Gunnison Lake Site D2 Dam
Gunnison Lake Site D2 Dam is an earth dam located in Sullivan County, New Hampshire, built in 1983. It carries a High hazard potential classification and has a fair condition assessment.
About Gunnison Lake Site D2 Dam
The primary purpose of Gunnison Lake Site D2 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 Nh Des Water Division (state). It impounds the Blood Brook near Goshen.
The dam stands 62 feet tall and stretches 2,140 feet across, creates a reservoir covering 96 acres, has a maximum storage capacity of 1,900 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1983, the structure is 43 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 11/16/2021.
At 62 feet, this dam is taller than 95% 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 Hampshire 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 Hampshire |
| County | Sullivan |
| Nearest City | Goshen |
| River/Stream | Blood Brook |
| Coordinates | 43.28520, -72.13110 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 62 ft |
| Dam Height | 62 ft |
| Dam Length | 2,140 ft |
| Year Completed | 1983 (43 years old) |
Storage & Hydraulics
| NID Storage | 1,900 acre-ft |
| Max Storage | 1,900 acre-ft |
| Normal Storage | 1,065 acre-ft |
| Surface Area | 96 acres |
| Drainage Area | 5 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | NH DES WATER DIVISION |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 11/16/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NH01000 |
| Federal ID | NH01000 |
| More Info | State Dam Safety Program |