Alsbury
Alsbury is an earth dam located in Mesa County, Colorado, built in 1996. It carries a Significant hazard potential classification and has a fair condition assessment.
About Alsbury
The primary purpose of Alsbury is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by West Divide Water Conservancy District (ryan, Wend (public utility). It impounds the East Divide near Silt.
The dam stands 36 feet tall and stretches 370 feet across, creates a reservoir covering 19 acres, has a maximum storage capacity of 429 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1996, the structure is 30 years old.
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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 06/16/2020.
At 36 feet, this dam is taller than 83% of dams nationwide.
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Location
| State | Colorado |
| County | Mesa |
| Nearest City | Silt |
| River/Stream | East Divide |
| Coordinates | 39.33334, -107.48390 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 25 ft |
| Dam Length | 370 ft |
| Year Completed | 1996 (30 years old) |
Storage & Hydraulics
| NID Storage | 429 acre-ft |
| Max Storage | 429 acre-ft |
| Normal Storage | 181 acre-ft |
| Surface Area | 19 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,189 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | WEST DIVIDE WATER CONSERVANCY DISTRICT (RYAN, WEND |
| Owner Type | Public Utility |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 06/16/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO02808 |
| Federal ID | CO02808 |
| More Info | State Dam Safety Program |