Wepawaug Reservoir Dam
Wepawaug Reservoir Dam is an earth dam located in New Haven County, Connecticut, built in 1911. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Wepawaug Reservoir Dam
The primary purpose of Wepawaug 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 South Central Ct Rwa (public utility). It impounds the Wepawaug River near Orange.
The dam stands 18 feet tall and stretches 1,331 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 117 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1911, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 11/01/2022.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Connecticut |
| County | New Haven |
| Nearest City | Orange |
| River/Stream | Wepawaug River |
| Coordinates | 41.30421, -73.03000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 1,331 ft |
| Year Completed | 1911 (115 years old) |
Storage & Hydraulics
| NID Storage | 117 acre-ft |
| Max Storage | 117 acre-ft |
| Normal Storage | 117 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 1,800 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | South Central CT RWA |
| Owner Type | Public Utility |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/01/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CT00086 |
| Federal ID | CT00086 |
| More Info | State Dam Safety Program |