Monument #2 is an earth dam located in Mesa County, Colorado, built in 1954. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 20 ft20 ft tall and 500 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Monument #2
The primary purpose of Monument #2 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 Monument Creek-tr near Collbran.
The dam stands 20 feet tall and stretches 500 feet across, creates a reservoir covering 30 acres, has a maximum storage capacity of 400 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1954, the structure is well into its service life at over 50 years 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 08/11/2020.
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Location
| State | Colorado |
| County | Mesa |
| Nearest City | Collbran |
| River/Stream | Monument Creek-tr |
| Coordinates | 39.11333, -107.73557 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 19 ft |
| Dam Length | 500 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 400 acre-ft |
| Max Storage | 400 acre-ft |
| Normal Storage | 249 acre-ft |
| Surface Area | 30 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 450 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Ute Water Conservancy District |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 08/11/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO01043 |
| Federal ID | CO01043 |
| More Info | State Dam Safety Program |