Ancho Dam A-5a
Ancho Dam A-5a is an earth dam located in Colfax County, New Mexico, built in 1996. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Ancho Dam A-5a
The primary purpose of Ancho Dam A-5a 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. (private). It impounds the Vermejo River - Tr near Maxwell.
The dam stands 25 feet tall and stretches 424 feet across, has a maximum storage capacity of 32 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1996, the structure is 30 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 13 years ago.
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Location
| State | New Mexico |
| County | Colfax |
| Nearest City | Maxwell |
| River/Stream | Vermejo River - Tr |
| Coordinates | 36.80770, -104.86470 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 424 ft |
| Year Completed | 1996 (30 years old) |
Storage & Hydraulics
| NID Storage | 32 acre-ft |
| Max Storage | 32 acre-ft |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,500 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | CHEVRON MINING INC. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/04/2012 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NM00614 |
| Federal ID | NM00614 |
| More Info | State Dam Safety Program |