Natural Bridge Dam
Natural Bridge Dam is a masonry dam located in Berkshire County, Massachusetts. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Natural Bridge Dam
The primary purpose of Natural Bridge Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Ma Department Of Conservation & Recreation (state). It impounds the Hudson Brook near N. Adams.
The dam stands 25 feet tall and stretches 130 feet across, creates a reservoir covering 0 acres, has a maximum storage capacity of 13 acre-feet, and collects water from a drainage area of 7 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 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 11/18/2022.
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Location
| State | Massachusetts |
| County | Berkshire |
| Nearest City | N. Adams |
| River/Stream | Hudson Brook |
| Coordinates | 42.70814, -73.09275 |
Physical Characteristics
| Dam Type | Masonry |
| NID Height | 25 ft |
| Dam Length | 130 ft |
Storage & Hydraulics
| NID Storage | 13 acre-ft |
| Max Storage | 13 acre-ft |
| Normal Storage | 3 acre-ft |
| Surface Area | 0 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 1,205 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | MA Department of Conservation & Recreation |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/18/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MA02618 |
| Federal ID | MA02618 |
| More Info | State Dam Safety Program |