Wallis Pond Dam is an earth dam located in Worcester County, Massachusetts. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 16 ft16 ft tall and 350 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Wallis Pond Dam
The primary purpose of Wallis Pond 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 Tributary of Whitin Res. near Douglas.
The dam stands 16 feet tall and stretches 350 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 75 acre-feet, and collects water from a drainage area of 2 square miles.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 04/27/2015. That was over 11 years ago.
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Location
| State | Massachusetts |
| County | Worcester |
| Nearest City | Douglas |
| River/Stream | Tributary of Whitin Res. |
| Coordinates | 42.07081, -71.78039 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Length | 350 ft |
Storage & Hydraulics
| NID Storage | 75 acre-ft |
| Max Storage | 75 acre-ft |
| Normal Storage | 20 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 2 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Ma Department of Conservation & Recreation |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 04/27/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MA02532 |
| Federal ID | MA02532 |
| More Info | State Dam Safety Program |