Maxwell Dam No. 11
Maxwell Dam No. 11 is an earth dam located in Colfax County, New Mexico, built in 1914. It carries a Low hazard potential classification and has a poor condition assessment.
About Maxwell Dam No. 11
The primary purpose of Maxwell Dam No. 11 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Vermejo Conservancy District (private). It impounds the Vermejo River - Os near Maxwell.
The dam stands 21 feet tall and stretches 3,890 feet across, creates a reservoir covering 126 acres, has a maximum storage capacity of 637 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1914, the structure is over a century 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 04/06/2016.
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Location
| State | New Mexico |
| County | Colfax |
| Nearest City | Maxwell |
| River/Stream | Vermejo River - Os |
| Coordinates | 36.57821, -104.61516 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 15 ft |
| Dam Length | 3,890 ft |
| Year Completed | 1914 (112 years old) |
Storage & Hydraulics
| NID Storage | 637 acre-ft |
| Max Storage | 637 acre-ft |
| Normal Storage | 217 acre-ft |
| Surface Area | 126 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 1,317 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | VERMEJO CONSERVANCY DISTRICT |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 04/06/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NM00288 |
| Federal ID | NM00288 |
| More Info | State Dam Safety Program |