Survey No. Name (as assigned by HAER) Status Type [2] Built Documented Carries Crosses Location Borough or Census Area Coordinates AK-4 Kuskalana Bridge Extant Pratt truss 1910 1982 AK-10 ( McCarthy Road ) Kuskulana River Chitina Copper River Census Area 61°29′20″N 144°00′56″W / 61.48889°N 144.01556°W / 61.48889; -144.01556 (Kuskalana Bridge ) AK-10 Copper River and Northwest Railroad, Million Dollar Bridge Extant Pennsylvania truss 1909 1984 AK-10 ( Copper River Highway ) Copper River Cordova Chugach Census Area 60°40′23″N 144°44′45″W / 60.67306°N 144.74583°W / 60.67306; -144.74583 (Copper River and Northwest Railroad, Million Dollar Bridge ) AK-14 Nizina Bridge Abandoned Parker truss 1925 1986 Nizina Road Nizina River McCarthy Copper River Census Area 61°21′50″N 142°46′56″W / 61.36389°N 142.78222°W / 61.36389; -142.78222 (Nizina Bridge ) AK-15 Copper River and Northwestern Railroad, Gilahina Bridge Abandoned Trestle 1911 1985 Copper River and Northwestern Railway Gilahina River Chitina Copper River Census Area 61°26′19″N 143°43′04″W / 61.43861°N 143.71778°W / 61.43861; -143.71778 (Copper River and Northwestern Railroad, Gilahina Bridge ) AK-27 AK-33 O'Connell Bridge Japonski Bridge Extant Cable-stayed 1972 1991 2001 Sitka Channel Sitka Sitka 57°02′52″N 135°20′26″W / 57.04778°N 135.34056°W / 57.04778; -135.34056 (O'Connell Bridge ) AK-29 Old Bridge Timber stringer 1995 Contact Creek branch Anaktuvuk Pass North Slope Borough AK-37 Taiya River Bridge Extant Parker truss 2000 Dyea Road Taiya River Skagway Skagway 59°30′44″N 135°20′50″W / 59.51222°N 135.34722°W / 59.51222; -135.34722 (Taiya River Bridge ) AK-39 White Pass and Yukon Railroad, Cantilever Bridge Extant Cantilever 2000 White Pass and Yukon Route Skagway Skagway 59°33′10″N 135°07′16″W / 59.55278°N 135.12111°W / 59.55278; -135.12111 (White Pass and Yukon Railroad, Cantilever Bridge ) AK-66 Alaska Railroad, Bridge No. 354.4 Replaced Pratt truss 1922 2004 Alaska Railroad Nenana River tributary Healy Denali Borough 63°48′34″N 148°56′59″W / 63.80944°N 148.94972°W / 63.80944; -148.94972 (Alaska Railroad, Bridge No. 354.4 ) AK-67 Alaska Railroad, Trestle MP 187.6 Replaced Trestle 1917 2002 Alaska Railroad Iron Creek Willow Matanuska-Susitna Borough 61°45′46″N 150°02′53″W / 61.76278°N 150.04806°W / 61.76278; -150.04806 (Alaska Railroad, Trestle MP 187.6 (Iron Creek) ) AK-68 Alaska Railroad, Trestle MP 200.9 Replaced Trestle 1917 2002 Alaska Railroad Caswell Creek Willow Matanuska-Susitna Borough 61°57′38″N 150°02′41″W / 61.96056°N 150.04472°W / 61.96056; -150.04472 (Alaska Railroad, Trestle MP 200.9 (Caswell Creek) ) AK-69 Alaska Railroad, Trestle MP 233.4 Replaced Trestle 1919 2002 Alaska Railroad Susitna River tributary Talkeetna Matanuska-Susitna Borough 62°25′00″N 150°07′12″W / 62.41667°N 150.12000°W / 62.41667; -150.12000 (Alaska Railroad, Trestle MP 233.4 ) AK-70 Alaska Railroad, Trestle MP 233.6 Replaced Trestle 1919 2002 Alaska Railroad Susitna River tributary Talkeetna Matanuska-Susitna Borough 62°25′10″N 150°07′19″W / 62.41944°N 150.12194°W / 62.41944; -150.12194 (Alaska Railroad, Trestle MP 233.6 ) AK-71 Alaska Railroad, Trestle MP 267.7 Replaced Trestle 1920 2002 Alaska Railroad Valentine Creek Talkeetna Matanuska-Susitna Borough 62°48′32″N 149°39′18″W / 62.80889°N 149.65500°W / 62.80889; -149.65500 (Alaska Railroad, Trestle MP 267.7 (Valentine Creek) ) AK-72 Alaska Railroad, Bridge at MP 305.7 Replaced Steel rolled multi-beam 1951 2003 Alaska Railroad Chulitna River middle fork Broad Pass Matanuska-Susitna Borough 63°15′08″N 149°14′51″W / 63.25222°N 149.24750°W / 63.25222; -149.24750 (Alaska Railroad, Bridge at MP 305.7 (Middle Fork of Chulitna River) )