Loch Lyndon Reservoir Dam
Loch Lyndon Reservoir Dam is an earth dam located in Merrimack County, New Hampshire, built in 1901. It carries a Low hazard potential classification.
About Loch Lyndon Reservoir Dam
The primary purpose of Loch Lyndon Reservoir Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Loch Lyndon Development (private). It impounds the Tr Todd Lake near Newbury.
The dam stands 12 feet tall and stretches 180 feet across, creates a reservoir covering 120 acres, has a maximum storage capacity of 1,440 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1901, 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. The most recent inspection on record was 11/03/2022.
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Location
| State | New Hampshire |
| County | Merrimack |
| Nearest City | Newbury |
| River/Stream | Tr Todd Lake |
| Coordinates | 43.29860, -71.96690 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 180 ft |
| Year Completed | 1901 (125 years old) |
Storage & Hydraulics
| NID Storage | 1,440 acre-ft |
| Max Storage | 1,440 acre-ft |
| Normal Storage | 360 acre-ft |
| Surface Area | 120 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 130 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | LOCH LYNDON DEVELOPMENT |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 11/03/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NH00392 |
| Federal ID | NH00392 |
| More Info | State Dam Safety Program |