Norfolk Brook Flood Control Dam #6
Norfolk Brook Flood Control Dam #6 is an earth dam located in Litchfield County, Connecticut, built in 1966. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Norfolk Brook Flood Control Dam #6
The primary purpose of Norfolk Brook Flood Control Dam #6 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Connecticut Deep (state). It impounds the Norfolk Brook near Norfolk.
The dam stands 43 feet tall and stretches 440 feet across, creates a reservoir covering 49 acres, has a maximum storage capacity of 730 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1966, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 05/06/2024.
At 43 feet, this dam is taller than 89% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Connecticut dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Connecticut |
| County | Litchfield |
| Nearest City | Norfolk |
| River/Stream | Norfolk Brook |
| Coordinates | 41.98477, -73.18903 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 43 ft |
| Dam Height | 43 ft |
| Dam Length | 440 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 730 acre-ft |
| Max Storage | 730 acre-ft |
| Normal Storage | 513 acre-ft |
| Surface Area | 49 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,740 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Connecticut DEEP |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/06/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT00485 |
| Federal ID | CT00485 |
| More Info | State Dam Safety Program |