Lake Naraneka Dam
Lake Naraneka Dam is a concrete dam located in Fairfield County, Connecticut, built in 1937. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Lake Naraneka Dam
The primary purpose of Lake Naraneka Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Twixt Hills Homeowners Assoc., Inc. (private). It impounds the Shadow Brok Titicus River near Ridgefield.
The dam stands 18 feet tall and stretches 156 feet across, creates a reservoir covering 55 acres, has a maximum storage capacity of 677 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1937, 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 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 08/03/2022.
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Location
| State | Connecticut |
| County | Fairfield |
| Nearest City | Ridgefield |
| River/Stream | Shadow Brok Titicus River |
| Coordinates | 41.32448, -73.50912 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 156 ft |
| Year Completed | 1937 (89 years old) |
Storage & Hydraulics
| NID Storage | 677 acre-ft |
| Max Storage | 677 acre-ft |
| Normal Storage | 490 acre-ft |
| Surface Area | 55 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 230 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Twixt Hills Homeowners Assoc., Inc. |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/03/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT00223 |
| Federal ID | CT00223 |
| More Info | State Dam Safety Program |