Cox Reservoir
Cox Reservoir is an earth dam located in Windsor County, Vermont, built in 1930. It carries a Significant hazard potential classification and has a poor condition assessment.
About Cox Reservoir
The primary purpose of Cox Reservoir 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 Woodstock Aqueduct Co (private). It impounds the Ottauquechee River-tr near Woodstock.
The dam stands 20 feet tall and stretches 145 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 21 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1930, the structure is well-established, with more than 75 years of service.
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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 07/09/2013. That was over 12 years ago.
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Location
| State | Vermont |
| County | Windsor |
| Nearest City | Woodstock |
| River/Stream | Ottauquechee River-tr |
| Coordinates | 43.61577, -72.56319 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 145 ft |
| Year Completed | 1930 (96 years old) |
Storage & Hydraulics
| NID Storage | 21 acre-ft |
| Max Storage | 21 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 1 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | WOODSTOCK AQUEDUCT CO |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 07/09/2013 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | VT00234 |
| Federal ID | VT00234 |
| More Info | State Dam Safety Program |