Twin Basin
Twin Basin is an earth dam located in Mesa County, Colorado, built in 1912. It carries a Low hazard potential classification and has a fair condition assessment.
About Twin Basin
The primary purpose of Twin Basin is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Ute Water Conservancy District (private). It impounds the Bull Creek-tr near Molina.
The dam stands 17 feet tall and stretches 700 feet across, creates a reservoir covering 19 acres, and has a maximum storage capacity of 172 acre-feet. Completed in 1912, the structure is over a century old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected 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. The most recent inspection on record was 07/09/2020.
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Location
| State | Colorado |
| County | Mesa |
| Nearest City | Molina |
| River/Stream | Bull Creek-tr |
| Coordinates | 39.08259, -108.04460 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 700 ft |
| Year Completed | 1912 (114 years old) |
Storage & Hydraulics
| NID Storage | 172 acre-ft |
| Max Storage | 172 acre-ft |
| Normal Storage | 142 acre-ft |
| Surface Area | 19 acres |
| Max Discharge | 388 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | UTE WATER CONSERVANCY DISTRICT |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 07/09/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO00829 |
| Federal ID | CO00829 |
| More Info | State Dam Safety Program |