Lydall Pond #1 Dam is an earth dam located in Hartford County, Connecticut, built in 1898. It carries a Significant hazard potential classification.
Dam profile
NID height · 12 ft12 ft tall and 150 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Lydall Pond #1 Dam
The primary purpose of Lydall Pond #1 Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Town of Manchester (local government). It impounds the Lydall Brook near Manchester.
The dam stands 12 feet tall and stretches 150 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 64 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1898, the structure is over a century old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 10/07/2014. That was over 12 years ago.
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Location
| State | Connecticut |
| County | Hartford |
| Nearest City | Manchester |
| River/Stream | Lydall Brook |
| Coordinates | 41.79503, -72.50460 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 150 ft |
| Year Completed | 1898 (128 years old) |
Storage & Hydraulics
| NID Storage | 64 acre-ft |
| Max Storage | 64 acre-ft |
| Normal Storage | 64 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 1,200 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Manchester |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 10/07/2014 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CT00010 |
| Federal ID | CT00010 |
| More Info | State Dam Safety Program |