Greenbelt Dam
Greenbelt Dam is an earth dam located in Donley County, Texas, built in 1968. It carries a High hazard potential classification and has a fair condition assessment.
About Greenbelt Dam
The primary purpose of Greenbelt Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Greenbelt Municipal & Industrial Water Authority (local government). It impounds the Salt Fork Red River.
The dam stands 111 feet tall and stretches 8,300 feet across, creates a reservoir covering 2,020 acres, has a maximum storage capacity of 100,500 acre-feet, and collects water from a drainage area of 266 square miles. Completed in 1968, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 10/03/2023.
At 111 feet, this dam is taller than 98% 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 Texas 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 | Texas |
| County | Donley |
| River/Stream | Salt Fork Red River |
| Coordinates | 35.00083, -100.89480 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 111 ft |
| Dam Height | 111 ft |
| Dam Length | 8,300 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 100,500 acre-ft |
| Max Storage | 100,500 acre-ft |
| Normal Storage | 59,800 acre-ft |
| Surface Area | 2,020 acres |
| Drainage Area | 266 sq mi |
| Max Discharge | 190,675 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | GREENBELT MUNICIPAL & INDUSTRIAL WATER AUTHORITY |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 10/03/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | TX03698 |
| Federal ID | TX03698 |
| More Info | State Dam Safety Program |