Cold Brook Reservoir Dam
Cold Brook Reservoir Dam is an earth dam located in Hartford County, Connecticut, built in 1919. It carries a Significant hazard potential classification and has a fair condition assessment.
About Cold Brook Reservoir Dam
The primary purpose of Cold Brook Reservoir 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 Metropolitan District Commission (public utility). It impounds the Cold Brook near Glastonbury.
The dam stands 13 feet tall and stretches 150 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 52 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1919, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 07/25/2016.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Connecticut |
| County | Hartford |
| Nearest City | Glastonbury |
| River/Stream | Cold Brook |
| Coordinates | 41.67029, -72.55055 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 150 ft |
| Year Completed | 1919 (107 years old) |
Storage & Hydraulics
| NID Storage | 52 acre-ft |
| Max Storage | 52 acre-ft |
| Normal Storage | 52 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 1,085 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Metropolitan District Commission |
| Owner Type | Public Utility |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 07/25/2016 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT01660 |
| Federal ID | CT01660 |
| More Info | State Dam Safety Program |