Riley Pond Dam
Riley Pond Dam is an earth dam located in Worcester County, Massachusetts. It carries a Significant hazard potential classification and has a fair condition assessment.
About Riley Pond Dam
The primary purpose of Riley Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Town Of Northbridge (local government). It impounds the Unnamed Tributary Of The Mumford River near Northbridge.
The dam stands 8 feet tall and stretches 164 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 52 acre-feet, and collects water from a drainage area of 0 square miles.
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 07/30/2021.
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Location
| State | Massachusetts |
| County | Worcester |
| Nearest City | Northbridge |
| River/Stream | Unnamed Tributary Of The Mumford River |
| Coordinates | 42.10448, -71.66852 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Length | 164 ft |
Storage & Hydraulics
| NID Storage | 52 acre-ft |
| Max Storage | 52 acre-ft |
| Normal Storage | 44 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 85 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Town of Northbridge |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 07/30/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA02862 |
| Federal ID | MA02862 |
| More Info | State Dam Safety Program |