Porter Reservoir Dam
Porter Reservoir Dam is an earth dam located in Hartford County, Connecticut, built in 1902. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Porter Reservoir Dam
The primary purpose of Porter 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 Town Of Manchester (local government). It impounds the Porter Brook Trib near Manchester.
The dam stands 32 feet tall and stretches 600 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 100 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1902, 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. An emergency action plan is in place for this dam. The most recent inspection on record was 07/30/2019.
At 32 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Connecticut |
| County | Hartford |
| Nearest City | Manchester |
| River/Stream | Porter Brook Trib |
| Coordinates | 41.77611, -72.48618 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 600 ft |
| Year Completed | 1902 (124 years old) |
Storage & Hydraulics
| NID Storage | 100 acre-ft |
| Max Storage | 100 acre-ft |
| Normal Storage | 45 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 970 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Town of Manchester |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/30/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CT00014 |
| Federal ID | CT00014 |
| More Info | State Dam Safety Program |