Souhegan River Site 13 Dam
Souhegan River Site 13 Dam is an earth dam located in Hillsborough, New Hampshire, built in 1964. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Souhegan River Site 13 Dam
The primary purpose of Souhegan River Site 13 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 Tr Souhegan River near New Ipswich.
The dam stands 14 feet tall and stretches 1,120 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 278 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1964, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 11/20/2017.
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Location
| State | New Hampshire |
| County | Hillsborough |
| Nearest City | New Ipswich |
| River/Stream | Tr Souhegan River |
| Coordinates | 42.76844, -71.84309 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 1,120 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 278 acre-ft |
| Max Storage | 278 acre-ft |
| Normal Storage | 13 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,850 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | NH DES WATER DIVISION |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/20/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00432 |
| Federal ID | NH00432 |
| More Info | State Dam Safety Program |