Perry-jackson is an earth dam located in Addison County, Vermont, built in 1988. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 19 ft19 ft tall and 545 ft long. 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 Perry-jackson
The primary purpose of Perry-jackson is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Middlebury College (private). It impounds the Ledge Creek near Cornwall.
The dam stands 19 feet tall and stretches 545 feet across, creates a reservoir covering 25 acres, has a maximum storage capacity of 334 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1988, the structure is 38 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 08/02/2012. That was over 14 years ago.
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Location
| State | Vermont |
| County | Addison |
| Nearest City | Cornwall |
| River/Stream | Ledge Creek |
| Coordinates | 44.00719, -73.20139 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 16 ft |
| Dam Length | 545 ft |
| Year Completed | 1988 (38 years old) |
Storage & Hydraulics
| NID Storage | 334 acre-ft |
| Max Storage | 334 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Middlebury College |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 08/02/2012 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | VT00287 |
| Federal ID | VT00287 |
| More Info | State Dam Safety Program |