Giles Pond
Giles Pond is a masonry dam located in Merrimack County, New Hampshire, built in 1904. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Giles Pond
The primary purpose of Giles Pond is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Franklin Falls Hydro Electric Corporation (private). It impounds the Salmon Brook near Franklin.
The dam stands 18 feet tall and stretches 245 feet across, creates a reservoir covering 43 acres, has a maximum storage capacity of 860 acre-feet, and collects water from a drainage area of 25 square miles. Completed in 1904, the structure is over a century 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 05/24/2018.
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Location
| State | New Hampshire |
| County | Merrimack |
| Nearest City | Franklin |
| River/Stream | Salmon Brook |
| Coordinates | 43.48680, -71.64970 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 245 ft |
| Year Completed | 1904 (122 years old) |
Storage & Hydraulics
| NID Storage | 860 acre-ft |
| Max Storage | 860 acre-ft |
| Normal Storage | 860 acre-ft |
| Surface Area | 43 acres |
| Drainage Area | 25 sq mi |
| Max Discharge | 1,800 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Franklin Falls Hydro Electric Corporation |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/24/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00177 |
| Federal ID | NH00177 |
| More Info | State Dam Safety Program |