Annabella East Detention Basin dam
Annabella East Detention Basin
Annabella East Detention Basin is a vital flood risk reduction infrastructure located in Annabella, Utah. Completed in 2017 by designers Jones and DeMille, this earth dam structure stands at an impressive 34.9 feet in structural height, with a hydraulic height of 17.3 feet. It serves as a crucial defense against potential flooding in the area, with a storage capacity of 34.9 acre-feet and a drainage area of 2.9 square miles.
Managed by the Utah Division of Water Rights, Annabella East Detention Basin is regulated and inspected regularly to ensure its operational readiness. The dam is classified as having a significant hazard potential, highlighting its importance in mitigating flood risks for the local community. With its primary purpose being flood risk reduction, this infrastructure plays a crucial role in protecting the residents of Annabella and the surrounding area from potential water-related disasters.
As a key component of flood control efforts in Sevier County, Utah, Annabella East Detention Basin stands as a testament to proactive water resource management. With its strategic location and impressive specifications, this infrastructure serves as a critical safeguard against the devastating impacts of flooding, showcasing the importance of sustainable water resource management practices in combating the challenges posed by climate change.
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 East 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 | 45 cfs | → |
| Sevier River Near Kingston | 9 cfs | → |
| East Fork Sevier River Near Kingston | 196 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Annabella East 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
- Rex Reservoir
- Corn Creek
- Gates Lake
- Lakeside Fish Cleaning Station Cua Dispersed
- Joe Bush Fisherman Parking Rec Site
Paddle runs
Track Annabella East 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 East Detention Basin
Where does the data for Annabella East 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 East Detention Basin.