Tarrywile Lake Dam
Tarrywile Lake Dam is an earth dam located in Fairfield County, Connecticut, built in 1900. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Tarrywile Lake Dam
The primary purpose of Tarrywile Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City Of Danbury (local government). It impounds the Parks Pond Brook near Danbury.
The dam stands 12 feet tall and stretches 180 feet across, creates a reservoir covering 13 acres, has a maximum storage capacity of 100 acre-feet, and collects water from a drainage area of 320 square miles. Completed in 1900, 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. An emergency action plan is in place for this dam. The most recent inspection on record was 07/24/2019.
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Location
| State | Connecticut |
| County | Fairfield |
| Nearest City | Danbury |
| River/Stream | Parks Pond Brook |
| Coordinates | 41.37674, -73.45868 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 180 ft |
| Year Completed | 1900 (126 years old) |
Storage & Hydraulics
| NID Storage | 100 acre-ft |
| Max Storage | 100 acre-ft |
| Normal Storage | 55 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 320 sq mi |
| Max Discharge | 235 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | City of Danbury |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/24/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT00071 |
| Federal ID | CT00071 |
| More Info | State Dam Safety Program |