Leasburg Arroyo Dam
Leasburg Arroyo Dam is an earth dam located in Doña Ana County, New Mexico, built in 1959. It carries a Significant hazard potential classification and has a poor condition assessment.
About Leasburg Arroyo Dam
The primary purpose of Leasburg Arroyo Dam 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 New Mexico State Land Office (state). It impounds the Leasburg Arroyo near Radium Springs.
The dam stands 30 feet tall and stretches 317 feet across, has a maximum storage capacity of 97 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1959, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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 04/19/2016.
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Location
| State | New Mexico |
| County | Doña Ana |
| Nearest City | Radium Springs |
| River/Stream | Leasburg Arroyo |
| Coordinates | 32.46571, -106.88688 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 25 ft |
| Dam Length | 317 ft |
| Year Completed | 1959 (67 years old) |
Storage & Hydraulics
| NID Storage | 97 acre-ft |
| Max Storage | 97 acre-ft |
| Drainage Area | 0 sq mi |
| Max Discharge | 3,900 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | NEW MEXICO STATE LAND OFFICE |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 04/19/2016 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NM00281 |
| Federal ID | NM00281 |
| More Info | State Dam Safety Program |