Mountain Pond Dam
Mountain Pond Dam is an earth dam located in Fairfield County, Connecticut, built in 1901. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Mountain Pond Dam
The primary purpose of Mountain Pond Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Town Of Bethel (local government). It impounds the Sympaug Brook Trib near Danbury.
The dam stands 15 feet tall and stretches 105 feet across, creates a reservoir covering 14 acres, has a maximum storage capacity of 165 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1901, 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 09/27/2023.
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Location
| State | Connecticut |
| County | Fairfield |
| Nearest City | Danbury |
| River/Stream | Sympaug Brook Trib |
| Coordinates | 41.35546, -73.43718 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 105 ft |
| Year Completed | 1901 (125 years old) |
Storage & Hydraulics
| NID Storage | 165 acre-ft |
| Max Storage | 165 acre-ft |
| Normal Storage | 87 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 69 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Town of Bethel |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/27/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT00069 |
| Federal ID | CT00069 |
| More Info | State Dam Safety Program |