Dunham is an earth dam located in Dolores County, Colorado, built in 1966. It carries a Low hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 268 ft long, taller than 68% of U.S. dams with a recorded height. 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 Dunham
The primary purpose of Dunham is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Keith Ivins (private). It impounds the Disappointment Creek-tr near Slick Rock.
The dam stands 30 feet tall and stretches 268 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 134 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1966, 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. The most recent inspection on record was 05/16/2018.
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Location
| State | Colorado |
| County | Dolores |
| Nearest City | Slick Rock |
| River/Stream | Disappointment Creek-tr |
| Coordinates | 37.81834, -108.34418 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 268 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 134 acre-ft |
| Max Storage | 134 acre-ft |
| Normal Storage | 79 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 1,470 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Keith Ivins |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 05/16/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO02060 |
| Federal ID | CO02060 |
| More Info | State Dam Safety Program |