Dams in Washington County, Rhode Island
54Total Dams
18High Hazard
22Significant
Dam Safety in Washington County, Rhode Island
Washington County has 54 dams tracked in the National Inventory of Dams. Of these, 18 are classified as high hazard — meaning failure would probably cause loss of human life. Another 22 carry a significant hazard classification. Currently, 28 dams have a condition assessment of poor or unsatisfactory.
The average dam in Washington County is 129 years old. The most common purpose is recreation. The tallest dam is Boone Lake at 21 ft.
Explore more: Oldest dams in Rhode Island · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Boone Lake | High | Fair | 21 | Recreation | 1885 |
| Locustville Pond | High | Fair | 18 | Hydroelectric | 1885 |
| Metcalf Wildlife Marsh | High | Fair | 18 | Recreation | 1963 |
| Yawgoog Pond | High | Fair | 17 | Recreation | 1885 |
| Peace Dale Pond | High | Fair | 16 | Other | 1847 |
| Wyoming Upper | High | Satisfactory | 15 | Fish and Wildlife Pond | 1885 |
| Silver Spring Lake | High | Satisfactory | 12 | Fish and Wildlife Pond | 1885 |
| Yorker Mill Pond | High | Fair | 12 | Other | 1855 |
| Hefler Farm Pond | High | Poor | 11 | Fire Protection, Stock, Or Small Fish Pond | 1972 |
| Asa Pond | High | Fair | 10 | Recreation | |
| Carr Pond | High | Satisfactory | 10 | Recreation | 1800 |
| Wakefield Pond | High | Poor | 9 | Other | |
| White's Pond | High | Fair | 8 | Fish and Wildlife Pond | |
| Slocum Reservoir | High | Fair | 8 | Recreation | 1855 |
| Rodman Mill | High | Poor | 0 | ||
| Shady Lea Mill | High | Not Rated | 0 | ||
| Slocum Woods | High | Fair | 0 | Irrigation | 1993 |
| Slocum Road Upper | High | Poor | 0 | ||
| Alton Pond | Significant | Not Rated | 19 | Other | 1920 |
| Block Island Rod & Gun Club Pond | Significant | Fair | 14 | Recreation | 1950 |
| Blue Pond | Significant | Not Rated | 13 | Fish and Wildlife Pond | 1885 |
| Horseshoe Falls | Significant | Not Rated | 13 | Other | 1885 |
| Browning Mill Pond | Significant | Poor | 13 | Fish and Wildlife Pond | 1885 |
| Sprague Pond | Significant | Not Rated | 12 | ||
| Barberville Pond | Significant | Poor | 11 | Fish and Wildlife Pond | 1882 |
| Indian Run | Significant | Fair | 10 | ||
| Ashville Pond | Significant | Poor | 10 | Recreation | 1885 |
| Hamilton Reservoir | Significant | Poor | 10 | Fish and Wildlife Pond | |
| Wood River Junction | Significant | Poor | 10 | Recreation | 1860 |
| Wincheck Pond | Significant | Poor | 9 | Recreation | 1885 |
| Edward's Pond | Significant | Poor | 9 | ||
| Langworthy Pond | Significant | Fair | 9 | Other | |
| Mill | Significant | Fair | 8 | ||
| Belleville Pond | Significant | Fair | 8 | Recreation | 1800 |
| Rocky Brook Reservoir | Significant | Poor | 8 | Other | |
| Glen Rock Reservoir | Significant | Fair | 8 | Other | 1860 |
| Hoxie Farm Pond | Significant | Fair | 7 | Fire Protection, Stock, Or Small Fish Pond | 1951 |
| Harris Pond | Significant | Fair | 5 | ||
| Secret Lake | Significant | Poor | 0 | ||
| Cross Mills | Significant | Poor | 0 | ||
| Breakheart Pond | Low | Poor | 15 | Fish and Wildlife Pond | 1900 |
| Woodville Pond | Low | Poor | 12 | Recreation | 1933 |
| Indian Lake | Low | Poor | 12 | Recreation | 1900 |
| Carolina Pond | Low | Poor | 11 | Other | 1840 |
| Potter Hill | Low | Poor | 11 | Other | 1903 |
| Bethel Pond | Low | Poor | 11 | Other | |
| Long Pond | Low | Poor | 10 | Other | 1885 |
| Potowomut Pond | Low | Poor | 10 | Fish and Wildlife Pond | 1885 |
| Dolly Pond | Low | Poor | 9 | Recreation | |
| James Pond | Low | Poor | 9 | Other | 1885 |
| Millbrook Pond | Low | Poor | 8 | Recreation | 1895 |
| Wertz + Viall Pond | Low | Poor | 8 | Recreation | 1957 |
| Great Swamp Goose Marsh | Low | Poor | 8 | Fish and Wildlife Pond | 1960 |
| Mt. Tom Wildlife Marsh | Low | Poor | 8 | Fish and Wildlife Pond | 1964 |