Water Supply Dams in Massachusetts

Massachusetts has 231 water supply dams, of which 116 carry a high hazard classification. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area.

#	Dam	County	Height (ft)	Hazard	Condition	Year
1	Cobble Mountain Reservoir Dam	Hampden	245	High	Satisfactory	1930
2	Quabbin Winsor Dam	Hampshire	170	High	Satisfactory	1939
3	Quabbin Goodnough Dike	Hampshire	135	High	Satisfactory	1938
4	Tighe Carmody Reservoir Dam	Hampshire	130	High	Satisfactory	1955
5	Wachusett Reservoir Dam	Worcester	114	High	Satisfactory	1906
6	Farnham Reservoir Dam	Berkshire	105	High	Fair	1910
7	Granville Reservoir Dam	Hampden	85	High	Satisfactory	1930
8	Wachusett Reservoir North Dike	Worcester	85	High	Satisfactory	1904
9	Lovell Reservoir Dam	Worcester	84	High	Fair	1929
10	Francis P. Ryan Dam	Franklin	80	High	Fair	1970
11	Borden Brook Reservoir Dam	Hampden	77	High	Satisfactory	1909
12	Sudbury Reservoir Dam	Worcester	77	High	Satisfactory	1899
13	Upper Sackett Reservoir Dam	Berkshire	76	High	Satisfactory	1947
14	Cleveland Brook Reservoir Dam	Berkshire	71	High	Satisfactory	1949
15	Pine Hill Reservoir Dam	Worcester	70	High	Fair	1924
16	Conway Reservoir Dam	Franklin	65	High	Satisfactory	1975
17	Notch Reservoir Dam	Berkshire	64	High	Poor	1897
18	Lynde Brook Reservoir Dam	Worcester	61	High	Satisfactory	1876
19	Black Brook Pl-566 Flood Control Dam	Hampden	60	High	Satisfactory	1971
20	Cohasse Brook Reservoir Dam	Worcester	60	High	Satisfactory	1967
21	Upper Glen Reservoir Dam	Franklin	59	Significant	Satisfactory	1904
22	Intake Dam	Hampden	59	Low	Fair	1909
23	Leahey (upper) Reservoir Dam And Dike	Berkshire	57	High	Satisfactory	1965
24	Holden Reservoir Dam No. 2	Worcester	57	High	Satisfactory	1900
25	Prospect Hill Reservoir Dam	Bristol	54	Significant	Satisfactory	1956
26	Dykes Meadow Dam	Essex	54	Significant	Satisfactory	1894
27	Windsor Reservoir Dam	Berkshire	51	High	Satisfactory	1865
28	Bickford Pond Dam	Worcester	51	High	Fair	1971
29	Mill Pond Dam	Middlesex	50	High	Satisfactory	1973
30	Perley Brook Reservoir Dam	Worcester	50	High	Satisfactory	1962
31	Somerset Reservoir Dam	Bristol	48	High	Fair	1965
32	Fells Reservoir Dam No. 8	Middlesex	48	High	Satisfactory	1898
33	Fells Reservoir Dam No. 1 (extensively Filled D/s Area)	Middlesex	48	Low	Satisfactory
34	Holden Reservoir Dam No. 1	Worcester	47	High	Fair	1883
35	Mare Meadow Reservoir Dam	Worcester	47	High	Fair	1955
36	South Reservoir Dam	Middlesex	45	High	Poor	1882
37	Weston Reservoir Dam	Middlesex	45	High	Satisfactory
38	Quinapoxet Reservoir Dam	Worcester	45	High	Satisfactory	1953
39	Wachusett Reservoir South Dike	Worcester	45	High	Satisfactory	1906
40	Goose Cove Northwest Dike	Essex	44	High	Fair	1963
41	Breeds Pond Outlet Dam No. 5	Essex	44	High	Fair	1870
42	Haskell Pond Dam	Essex	43	High	Poor	1903
43	Walden Pond Outlet Dam	Essex	43	High	Fair	1890
44	Babson Reservoir Dam	Essex	43	High	Satisfactory	1930
45	Norumbega Reservoir Dam No. 1	Middlesex	42	High	Fair	1940
46	Sandwash Reservoir Dam	Berkshire	41	High	Poor	1936
47	Cherry Valley Dam	Hampden	41	High	Fair	1877
48	Hill Reservoir Dam	Hampshire	41	Significant	Fair	1934
49	Echo Lake Dam	Middlesex	41	High	Satisfactory	1881
50	Mount Williams Reservoir Dam & Dike	Berkshire	40	High	Poor	1914
51	Copicut Reservoir Dam	Bristol	40	High	Fair	1971
52	Mill Pond North Dike	Middlesex	40	Significant	Satisfactory	1973
53	Scott Reservoir Dam	Worcester	40	High	Poor	1875
54	West Parish Filter No. 3 Dam	Hampden	39	High	Fair	1910
55	Mill Pond South Dike	Middlesex	39	High	Satisfactory	1973
56	Kendall Reservoir Dam	Worcester	39	High	Fair	1911
57	Kettle Brook Reservoir No. 3 Dam	Worcester	38	High	Fair	1902
58	Southbridge Reservoir No. 5 Dam	Worcester	38	Significant	Satisfactory	1938
59	Egypt Reservoir Dam	Berkshire	37	High	Satisfactory	1894
60	Putnamville Reservoir Dam	Essex	37	High	Satisfactory	1954
61	Grandin Reservoir Dam	Franklin	37	High	Satisfactory	1935
62	Fall Brook Reservoir Dam And Dike	Worcester	37	High	Poor	1896
63	Upper Root Reservoir Dam	Berkshire	36	High	Satisfactory	1960
64	Middle Roberts Meadow Reservoir Dam	Hampshire	36	High	Fair	1894
65	Kettle Brook Reservoir No. 4 Dam	Worcester	36	High	Satisfactory	1904
66	Goose Cove North Dam	Essex	35	High	Fair	1963
67	Mclean Reservoir Dam	Hampden	35	Significant	Satisfactory	1903
68	Lower Root Reservoir Dam	Berkshire	34	High	Satisfactory
69	Norumbega Reservoir East Dike	Middlesex	34	High	Satisfactory	1940
70	Norumbega Reservoir Dike No. 4	Middlesex	34	High	Satisfactory	1940
71	Norumbega Reservoir Dike No. 3	Middlesex	34	Significant	Satisfactory	1940
72	Norumbega Reservoir Dike No. 2	Middlesex	34	Significant	Satisfactory	1940
73	Horse Pond Dam	Worcester	34	Significant	Satisfactory
74	Atkins Reservoir Dam	Franklin	33	High	Fair	1930
75	Mountain Street Reservoir Dam	Hampshire	33	High	Fair	1902
76	Williamstown Reservoir Dam	Berkshire	32	High	Satisfactory	1898
77	Horse Shoe Regulating Dam	Franklin	32	Low		1938
78	Stony Brook Reservoir Dam	Middlesex	32	High	Satisfactory	1887
79	Carpenter Reservoir Dam	Worcester	32	Significant	Satisfactory	1888
80	Simonds Pond Dam	Worcester	32	Significant	Satisfactory
81	East Branch Swift Regulating Dam	Worcester	32	Low	Fair
82	Cambridge Reservoir Dam	Middlesex	31	High	Satisfactory	1897
83	Reservoir No. 5 Dam	Worcester	31	Low	Satisfactory	1900
84	Indian Hill Reservoir Dam And Dikes	Essex	30	Low	Fair	1981
85	Breeds Pond Lantern Rock Dike No. 4	Essex	30	High	Fair	1914
86	South Deerfield Water Supply Dam	Franklin	30	Significant	Fair
87	West Parish Filter No. 2 Dam	Hampden	30	Significant	Poor	1910
88	Provin Mountain Reservoir Dam	Hampden	30	High	Satisfactory	1910
89	Mountain Street Reservoir Dikes	Hampshire	30	Low	Poor	1905
90	Reservoir No. 4 Dam	Worcester	30	Significant	Satisfactory	1965
91	Belmont Reservoir Dam	Berkshire	29	High	Fair	1889
92	Bassett Brook Reservoir Dam	Berkshire	29	Significant	Fair	1967
93	Framingham Reservoir No. 3 Dam	Middlesex	29	High	Satisfactory	1880
94	Aaron River Dam	Norfolk	29	High	Satisfactory	1978
95	Manchester Pond Reservoir Dam	Bristol	28	High	Fair	1963
96	Carlson Quarry Reservoir Dam	Essex	28	Low	Satisfactory	1953
97	Lawrence Reservoir Dam	Essex	28	Low	Satisfactory	1875
98	Shelburne Falls Fire District Reservoir Dam	Franklin	28	Significant	Fair	1921
99	West Parish Filter No. 1 Dam	Hampden	28	Significant	Fair	1924
100	Ashby Reservoir Dam	Middlesex	28	Significant	Fair	1918

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