Lake Mauweehoo Dam
Lake Mauweehoo Dam is an earth dam located in Fairfield County, Connecticut, built in 1906. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Lake Mauweehoo Dam
The primary purpose of Lake Mauweehoo Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lake Mauweehoo Club, Inc (private). It impounds the Glenn Brook near Sherman.
The dam stands 22 feet tall and stretches 280 feet across, creates a reservoir covering 30 acres, has a maximum storage capacity of 198 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1906, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 06/17/2017.
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Location
| State | Connecticut |
| County | Fairfield |
| Nearest City | Sherman |
| River/Stream | Glenn Brook |
| Coordinates | 41.54228, -73.49592 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 280 ft |
| Year Completed | 1906 (120 years old) |
Storage & Hydraulics
| NID Storage | 198 acre-ft |
| Max Storage | 198 acre-ft |
| Normal Storage | 193 acre-ft |
| Surface Area | 30 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 89 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Lake Mauweehoo Club, Inc |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/17/2017 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CT00321 |
| Federal ID | CT00321 |
| More Info | State Dam Safety Program |