Blanchard Pond Dam is a masonry dam located in Fairfield County, Connecticut. It carries a Significant hazard potential classification.
Dam profile
NID height · 10 ft10 ft tall and 140 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Blanchard Pond Dam
The primary purpose of Blanchard 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 Howatson (private). It impounds the Silvermine River.
The dam stands 10 feet tall and stretches 140 feet across, creates a reservoir covering 3 acres, and collects water from a drainage area of 16 square miles.
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.
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Location
| State | Connecticut |
| County | Fairfield |
| River/Stream | Silvermine River |
| Coordinates | 41.15928, -73.45217 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 140 ft |
Storage & Hydraulics
| Surface Area | 3 acres |
| Drainage Area | 16 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Howatson |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | CT01451 |
| Federal ID | CT01451 |
| More Info | State Dam Safety Program |