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Browse Dams

111 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 111 dams from the NID database. Each record includes dam name, location, physical dimensions, hazard potential classification, condition assessment, purpose, owner information, and emergency action plan status. Use the filters below to search by state, hazard level, condition, or keyword.

Name State County Height (ft) Hazard Condition Year Purpose
Wrangell Lower Alaska City and Borough of Wrangell 28 High Poor 1968 Water Supply
Lower Dewey Alaska Municipality of Skagway 28 Low Satisfactory 1905 Hydroelectric
Petersburg Upper Dam Alaska Petersburg Borough 27 Significant Fair 1950 Water Supply
Ward Cove Cannery Dam Alaska Ketchikan Gateway Borough 27 Low Not Rated 1932 Water Supply
Lot D9 Dam Alaska — 26 Significant Not Rated — Recreation
Douglas Island Dam Alaska City and Borough of Juneau 26 High Fair 1937 Other
Seldovia Upper Dam Alaska Kenai Peninsula Borough 25 Low Poor 1953 Water Supply
Icy Creek Reservoir Dam Alaska Aleutians West Census Area 24 Significant Satisfactory 1993 Water Supply
Pillar Creek Dam No.1.B Alaska Kodiak Island Borough 24 Significant Fair 1968 Water Supply
Pillar Creek Dam No. 2.C Alaska Kodiak Island Borough 24 Significant Fair 1968 Water Supply
Meals Lake Dam Alaska Chugach Census Area 23 High Fair 1972 Water Supply
Fawn Lake Dam South Alaska Ketchikan Gateway Borough 22 Significant Satisfactory 1957 Hydroelectric
Westchester Lagoon Dam Alaska Municipality of Anchorage 22 Significant Fair 1973 Recreation
Akutan Hydro Dam Alaska Aleutians East Borough 21 Significant Fair 1993 Hydroelectric
Sherwood Estates Dam Alaska Matanuska-Susitna Borough 20 Low Not Rated 1975 Recreation
Annex Creek Alaska City and Borough of Juneau 20 Low Satisfactory 1968 Hydroelectric
Lake Demarie Dam Alaska Aleutians West Census Area 19 Significant Not Rated 1951 Water Supply
Humboldt Creek Reservoir Dam Alaska Aleutians East Borough 19 Significant Not Rated — Water Supply
Alitak Cannery Dam #2 Alaska Kodiak Island Borough 18 Low Poor 1964 Water Supply
Cannery Creek Dam Alaska Chugach Census Area 17 Significant Fair 1979 Other
Chignik Alaska Lake and Peninsula Borough 17 Low Satisfactory 1947 Hydroelectric
Pillar Creek Dam No. 2.A Alaska Kodiak Island Borough 17 Significant Fair 1968 Water Supply
Pillar Creek Dam No. 2.B Alaska Kodiak Island Borough 17 Significant Fair 1968 Water Supply
Isatkuag Lagoon Dam Alaska North Slope Borough 16 Significant Fair 1977 Water Supply
Kotzebue Water Supply Dam Alaska Northwest Arctic Borough 16 Significant Unsatisfactory 1970 Water Supply
Gregory Lake Alaska Municipality of Anchorage 16 Low Not Available — Recreation
Eyak Lake Alaska Chugach Census Area 15 Low Not Rated 1972 Fish and Wildlife Pond
Bonnie Rose Lake Dam Alaska Aleutians West Census Area 15 Significant Not Rated 1943 Water Supply
Fawn Lake Dam North Alaska Ketchikan Gateway Borough 15 Significant Satisfactory 1959 Hydroelectric
North Lake East Dam Alaska Aleutians West Census Area 14 Significant Not Rated 1970 Water Supply
Caswell Lakes Road Embankment Alaska Matanuska-Susitna Borough 14 Significant Poor — Recreation
Mahoona Dam Alaska Kodiak Island Borough 13 Low Unsatisfactory 1986 Hydroelectric
Itasigrook Alaska North Slope Borough 13 Significant Satisfactory 1964 Water Supply
Lower Fire Lake Dam Alaska Municipality of Anchorage 13 High Fair 1960 Fish and Wildlife Pond
Kwethluk Wastewater Lagoon Dam Alaska Bethel Census Area 13 Significant Not Rated — Other
Beluga Lake Dam Alaska Kenai Peninsula Borough 13 Significant Not Rated — Fish and Wildlife Pond
Lake "O" The Hills Alaska Municipality of Anchorage 13 High Fair 1975 Other
Alitak Cannery Dam #4 Alaska Kodiak Island Borough 12 Low Not Rated 1964 Water Supply
North Fork Lake Dam Alaska Prince of Wales-Hyder Census Area 12 Significant Not Rated — Water Supply
Stover Dam Alaska Kodiak Island Borough 11 Low Not Rated 1962 Fish and Wildlife Pond
Campbell Lake Dam Alaska Municipality of Anchorage 11 Low Fair 1957 Debris Control
Bluff Lake Diversion Alaska Ketchikan Gateway Borough 10 Low Not Rated 1984 Hydroelectric
Chiniak Satellite Tracking Sta. Dam Alaska Kodiak Island Borough 10 Low Not Rated 1954 Water Supply
North Lake West Dam Alaska Aleutians West Census Area 10 Significant Not Rated 1945 Water Supply
New England Fish CO Dam Alaska Aleutians East Borough 10 Low Not Rated 1940 Water Supply
Adak Log Dam Alaska Aleutians West Census Area 9 Low Poor 1970 Water Supply
Lake Leone Dam Alaska Aleutians West Census Area 9 Significant Not Rated 1945 Water Supply
Big Kitoi Alaska Kodiak Island Borough 9 Low Not Rated 1962 Water Supply
Shotter Creek Upper Dam Alaska Hoonah-Angoon Census Area 9 Significant Fair 1968 Hydroelectric
Alitak Cannery Dam #1 Alaska Kodiak Island Borough 9 High Poor 1917 Water Supply

Frequently Asked Questions

Hazard potential is based on the consequences of dam failure, not the condition of the dam. High hazard means loss of human life is probable. Significant means economic and environmental losses are expected but no probable loss of life. Low means minimal losses are expected. The classification considers downstream population, infrastructure, and environmental resources.

Condition ratings reflect the physical state of the dam based on periodic inspections. Satisfactory means no deficiencies found. Fair means minor issues exist but no immediate action needed. Poor means safety deficiencies require remedial action. Unsatisfactory means the dam is unsafe and immediate corrective action is required.

Yes. Use the search field above to find dams by name. You can also combine the search with state, hazard, and condition filters to narrow your results. Each dam record links to a detail page with complete information.