhee Nf Boundary
- Just West Of Crystal Lake To Trailhead
- Canyon Creek
More reservoirs
Track Antelope Creek 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 Antelope Creek
Where does the data for Antelope Creek 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 Significant 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 Antelope Creek.