Flood Control Dams in Washington

Washington has 132 flood control dams, of which 94 carry a high hazard classification. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate.

#	Dam	County	Height (ft)	Hazard	Condition	Year
1	Grand Coulee Dam	Okanogan	550	High	Not Available	1941
2	Mud Mountain Dam	King	425	High	Not Available	1948
3	Asamera Cannon Mine Tailings Dam	Chelan	340	High	Satisfactory	1986
4	Tieton Dam	Yakima	319	High	Not Available	1925
5	Mount St. Helens Sediment Retention Structure	Cowlitz	239	High	Not Available	1988
6	Howard A. Hanson Dam	King	235	High	Not Available	1962
7	O'sullivan Dam	Grant	200	High	Not Available	1949
8	Spirit Lake Outlet Tunnel	Skamania	184	Undetermined	Not Rated	1985
9	North Dam	Grant	145	High	Not Available	1951
10	Mill Creek Storage Dam	Walla Walla	145	High	Not Available	1942
11	Pinto Dam	Grant	130	High	Not Available	1948
12	Keechelus Dam	Kittitas	128	High	Not Available	1917
13	Zintel Canyon Dam	Benton	125	High	Satisfactory	1992
14	Dry Falls Dam	Grant	123	High	Not Available	1949
15	Kachess Dam	Kittitas	115	High	Not Available	1912
16	60th Street Stormwater Detention Dam	Snohomish	104	Significant	Satisfactory	1988
17	Bumping Lake Dam	Yakima	61	High	Not Available	1910
18	Newcastle Railroad Embankment Dam	King	55	High	Poor	1900
19	Garrison Creek Stormwater Detention Dam	King	55	Significant	Satisfactory	1991
20	Boeing Creek Park North Pond Dam	King	54	High	Satisfactory	1998
21	Nookachamps Hills Dam	Skagit	54	Significant	Poor	1969
22	Boeing Flood Control Dam	Snohomish	48	High	Satisfactory	1967
23	Bremerton National Airport Detention Dam	Kitsap	47	Low		1995
24	Boeing Creek M1 Detention Dam	King	40	High	Satisfactory	1983
25	Seaway Center Stormwater Detention Dam	Snohomish	39	Significant	Satisfactory	1989
26	Spokane Hutterian Brethren Dam	Spokane	39	High	Poor	2006
27	Issaquah Highlands Reid Pond Dam	King	38	High	Fair	2003
28	Seattle Port Lagoon No 3	King	32	High	Satisfactory	2001
29	Mccormick North Phase I East Pond	Kitsap	32	High	Fair	2009
30	I405 Coal Creek Stormwater Detention Da	King	31	Low		1987
31	Cedar Way Stormwater Detention Dam	Snohomish	31	High	Fair	1985
32	Weyerhaeuser Enumclaw Flood Control Dam	King	30	High	Fair	1993
33	Garrison Creek 98th Avenue Detention D	King	30	High	Fair	1996
34	Centralia Coal Mine Pond 46 Dam	Lewis	30	High	Fair	2004
35	Issaquah Highlands Np2 Pond Dam	King	28	High	Fair	2002
36	Hannegan Road Detention Basin	Whatcom	28	High	Satisfactory	1996
37	High Woodlands Stormwater Detention Dam	King	27	Low		1991
38	Southwest Genesee Street Detention Dam	King	27	High	Fair	1974
39	Issaquah Highlands South Pond Dam	King	27	High	Fair	2003
40	Centralia Coal Mine Dam No 32b	Thurston	27	Low	Fair	1991
41	Redmond Ridge Cedar Dam	King	26	High	Fair	2000
42	Bellevue Detention Pond 179 North	King	26	Low		1977
43	Locke Dam	Pend Oreille	25	High	Satisfactory	1973
44	Issaquah Highlands Npe Pond	King	24	High	Fair	2003
45	Talus P5 Stormwater Detention Dam	King	24	High	Satisfactory	2002
46	Lunds Gulch Creek Regional Stormwater Detention Pond	Snohomish	24	High	Fair	1992
47	Mccormick North Phase 3 Storm Pond	Kitsap	23	High		2023
48	South Fork Mccorkle Creek Detention Dam	Cowlitz	22	High	Fair	1989
49	Mill Creek Canyon Stormwater Detention D	King	22	High	Satisfactory	1982
50	Issaquah Highlands Falls Pond Dam	King	22	High	Satisfactory	2008
51	Pigeon Creek No 1 Stormwater Detention D	Snohomish	22	Significant	Fair	1990
52	Tukwila South Project South Pond	King	21	Low	Satisfactory	2011
53	Upper Mill Creek Stormwater Detention Da	King	21	High	Satisfactory	1990
54	Trossachs Detention Pond Pc-2	King	21	High	Satisfactory	2002
55	Harbor Hill North Pond	Pierce	21	High	Satisfactory	2014
56	St Clair Stormwater Detention Dam	Whatcom	20	High	Satisfactory	1986
57	South 336th Street Stormwater Dam No 2	King	19	High	Fair	1996
58	Des Moines Ck Reg Det Facility East Berm	King	18	High	Satisfactory	2009
59	Johnson Pond Dam	King	18	High	Fair	2011
60	Des Moines Creek Stormwater Detention Da	King	18	High	Satisfactory	1989
61	Vaagen Mitigation Control Structure	Pend Oreille	18	Low		1990
62	Mccormick Woods Pond Rc-8	Kitsap	17	High	Satisfactory	2017
63	Miller Creek Regional Detention Facility	King	16	Significant	Satisfactory	1992
64	Bellevue Detention Pond 165	King	16	Low		1983
65	Snoqualmie Ridge Osprey Ct Pond D1	King	16	High	Satisfactory	1999
66	Centralia Coal Mine Pond 46a Dam	Lewis	16	High	Satisfactory	2004
67	Silver Lake Dam	Cowlitz	15	Low		1971
68	Billingsley Dam	Douglas	15	Low	Satisfactory	1949
69	Mckay Dam	Douglas	15	Low		1961
70	Aldarra Pond Dfr1	King	15	Low		2001
71	Trossachs Detention Pond Pc-3	King	15	High	Satisfactory	1999
72	Panther Lake Ballfield Dam	King	15	High	Fair	1994
73	Peterson Stormwater Detention Dam	King	15	High	Satisfactory	1988
74	Sinclair Ridge Storm Pond	Kitsap	15	High		2024
75	Latitude 47 Commerce Center Stormwater Pond	Pierce	15	High	Fair	2020
76	Cedar Heights Dam	Skagit	15	High	Fair	2007
77	Lindblad Brothers Dam	Grant	14	Low	Fair	1940
78	Redmond Ridge East Pond Srn 2 No 1	King	14	High	Fair	2008
79	Wright Creek Stormwater Pond Dam	Kitsap	14	Significant	Satisfactory	2006
80	Eaglemont Storm Pond	Snohomish	14	High	Poor	2014
81	Silver Firs Detention Pond No 3	Snohomish	14	High	Satisfactory	2000
82	Williams Dam	Spokane	14	Low		1982
83	Mill Creek Storage Dam - Diversion Dam	Walla Walla	14	Significant	Not Available	1942
84	Telegraph Road Stormwater Detention Dam	Whatcom	14	High	Fair	1988
85	Happy Valley Stormwater Detention Basin	Whatcom	14	High	Satisfactory	1981
86	Mill Pond Stormwater Detention Dam	King	13	High	Satisfactory	1994
87	Madsen Creek West Basin Dam	King	13	High	Satisfactory	2008
88	Lakemont Stormwater Pond	King	13	High	Satisfactory	1992
89	Lakeland South Pond No 1	Pierce	13	High	Fair	2003
90	Leach Creek Stormwater Detention Dam	Pierce	13	High	Fair	1960
91	Newman Lake Flood Control Dam	Spokane	13	High	Poor	1976
92	Horton Road Detention Dam	Whatcom	13	High	Fair	1994
93	Mcdonald Dam	Grant	12	Low		1924
94	Queens Bog Dam	King	12	Low		1987
95	Muth Stormwater Pond	King	12	High	Satisfactory	2007
96	Panther Lake Detention Dam	King	12	High	Fair	1994
97	Bellevue Detention Pond 133	King	12	Low		1983
98	Bellevue Detention Pond 197	King	12	Low		1983
99	South 336th Street Stormwater Dam No 1	King	12	High	Fair	1996
100	Conner Jarvis East Pond	King	11	Significant	Satisfactory	2018

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