Cutter
Cutter is an earth dam located in San Juan County, New Mexico, built in 1972. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Cutter
The primary purpose of Cutter is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Bia (federal). It impounds the Navajo Main Canal near Blanco.
The dam stands 145 feet tall and stretches 960 feet across, creates a reservoir covering 63 acres, has a maximum storage capacity of 2,920 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1972, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 10/20/2023.
At 145 feet, this dam is taller than 99% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The New Mexico dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | New Mexico |
| County | San Juan |
| Nearest City | Blanco |
| River/Stream | Navajo Main Canal |
| Coordinates | 36.68670, -107.68790 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 145 ft |
| Dam Height | 95 ft |
| Dam Length | 960 ft |
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 2,920 acre-ft |
| Max Storage | 2,920 acre-ft |
| Normal Storage | 1,793 acre-ft |
| Surface Area | 63 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 2,340 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BIA |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/20/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NM00121 |
| Federal ID | NM00121 |
| More Info | State Dam Safety Program |