Ellgen
Ellgen is an earth dam located in Moffat County, Colorado, built in 1949. It carries a Low hazard potential classification and has a fair condition assessment.
About Ellgen
The primary purpose of Ellgen is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Ellgen, Lorence & Gary (private). It impounds the Bell Rock Gulch near Ouray, Utah.
The dam stands 41 feet tall and stretches 345 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 171 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1949, the structure is well-established, with more than 75 years of service.
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 08/26/2016.
At 41 feet, this dam is taller than 88% of dams nationwide.
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Location
| State | Colorado |
| County | Moffat |
| Nearest City | Ouray, Utah |
| River/Stream | Bell Rock Gulch |
| Coordinates | 40.43501, -107.69723 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 41 ft |
| Dam Height | 41 ft |
| Dam Length | 345 ft |
| Year Completed | 1949 (77 years old) |
Storage & Hydraulics
| NID Storage | 171 acre-ft |
| Max Storage | 171 acre-ft |
| Normal Storage | 133 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 517 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | ELLGEN, LORENCE & GARY |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 08/26/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO01717 |
| Federal ID | CO01717 |
| More Info | State Dam Safety Program |