Mesilla Diversion Dam is a concrete dam located in Doña Ana County, New Mexico, built in 1916. It carries a Low hazard potential classification.
Dam profile
NID height · 22 ft22 ft tall and 303 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Mesilla Diversion Dam
The primary purpose of Mesilla Diversion Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Bureau of Reclamation (federal). It impounds the Rio Grande River near La Mesa.
The dam stands 22 feet tall and stretches 303 feet across, and has a maximum storage capacity of 60 acre-feet. Completed in 1916, 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. The most recent inspection on record was 03/05/2019.
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Location
| State | New Mexico |
| County | Doña Ana |
| Nearest City | La Mesa |
| River/Stream | Rio Grande River |
| Coordinates | 32.22790, -106.79830 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 303 ft |
| Year Completed | 1916 (110 years old) |
Storage & Hydraulics
| NID Storage | 60 acre-ft |
| Max Storage | 60 acre-ft |
| Normal Storage | 50 acre-ft |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Bureau of Reclamation |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 03/05/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NM00008 |
| Federal ID | NM00008 |
| More Info | State Dam Safety Program |