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. 2022 Jan 28;8(4):eabl5486. doi: 10.1126/sciadv.abl5486

Table 2. Selection of representative dams removed in the United States at least, in part, for the benefit of diadromous fishes (along Atlantic Coast chiefly for Atlantic salmon and alosines; along Pacific Coast chiefly for salmon and trout).

The dams are arranged approximately from north to south by region and were selected to include a range of sizes. Sources: Duda et al. (189), Brewitt (190) and multiple published sources. In some cases, the reported years of construction and removal may differ among sources, reflecting project’s whose initiation and completion spanned more than 1 year.

Dam name River Region Height (m) Year Built Removed
Atlantic Coast
Veazie Penobscot River Maine 9.1 1913 2013
Edwards Kennebec River Maine 7.3 1837 1999
Smelt Hill Presumpscot Maine 4.3 1898 2002
Elm Street Jones River Cape Cod (Massachusetts) 2.7 1920 2019
Weston Mill Dam Millstone River New Jersey 1.5 1844 2017
Bloede Patapsco River Maryland 10.4 1906 2018
Embrey Rappahannock River Virginia 6.7 1855 2005
Milburnie Neuse River North Carolina 4.6 1813 2017
Conagree Congaree South Carolina 4.6 1950’s 2019
White Oconee Georgia 4.4 1912 2018
Pacific Coast
Elwha Elwha River Olympic Peninsula (Washington) 32 1913 2012
Glines Canyon Elwha River Olympic Peninsula (Washington) 64 1927 2014
Goldsborough Creek Goldsborough Creek Puget Sound (Washington) 10.7 1921 2001
Condit White Salmon River Columbia River (Washington) 38.1 1913 2012
Little Sandy Little Sandy River Columbia River (Oregon) 4.6 1913 2008
Gold Ray Rogue River Oregon coast 11.6 1941* 2010
Gold Hill diversion Rogue River Oregon coast 2.4 1931 2008
Sweasy Mad River California coast 16.8 1938 1970
York Creek diversion York Creek California coast 1.5 1900 2004
San Clemente Carmel River California coast 32.2 1921 2015

*For example, Gold Ray Dam was initially built as a wooden structure in 1904 and a concrete structure replaced it in 1941.