Annabella West Detention Basin
Annabella West Detention Basin is an earth dam located in Sevier County, Utah, built in 2017. It carries a Significant hazard potential classification.
About Annabella West Detention Basin
Annabella West Detention Basin is a dam in Sevier, Utah. The dam is owned by Annabella Town Water Department (local government).
The dam stands 21 feet tall, has a maximum storage capacity of 53 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 2017, the structure is relatively new.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 05/09/2023.
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Location
| State | Utah |
| County | Sevier |
| Nearest City | Annabella |
| Coordinates | 38.70017, -112.06916 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Year Completed | 2017 (9 years old) |
Storage & Hydraulics
| NID Storage | 53 acre-ft |
| Max Storage | 53 acre-ft |
| Normal Storage | 32 acre-ft |
| Drainage Area | 6 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | ANNABELLA TOWN WATER DEPARTMENT |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Last Inspection | 05/09/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | UT53864 |
| Federal ID | UT53864 |
| More Info | State Dam Safety Program |