Water Supply Dams in Washington

Washington has 47 water supply dams, of which 33 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	Tolt River - South Fork	King	200	High	Fair	1962
2	Casad Dam	Kitsap	190	High	Fair	1956
3	Wynoochee	Grays Harbor	175	High	Satisfactory	1972
4	Icon Materials Pond 4	King	140	High	Fair	1997
5	Judy Reservoir Dam B	Skagit	80	High	Fair	1946
6	Chaplain Lake South Dam	Snohomish	75	High	Satisfactory	1930
7	Indian Creek Dam	Pacific	73	High	Poor	1989
8	Judy Reservoir Dam A	Skagit	61	High	Fair	1946
9	Malinowski Dam	Grays Harbor	51	High	Satisfactory	1963
10	Lords Lake North Dam	Jefferson	42	High	Satisfactory	1957
11	Lords Lake East Dam	Jefferson	42	High	Poor	1956
12	Dohman Creek Dam	Pacific	41	Low		1978
13	Eden Creek Dam	Pierce	40	Low		1937
14	Fairview Reservoir No 1	Grays Harbor	35	High	Poor	1915
15	Seattle City Volunteer Park Reservoir	King	35	High	Satisfactory	1901
16	Regulating Basin South Dam	King	35	High	Satisfactory	1962
17	Chaplain Lake North Dam	Snohomish	35	High	Satisfactory	1940
18	Buck Mountain Reservoir Dam No 2	San Juan	32	High	Fair	1985
19	College Hill Reservoir	Grays Harbor	31	High	Poor	1899
20	Beacon Hill Reservoir	Grays Harbor	30	High	Poor	1935
21	Fresh Water Pond	Jefferson	30	Significant	Not Available
22	Morse Lake Overflow Dike	King	30	Low		1904
23	Lake Forest Park Reservoir	King	30	High	Satisfactory	1962
24	Shell Refinery Water Storage Reservoir	Skagit	28	Low		1958
25	Bitter Lake Reservoir	King	27	High	Satisfactory	1958
26	Chinook Water District Dam	Pacific	26	Low		1991
27	Ice Harbor Ranch Block 211 Reservoir	Franklin	25	Low		2013
28	Fairview Reservoir No 2	Grays Harbor	25	High	Fair	1921
29	Peabody Heights Reservoir	Clallam	24	High	Satisfactory	1925
30	Everett Reservoir No 4	Snohomish	24	High	Satisfactory	1952
31	Roosevelt Reservoir	King	23	High	Satisfactory	1910
32	Chambers Creek Reservoir Dam	Pierce	22	Low		1970
33	Everett Reservoir No 3	Snohomish	22	High	Satisfactory	1923
34	Youngs Lake New Inlet Dam	King	20	High	Satisfactory	1926
35	Buck Mountain Reservoir Dam No 3	San Juan	20	High	Fair	1985
36	Bremerton Reservoir No 4	Kitsap	17	High	Satisfactory	1917
37	Buck Mountain Reservoir Dam No 1	San Juan	17	High	Fair	1985
38	West Fork Dam	Grays Harbor	16	Significant	Fair	1956
39	Youngs Lake Cascades Dam	King	16	Significant	Satisfactory	1950
40	Scabrock Feeders Dam 6a	Adams	15	Low		1970
41	Roche Harbor Lake Dam	San Juan	15	High	Satisfactory	2013
42	Frozen Lake Dam	Pierce	14	High	Not Available	1930
43	Centralia Power Plant Surge Pond Dam	Lewis	13	Low		1971
44	Tesoro Water Storage Reservoir	Skagit	11	High	Fair	1958
45	Upper Snow Dam	Chelan	10	Low	Poor	1939
46	Youngs Lake Outlet Dam	King	10	High	Satisfactory	1921
47	Nada Dam	Chelan	9	Low	Satisfactory	1939

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