Annabella West Detention Basin dam
Annabella West Detention Basin
Annabella West Detention Basin, located in Annabella, Utah, is a vital water resource infrastructure designed by Jones & DeMille to address the state's regulatory needs for water management. Completed in 2017, this earth dam stands at a structural height of 21 feet with a hydraulic height of 16 feet, providing a maximum storage capacity of 53.7 acre-feet. The basin serves a drainage area of 6 square miles and is regulated by the Utah Division of Water Rights, ensuring proper inspection, permitting, and enforcement.
With a significant hazard potential and a recommended inspection frequency of every 3 years, Annabella West Detention Basin plays a crucial role in mitigating flood risks and managing water flow in the region. Despite not being rated for its condition assessment, the basin remains a key asset for local government water management efforts in Sevier County, Utah. As a part of the Los Angeles District, the basin serves as a testament to the collaborative efforts between federal and local agencies in safeguarding water resources and infrastructure in the face of climate challenges.
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 Annabella West Detention Basin -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Clear Creek Above Diversions | 26 cfs | → |
| Seven Mile Creek Near Fish Lake | 5 cfs | → |
| Salina Creek Near Emery | 4 cfs | → |
| Sevier River Blw San Pitch River | 43 cfs | → |
| Sevier River Near Kingston | 9 cfs | → |
| East Fork Sevier River Near Kingston | 198 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Annabella West Detention Basin.
Campgrounds
- Big Lake Cua Dispersed
- Milo's Kitchen Trailhead
- Koosharem Reservoir Dispersed Camping
- Koosharem Canyon/Paiute Atv
- Manning Meadow Cua Dispersed
- Upper Box Creek Trailhead
Fishing spots
- Manning Meadows Cua Dispersed
- Corn Creek
- Rex Reservoir
- Lakeside Fish Cleaning Station Cua Dispersed
- Gates Lake
- Joe Bush Fisherman Parking Rec Site
Paddle runs
Track Annabella West Detention Basin 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 Annabella West Detention Basin
Where does the data for Annabella West Detention Basin 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 Annabella West Detention Basin.