Manville
Key Takeaway
Manville is classified as low hazard in Rhode Island. It was completed in 1860 and is 166 years old.
Physical Details
| Dam Height | 22 ft (taller than 86.9% in RI) |
| Dam Length | 250 ft |
| Dam Type | Masonry |
| Max Storage | 349 acre-ft |
| Normal Storage | 254 acre-ft |
| Surface Area | 58 acres |
| Drainage Area | 408 sq mi |
| Max Discharge | 14,000 cfs |
| Year Completed | 1860 (166 years old) |
| NID ID | RI00809 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
CUMBERLAND, TOWN OF
Local Government
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Low Hazard 18 ftFrequently Asked Questions
What is the hazard classification of Manville?
Manville is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Manville?
Manville is owned by CUMBERLAND, TOWN OF (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Manville built?
Manville was completed in 1860, making it 166 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
How tall is Manville?
Manville has a dam height of 22 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.