Ancho Dam A-8 is an earth dam located in Colfax County, New Mexico, built in 1997. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 37 ft37 ft tall and 530 ft long, taller than 83% 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 Ancho Dam A-8
The primary purpose of Ancho Dam A-8 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Chevron Mining Inc. (ancho Dams) (private). It impounds the Vermejo River - Tr.
The dam stands 37 feet tall and stretches 530 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 174 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1997, the structure is 29 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 10/04/2012. That was over 14 years ago.
At 37 feet, this dam is taller than 83% of dams nationwide.
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Location
| State | New Mexico |
| County | Colfax |
| River/Stream | Vermejo River - Tr |
| Coordinates | 36.80340, -104.84860 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 37 ft |
| Dam Height | 37 ft |
| Dam Length | 530 ft |
| Year Completed | 1997 (29 years old) |
Storage & Hydraulics
| NID Storage | 174 acre-ft |
| Max Storage | 174 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 4,900 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Chevron Mining Inc. (ancho Dams) |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/04/2012 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NM00587 |
| Federal ID | NM00587 |
| More Info | State Dam Safety Program |