Water Supply Dams

7,228 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Wood Ranch Ventura	High Hazard	146 ft	1965	Earth	California
Woods Dam Clinton	Low Hazard	25 ft	1955	Earth	Missouri
Woodsfield Reservoir Dam No. 3 Monroe	High Hazard	56 ft	1992	Earth	Ohio
Woods Lake Weld	Significant Hazard	26 ft	1892	Earth	Colorado
Woods Pond Dam Berkshire	Significant Hazard	18 ft	1991	Concrete	Massachusetts
Woodstock Dam Shenandoah	High Hazard	44 ft	—	Gravity	Virginia
Woodsville Grafton	Significant Hazard	12 ft	1827	Concrete	New Hampshire
Woodward Stanislaus	High Hazard	58 ft	1918	Earth	California
Woodward Dam Orange	High Hazard	30 ft	1901	Earth	New York
Woodward Pond Dam Cheshire	High Hazard	22 ft	1836	Earth	New Hampshire
Woodworth Lake Dam Daviess	High Hazard	30 ft	1954	Earth	Missouri
Woonsocket Reservoir # 1 Providence	High Hazard	41 ft	1883	Earth	Rhode Island
Woonsocket Reservoir # 3 Providence	High Hazard	27 ft	1895	Gravity	Rhode Island
Word Farm Dam Greene	Unknown	20 ft	—	Earth	Virginia
World Challenge Lake No 1 Dam Smith	Low Hazard	34 ft	1974	Earth	Texas
World Challenge Lake No 2 Dam Smith	Low Hazard	36 ft	1974	Earth	Texas
World Challenge Lake No 3 Dam Smith	Low Hazard	28 ft	1975	Earth	Texas
Woronoco - South Dam Hampden	Low Hazard	25 ft	1938	Concrete	Massachusetts
Wrangell Lower City and Borough of Wrangell	High Hazard	28 ft	1968	Rockfill	Alaska
Wrangell Upper City and Borough of Wrangell	High Hazard	28 ft	1967	Rockfill	Alaska
Wright Dam No 1 Webb	Low Hazard	18 ft	1928	Earth	Texas
Wright Dam No 4 Webb	Low Hazard	14 ft	1911	Earth	Texas
Wright Family Pond Sabine	Low Hazard	30 ft	2012	Earth	Louisiana
Wright Patman Dam Bowie	High Hazard	106 ft	1954	Earth	Texas
Wright Reservoir Windsor	Significant Hazard	36 ft	1930	Earth	Vermont
Wrigley Reservoir Los Angeles	Significant Hazard	42 ft	1930	Earth	California
Wt Schneider Dam Tom Green	Low Hazard	20 ft	1970	Earth	Texas
Wuest San Diego	Low Hazard	50 ft	1928	Earth	California
Wurtzburger Lake Dam Lewis	Low Hazard	20 ft	1965	Earth	Missouri
Wyaconda City Dam Clark	High Hazard	32 ft	1977	Earth	Missouri
Wylie York	High Hazard	119 ft	1925	Gravity	South Carolina
Wyman Pond Compensating Reservoir Dam Worcester	High Hazard	25 ft	1892	Concrete	Massachusetts
Wynn and Harrell No 2 Dam Lowndes	Significant Hazard	—	—	Earth	Alabama
Wynoochee Grays Harbor	High Hazard	175 ft	1972	Gravity	Washington
Xit No.8 Beaver	Low Hazard	20 ft	1962	Earth	Oklahoma
Xqz Lake Dam Tom Green	Low Hazard	20 ft	1957	Earth	Texas
Yadkin Narrows Stanly	High Hazard	201 ft	1917	Gravity	North Carolina
Yadkin River Water Supply Project Dam Union	High Hazard	—	—	Other	North Carolina
Yadkinville Wtp Reservoir Dam Yadkin	High Hazard	—	2009	Earth	North Carolina
Yahola Tulsa	High Hazard	35 ft	1948	Earth	Oklahoma
Yahuecas Dam Adjuntas	High Hazard	90 ft	1956	Gravity	Puerto Rico
Yamcolo Garfield	High Hazard	97 ft	1980	Earth	Colorado
Yanceyville Water Supply Dam Caswell	High Hazard	—	1952	Earth	North Carolina
Yates Center Reservoir Dam (Multi-Purpose Dam) Woodson	Significant Hazard	47 ft	1990	Earth	Kansas
Yates New Pond Washington	Low Hazard	10 ft	1966	Earth	Louisiana
Yauney Reservoir Dam Fulton	Low Hazard	20 ft	1964	Earth	New York
Yellow Creek Reservoir Dam Dawson	High Hazard	114 ft	1999	Earth	Georgia
Yellow Creek Upground Reservoir Putnam	Significant Hazard	30 ft	2006	Earth	Ohio
Yellow Jacket Creek Watershed Str. # 15 Troup	High Hazard	48 ft	1973	Earth	Georgia
Yoncalla Reservoir Douglas	Low Hazard	16 ft	1983	Earth	Oregon