Shehan Pond Dam
Shehan Pond Dam is an earth dam located in Coos County, New Hampshire, built in 1960. It carries a Low hazard potential classification and has a poor condition assessment.
About Shehan Pond Dam
The primary purpose of Shehan Pond Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Nh Fish And Game Department (state). It impounds the Roby Brook near Clarksville.
The dam stands 25 feet tall and stretches 330 feet across, creates a reservoir covering 50 acres, has a maximum storage capacity of 1,000 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1960, the structure is well into its service life at over 50 years 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. 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 06/26/2018.
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Location
| State | New Hampshire |
| County | Coos |
| Nearest City | Clarksville |
| River/Stream | Roby Brook |
| Coordinates | 45.01500, -71.19750 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 330 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 1,000 acre-ft |
| Max Storage | 1,000 acre-ft |
| Normal Storage | 500 acre-ft |
| Surface Area | 50 acres |
| Drainage Area | 4 sq mi |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | NH FISH AND GAME DEPARTMENT |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 06/26/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH03560 |
| Federal ID | NH03560 |
| More Info | State Dam Safety Program |