Water Supply Dams

7,228 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Westons Arch Dam Middlesex	Significant Hazard	17 ft	1919	Concrete	New Jersey
West Parish Filter #1 Dam Hampden	Significant Hazard	28 ft	1925	Earth	Massachusetts
West Parish Filter #2 Dam Hampden	Significant Hazard	30 ft	1910	Earth	Massachusetts
West Parish Filter #3 Dam Hampden	High Hazard	39 ft	1910	Earth	Massachusetts
West Point Regulating Calaveras	High Hazard	36 ft	1965	Earth	California
West Pre-Sedimentation Basin Wagoner	High Hazard	22 ft	1966	Earth	Oklahoma
West Reservoir Dam Summit	High Hazard	22 ft	1840	Earth	Ohio
West Salem New Reservoir Dam Edwards	Significant Hazard	14 ft	1968	Earth	Illinois
West Two River St. Louis	Significant Hazard	40 ft	1966	Earth	Minnesota
Westvaco Corporation Dam Hampton	Low Hazard	9 ft	1997	—	South Carolina
West Valley Modoc	High Hazard	65 ft	1936	Earth	California
Westville Lake Dam Columbiana	Significant Hazard	29 ft	1912	Earth	Ohio
West Warren Mill Pond Dam Worcester	Low Hazard	19 ft	1900	Other	Massachusetts
West Whately Reservoir Dam Franklin	High Hazard	23 ft	1903	Earth	Massachusetts
Wet Meadows Alpine	Low Hazard	28 ft	—	Earth	California
Wetumka Hughes	Low Hazard	37 ft	1939	Earth	Oklahoma
Wewoka Seminole	High Hazard	38 ft	1925	Earth	Oklahoma
Weymouth Great Pond Dam Norfolk	Significant Hazard	9 ft	1884	Earth	Massachusetts
Weymouth Memorial Reservoir Los Angeles	High Hazard	18 ft	1966	Other	California
Weymouth Middle Lake Dam Moore	Significant Hazard	35 ft	1953	Earth	Texas
Weymouth Valley Lake No. 1 Dam Medina	Significant Hazard	12 ft	1968	Earth	Ohio
Whale Pond Dam Potter	Low Hazard	58 ft	1964	Earth	Texas
Whale Rock San Luis Obispo	High Hazard	193 ft	1960	Earth	California
Whatcom Lake Dam Whatcom	High Hazard	—	1937	Gravity	Washington
Wheeler Branch Dam Somervell	High Hazard	91 ft	2008	Earth	Texas
Wheelock Lake Dam Navarro	Low Hazard	24 ft	1960	Earth	Texas
Whetstone No 2 Storage Elk	High Hazard	36 ft	1962	Earth	Pennsylvania
Whigville Reservoir Dam Hartford	High Hazard	58 ft	1909	Earth	Connecticut
Whiskey Chute Dam Chicot	Low Hazard	—	1970	Earth	Arkansas
Whiskey Creek Dam Young	High Hazard	28 ft	1967	Earth	Texas
Whiskeytown Shasta	High Hazard	263 ft	1963	Earth	California
Whispering Oaks Mariposa	Low Hazard	31 ft	1968	Gravity	California
Whitaker Dam Leon	Low Hazard	21 ft	1965	Earth	Texas
White Modoc	Low Hazard	16 ft	1918	Earth	California
Whited Reservoir (Baker) Baker	Significant Hazard	45 ft	1921	Earth	Oregon
Whiteford Lake Park	Low Hazard	22 ft	1955	Earth	Colorado
White Hall Reservoir Dam Greene	Significant Hazard	38 ft	1952	Earth	Illinois
Whitehead Brothers Dam Kershaw	Low Hazard	20 ft	1960	—	South Carolina
Whitehouse Dam Smith	High Hazard	50 ft	1949	Earth	Texas
White Lake Dam Bexar	Low Hazard	33 ft	1967	Earth	Texas
White Lake Dam Harrison	Low Hazard	18 ft	1970	Earth	Texas
White Lake Dam Marshall	Significant Hazard	28 ft	1933	Earth	South Dakota
Whiteley Peak Grand	Significant Hazard	60 ft	1941	Earth	Colorado
White Oak Dam #1 Madison	Significant Hazard	64 ft	—	Earth	Virginia
White Oak Lake Dam Guilford	Low Hazard	—	1900	Earth	North Carolina
White Pines Calaveras	Low Hazard	35 ft	1970	Earth	California
White Pine Trail Oklahoma	Low Hazard	15 ft	2005	—	Oklahoma
White Plains Reservoir #1 Dam Westchester	High Hazard	25 ft	1900	Concrete	New York
White Plains Reservoir #2 Dam Westchester	High Hazard	35 ft	1907	Earth	New York
White Reservoir Dam Hampshire	Significant Hazard	51 ft	1912	Masonry	Massachusetts