High Risk Dams in Massachusetts

Massachusetts has 46 high hazard dams with a condition assessment of poor or unsatisfactory. These are dams where failure would probably cause loss of human life and where recognized safety deficiencies have been identified.

Of the 318 high hazard dams in Massachusetts, 46 (14%) have concerning condition ratings — 36 rated poor and 10 rated unsatisfactory.

Dam	County	Height (ft)	Condition	Purpose	Year
Notch Reservoir Dam	Berkshire	64	Poor	Water Supply	1897
South Reservoir Dam	Middlesex	45	Poor	Water Supply	1882
Haskell Pond Dam	Essex	43	Poor	Water Supply	1903
Sandwash Reservoir Dam	Berkshire	41	Poor	Water Supply	1936
Overlook Reservoir Dam	Worcester	41	Poor		1871
Scott Reservoir Dam	Worcester	40	Poor	Water Supply	1875
Mount Williams Reservoir Dam & Dike	Berkshire	40	Poor	Water Supply	1914
Fall Brook Reservoir Dam And Dike	Worcester	37	Poor	Water Supply	1896
Stevens Pond Dam	Worcester	30	Poor	Recreation	1864
Whitney Pond Dam	Worcester	27	Poor	Recreation	1880
Framingham Reservoir No. 2 Dam	Middlesex	27	Poor		1878
Bel Air Dam	Berkshire	27	Unsatisfactory	Recreation
Fort Meadow Reservoir Dam	Middlesex	26	Poor	Recreation	1848
North Reservoir Dam	Middlesex	25	Poor	Water Supply	1874
Willett Pond Dam	Norfolk	25	Poor	Recreation	1913
Damon Pond Dam	Middlesex	24	Poor	Recreation	1938
Brick City Mill Pond Dam	Worcester	23	Unsatisfactory	Recreation
Rochdale Pond Dam	Worcester	20	Poor	Recreation
Stockbridge Bowl Dam	Berkshire	19	Poor	Recreation	1880
Riiska Brook Dam	Berkshire	19	Poor	Recreation	1952
Fisherville Pond Dam	Worcester	19	Poor	Flood Risk Reduction	1882
Bird Pond Dam	Norfolk	19	Poor	Recreation	1800
Parker Mills Pond Dam	Plymouth	19	Poor	Recreation
Chimney Pond Dam	Worcester	18	Unsatisfactory	Recreation
Main Street Dam	Middlesex	18	Poor	Recreation	1882
Upper Banjo Pond Dam	Essex	17	Poor	Recreation	1908
Mill Pond Dam	Plymouth	17	Poor	Recreation	1850
Moulton Pond Dam	Worcester	16	Unsatisfactory	Recreation
Manchester Pond Reservoir South Dike	Bristol	16	Poor	Water Supply	1963
Fernwood Lake North Dam	Essex	16	Poor	Recreation	1877
Russell Pond Dam	Plymouth	16	Unsatisfactory	Recreation
Weld Pond Dam	Norfolk	15	Poor	Recreation	1870
Barre Reservoir Dam & Dike	Worcester	15	Poor	Recreation
Tremont Mill Pond	Plymouth	15	Unsatisfactory	Hydroelectric	1845
Patch Pond Dam	Worcester	14	Unsatisfactory	Recreation
Ellis Brett Pond Dam	Plymouth	14	Poor	Recreation	1930
Charles River Dam At South Natick	Middlesex	14	Poor	Recreation
Hager Pond Dam	Middlesex	13	Unsatisfactory	Recreation	1710
Manchester Pond Reservoir East Dike	Bristol	12	Poor	Water Supply	1963
Sabrina Lake West Dike	Norfolk	12	Unsatisfactory	Recreation	1870
Fernwood Lake West Dam	Essex	11	Poor	Recreation	1877
Houghton Pond Dam	Middlesex	10	Poor	Recreation	1898
Monument Pond Dam	Bristol	10	Unsatisfactory	Fire Protection, Stock, Or Small Fish Pond
Morse Pond Dam	Bristol	9	Poor	Recreation	1920
Brierly Pond Dike	Worcester	8	Poor	Recreation
Fernwood Lake East Dam	Essex	5	Poor	Recreation	1877

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