Dam

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Allegheny River Lock and Dam No. 2 (Allegheny County, Pennsylvania)
Allegheny River Lock and Dam No. 3 (Allegheny County, Pennsylvania)
Allegheny River Lock and Dam No. 4 (Allegheny County, Pennsylvania)
Allegheny River Lock and Dam No. 5 (Armstrong County, Pennsylvania)
Allegheny River Lock and Dam No. 6 (Armstrong County, Pennsylvania)
Allegheny River Lock and Dam No. 7 (Armstrong County, Pennsylvania)
Allegheny River Lock and Dam No. 8 (Armstrong County, Pennsylvania)
Allegheny River Lock and Dam No. 9 (Armstrong County, Pennsylvania)
Apple Creek Dam (Cape Girardeau County, Missouri)
Arrowrock Dam (Boise County, Idaho)
Ash Fork Steel Dam (Coconino County, Arizona)
Ashland Dam and Spillway (Middlesex County, Massachusetts)
Austin Dam (Potter County, Pennsylvania)
Former dam destroyed by flooding in 1911
Bailey's Dam Site (Rapides Parish, Louisiana)
Barber Dam and Lumber Mill (Ada County, Idaho)
Barker Dam (Riverside County, California)
Beaver Lake Dam (Hoonah-Angoon Census Area, Alaska)
Belle Fourche Dam (Butte County, South Dakota)
Blue Ridge Dam (Fannin County, Georgia)
Boca Dam (Nevada County, California)
Bonneville Dam (Multnomah County, Oregon)
Dam and Lock
Bonneville Dam (Skamania County, Washington)
Concrete gravity dam completed in 1938
Boundary Hydroelectric Project (Pend Oreille County, Washington)
Brown's Lock and Mill Dam #1 (Warren County, Kentucky)
Navigational lock and low level dam on Big Barren River
Buffalo Bill Dam (Park County, Wyoming)
Buford Dam (Forsyth County, Georgia)
Army Corps of Engineer dam impounding the Chattahootchee River
Cascades Dam (Macomb County, Michigan)
Remains of a breached dam
Chickamauga Hydroelectric Project (Hamilton County, Tennessee)
Converse Mill Dam (Spartanburg County, South Carolina)
Textile Mill Dam on the Pacolet River
Coolidge Dam (Unspecified county, Arizona)
Crane Lake Dam (Iron County, Missouri)
Dam and spillway on Crane Pond Creek
Crystal Falls Dam and Power Plant (Iron County, Michigan)
Davis Island Lock and Dam Site (Allegheny County, Pennsylvania)
Dayton Dam (LaSalle County, Illinois)
Dam with powerplant on Fox River @ Dayton, IL
Derby Diversion Dam (Storey County, Nevada)
Dillon Dam (Muskingum County, Ohio)
Dillon Dam was built for flood control by the U.S. Army Corp of Engineers in the late 50s and finally completed in 1960.
Diversion Dam and Deer Flat Embankments (Unspecified county, Idaho)
Douglas Dam & Lake (Sevier County, Tennessee)
Ellsworth Power House and Dam (Hancock County, Maine)
Enloe Dam and Powerplant (Okanogan County, Washington)
Fish Creek Dam (Blaine County, Idaho)
Fontana Hydroelectric Project (Graham County, North Carolina)
Fort Peck Dam (Valley County, Montana)
Framingham Reservoir No. 1 Dam and Gatehouse (Middlesex County, Massachusetts)
Framingham Reservoir No. 2 Dam and Gatehouse (Middlesex County, Massachusetts)
Framingham Reservoir No. 3 Dam and Gatehouse (Middlesex County, Massachusetts)
Frankfort Dam (Waldo County, Maine)
Fullerton Dam (Jackson County, Oklahoma)
George B. Stevenson Dam (Cameron County, Pennsylvania)
Georgetown Reservoir (Vermilion County, Illinois)
Grand Valley Diversion Dam (Mesa County, Colorado)
Great Stone Dam (Essex County, Massachusetts)
Green River Crib Dam (Windham County, Vermont)
Green River Lock and Dam #4 (Butler County, Kentucky)
Ruined Navigational Lock and Facilities of the Green River Slackwater System
Greenwood Lake Dam (Huntingdon County, Pennsylvania)
Habersham Mills Dam (Habersham County, Georgia)
Halfway Lake Dam (Union County, Pennsylvania)
Hell's Canyon Dam (Wallowa County, Oregon)
Concrete gravity dam completed in 1967
Highlands Country Club Lake & Dam (Macon County, North Carolina)
Hoover Dam (Clark County, Nevada)
Concrete arch gravity dam built 1931 - 1935
Hopkinton Dam and Spillway (Middlesex County, Massachusetts)
Ice Harbor Lock & Dam (Walla Walla County, Washington)
Concrete gravity, run-of-the-river dam constructed between 1955 and 1962
Interstate Power Company (Crawford County, Wisconsin)
John Day Dam (Klickitat County, Washington)
Concrete gravity dam across the Columbia River completed in 1971
Kankakee River Dam (Kankakee County, Illinois)
Kankakee River dam with powerhouse
Kankakee River Dam @ Wilmington, IL (Will County, Illinois)
Dam across Kankakee River @ Wilmington, IL
Keokuk Lock and Dam (Lee County, Iowa)
Kruger Dam (Lincoln County, South Dakota)
Lake Alger Dam (Polk County, North Carolina)
Lake Bowen Dam (Spartanburg County, South Carolina)
Dam impounding the South Branch Pacolet River to form Lake William C. Bowen
Lake Burton Dam (Habersham County, Georgia)
Lake Cochituate Dam (Middlesex County, Massachusetts)
Lake Hamilton Dam (Mahoning County, Ohio)
Lake Overholser Dam (Oklahoma County, Oklahoma)
Dam with walkway across the North Canadian River in Oklahoma City
Lake Tahoe Dam (Placer County, California)
Lake Winfield Scott Dam (Union County, Georgia)
Lime Springs Mill Complex (Howard County, Iowa)
Lock & Dam No. 2 (Dakota County, Minnesota)
The only dam in the St. Paul District with a hydroelectric facility
Lock & Dam No. 9 (Crawford County, Wisconsin)
One of the 29 lock & dam sets that is part of the Upper Mississippi River 9-Foot Navigation Project
Lock No. 30 and Feeder Dam (Summit County, Ohio)
Lockville Dam, Canal and Powerhouse (Chatham County, North Carolina)
Lower Monumental Dam (Walla Walla County, Washington)
Concrete dam and lock on the Snake River completed in 1969
Mathis Dam and Lake Rabun (Rabun County, Georgia)
Mayo's Bar Lock and Dam (Floyd County, Georgia)
McKay Creek Dam (Umatilla County, Oregon)
Earthfill, concrete reinforced dam built 1923 - '27
McNary Dam (Umatilla County, Oregon)
Concrete, gravity-type spillway dam built 1947 - 1954
Medina Dam (Medina County, Texas)
Meeker Island Lock and Dam (Hennepin County, Minnesota)
Menasha Dam (Winnebago County, Wisconsin)
Once the source of power for paper making, controls the Fox and is popular for fishing
Minidoka Dam and Power Plant (Minidoka County, Idaho)
Mississippi River Lock & Dam 5A (Buffalo County, Wisconsin)
One of the 29 lock & dam sets that is part of the Upper Mississippi River 9-Foot Navigation Project
Mississippi River Lock & Dam Number 4 (Buffalo County, Wisconsin)
One of the 29 lock & dam sets that is part of the Upper Mississippi River 9-Foot Navigation Project
Mississippi River Lock & Dam Number 5 (Winona County, Minnesota)
One of the 29 lock & dam sets that is part of the Upper Mississippi River 9-Foot Navigation Project
Mississippi River Lock and Dam No. 6 (Trempealeau County, Wisconsin)
Part of the Upper Mississippi 9 Foot Navigation Project
Mitchell Powerhouse and Dam (Mitchell County, Iowa)
Montserrat Recreation Demonstration Area Dam and Spillway (Johnson County, Missouri)
Mountain Dell Dam (Salt Lake County, Utah)
Mystic Dam (Middlesex County, Massachusetts)
Natural Dam (Mariposa County, California)
Display about the formation of Mirror Lake
Nitrolee Dam (Chester County, South Carolina)
Built in early 1900s by Duke Power
Norris Hydroelectric Project (Anderson County, Tennessee)
Nottely Lake & Dam (Union County, Georgia)
Oak Creek Dam (Garfield County, Utah)
Ocoee No. 3 Hydroelectric Project (Polk County, Tennessee)
Ohio River Lock and Dam No. 31 Grounds and Buildings (Lewis County, Kentucky)
Okanogan Project: Conconully Resevoir Dam (Okanogan County, Washington)
Old Croton Dam, Site of (Westchester County, New York)
Old Mission Dam (San Diego County, California)
Osage Mills Dam (Benton County, Arkansas)
Ouachita River Lock and Dam No. 8 (Calhoun County, Arkansas)
Pathfinder Dam (Natrona County, Wyoming)
Pennsylvania Canal Guard Lock and Feeder Dam, Raystown Branch (Huntingdon County, Pennsylvania)
R.D. Bailey Dam (Wyoming County, West Virginia)
Army Corps of Engineer dam impounding the Guyandotte River
Rapidan Dam Canal of the Rappahannock Navigation (Spotsylvania County, Virginia)
Redridge Steel and Log Dams (Houghton County, Michigan)
Roaring River State Park Dam/Spillway (Barry County, Missouri)
Rock Island Dam (Chelan County, Washington)
Hydro-electric concrete dam built 1930 - '33
Round Lake Logging Dam (Price County, Wisconsin)
Saffold Dam (Guadalupe County, Texas)
Saluda Dam (Greenville County, South Carolina)
Dam impounding the Saluda River in Greenville and Pickens Counties, SC
Senecaville Lake Dam (Guernsey County, Ohio)
Sequoyah Lake Dam Falls (Macon County, North Carolina)
Shasta Dam (Shasta County, California)
Curved concrete gravity dam built 1937 - '45
Silver Lake Dam (Sullivan County, New York)
Silver Mine Dam (Madison County, Missouri)
Breached stone dam over the St. Francis River
Sky Lake Dam (White County, Georgia)
Sloat's Dam and Mill Pond (Rockland County, New York)
Theresa Dam Site (Washington County, Wisconsin)
Parkland on former site of Lake Theresa
Tygart River Reservoir Dam (Taylor County, West Virginia)
Tyler Hydraulic-Fill Dam (Smith County, Texas)
Unicoi Lake Dam (White County, Georgia)
Varney's Falls Dam (Botetourt County, Virginia)
Walnut Canyon Dam (Coconino County, Arizona)
Wanapum Dam (Grant County, Washington)
Hydro-electric concrete dam built 1959 - '63
Whitney Mill Dam (Spartanburg County, South Carolina)
Old Textile Mill Dam
Wilson Dam (Colbert County, Alabama)
Wilson Dam (Lauderdale County, Alabama)
A dam spanning the Tennessee River between Lauderdale County and Colbert County, Alabama.
Winchester Dam (Douglas County, Oregon)
Winnibigoshish Lake Dam (Unspecified county, Minnesota)
Yamhill River Lock and Dam (Yamhill County, Oregon)