Knapp Brook Site No. 2 is an earth dam located in Windsor County, Vermont, built in 1961. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 27 ft27 ft tall and 540 ft long, taller than 59% of U.S. dams with a recorded height. 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 Knapp Brook Site No. 2
The primary purpose of Knapp Brook Site No. 2 is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by State of Vermont - Dfw (state). It impounds the Knapp Brook near Cavendish.
The dam stands 27 feet tall and stretches 540 feet across, creates a reservoir covering 35 acres, has a maximum storage capacity of 623 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1961, the structure is well into its service life at over 50 years 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 07/26/2016. That was over 10 years ago.
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Location
| State | Vermont |
| County | Windsor |
| Nearest City | Cavendish |
| River/Stream | Knapp Brook |
| Coordinates | 43.44745, -72.56582 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 22 ft |
| Dam Length | 540 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 623 acre-ft |
| Max Storage | 623 acre-ft |
| Surface Area | 35 acres |
| Drainage Area | 2 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | State of Vermont - Dfw |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 07/26/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | VT00077 |
| Federal ID | VT00077 |
| More Info | State Dam Safety Program |