Mahar Regional School Dam
Mahar Regional School Dam is an earth dam located in Franklin County, Massachusetts, built in 1956. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Mahar Regional School Dam
The primary purpose of Mahar Regional School Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Ralph C. Mahar Regional School District (local government). It impounds the Gulf Brook near Orange.
The dam stands 10 feet tall and stretches 360 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 15 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1956, the structure is well into its service life at over 50 years 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 12/03/2021.
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Location
| State | Massachusetts |
| County | Franklin |
| Nearest City | Orange |
| River/Stream | Gulf Brook |
| Coordinates | 42.57629, -72.30449 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Length | 360 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 15 acre-ft |
| Max Storage | 15 acre-ft |
| Normal Storage | 8 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 830 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Ralph C. Mahar Regional School District |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 12/03/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA01759 |
| Federal ID | MA01759 |
| More Info | State Dam Safety Program |