Duluth, Minnesota
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Arrowhead Bridge (St. Louis County, Minnesota)
Lost deck truss bascule bridge over St Louis Bay on US Highway 2Demolished
BNSF - Idaho Street Bridge (St. Louis County, Minnesota)
Built 1930Steel stringer bridge over Idaho Street on DM&IR RailwayOpen to traffic
BNSF - Michigan Street Overpass (St. Louis County, Minnesota)
Built 1937Abandoned steel stringer bridge over Michigan Street on Abandoned BNSF RailwayDerelict/abandoned
Boundary Avenue Bridge (St. Louis County, Minnesota)
Built 1920 by A.T. Nelson; replaced in 1995Lost arch bridge over Kingsbury Creek on Boundary AvenueReplaced by new bridge
Bridge L8515 (St. Louis County, Minnesota)
Built 1922Closed-spandrel arch bridge over Tischer Creek on West Lewis StreetOpen to traffic
Chester Creek Bridge (St. Louis County, Minnesota)
Built 1919; rehabilitated 2002Concrete arch bridge over Chester Creek on 9th Street in DuluthOpen to traffic
Chester Creek Bridge (St. Louis County, Minnesota)
Built 1910Stone arch bridge over Chester Creek on E. Superior Street in DuluthOpen to traffic
Chester River Bridge (St. Louis County, Minnesota)
Built 1933Stone arch bridge over Chester River on CR 9 in DuluthOpen to traffic
Chesters Creek Bridge (St. Louis County, Minnesota)
Built 1915Stone arch bridge over Chesters Creek on London Road in DuluthOpen to traffic
Chesters Creek Bridge (St. Louis County, Minnesota)
Built 1915Stone arch bridge over Chesters Creek on 3rd Street in DuluthOpen to traffic
Chesters Creek Bridge (St. Louis County, Minnesota)
Built 1915Stone arch bridge over Chesters Creek on 2nd Street in DuluthOpen to traffic
CN - 108th Avenue Overpass (St. Louis County, Minnesota)
Built 1913, Bypassed 2015Deck plate girder bridge over 108th Avenue on Canadian National RailwayIntact but closed to all traffic
CN - Grand Avenue Viaduct (St. Louis County, Minnesota)
Built 1904Deck plate girder bridge over Grand Avenue, Superior Street and Carlton Avenue on Canadian National RailwayOpen to traffic
CN - Highland Street Bridge (St. Louis County, Minnesota)
Built 1921Pony/through plate girder bridge over Highland Street on Canadian National RailwayOpen to traffic
CN - I-35 Bridge (NB) (St. Louis County, Minnesota)
Built 1956Pony/through plate girder bridge over I-35 Northbound on Canadian National RailwayOpen to traffic
CN - I-35 Bridge (SB) (St. Louis County, Minnesota)
Built 1965Pony/through plate girder bridge over I-35 Southbound on Canadian National RailwayOpen to traffic
CN - Keene Creek Bridge (St. Louis County, Minnesota)
Deck plate girder bridge over Keene Creek on Canadian National RailwayOpen to traffic
CN - Kingsbury Creek Bridge (St. Louis County, Minnesota)
Deck plate girder bridge over Kingsbury Creek on Canadian National RailwayOpen to traffic
CN - MN-23 Overpass (St. Louis County, Minnesota)
Built 1940, New Bridges Built 2014Pony/through plate girder bridge over MN-23 on DM&IR RailwayReplaced by a new bridge
CN - Ore Dock #6 Viaduct (St. Louis County, Minnesota)
Built 1918, Portion over I-35 Reconstructed 1966Deck plate girder bridge over I-35 and City Streets on Canadian National RailwayOpen to traffic
CN - U.S. Steel Creek Tributary Bridge (St. Louis County, Minnesota)
Deck plate girder bridge over U.S. Steel Creek Tributary on Bypassed Canadian National RailwayIntact but closed to all traffic
CN - US-2 Bridge (EB) (St. Louis County, Minnesota)
Built 1965Pony/through plate girder bridge over US Highway 2 Eastbound on Canadian National RailwayOpen to traffic
CP - 37th Avenue Overpass (St. Louis County, Minnesota)
Built 1907Through Girder Bridge over 37th Avenue on abandoned Canadian Pacific RailwayBridge has been stored and put up for sale.
DM&IR Ore Dock #5 Viaduct (St. Louis County, Minnesota)
Built 1913; Section over Interstate 35 reconfigured 1966; Abandoned 1985Abandoned girder bridge over Grand Avenue, Carlton Street, South Michigan Street, & Interstate 35 on Duluth, Missabe, & Iron Range Railroad Ore Dock #5Abandoned
Duluth Aerial Lift Bridge (St. Louis County, Minnesota)
Opened as a transporter bridge in 1905; reconstructed as a vertical-lift bridge in 1930; rehabilitated 1986, 1999, 2007, 2009Vertical-lift through truss bridge over the Duluth Ship Canal on Lake Avenue in DuluthOpen to traffic
DWP - Alley Overpass (St. Louis County, Minnesota)
Lost Bridge over Alley on Duluth, Winnipeg & Pacific RailwayRemoved
DWP - West Duluth Viaduct (St. Louis County, Minnesota)
Lost Pony/through plate girder bridge over 59th Avenue, 58th Avenue, 57th Avenue, 56th Avenue, Central Avenue, Grand Avenue, & Northern Pacific Railway on Duluth, Winnipeg & Pacific RailwayRemoved
DWP Trail - Zoo Stone Arch (St. Louis County, Minnesota)
Built 1911Stone arch bridge over Hiking Trail on DWP TrailOpen to pedestrians only
Huron Cement Rolling Bridge Crane (St. Louis County, Minnesota)
Huron Cement Duluth plantLost Truss bridge over 8th Ave Pier on Slip #3 on bucket crane for ship unloadingRemoved but not replaced
Interstate Bridge (St. Louis County, Minnesota)
Built 1897; Swing span struck and replaced 1906; replaced by Blatnik Bridge 1961, all but northern span removed 1970'sParker through truss bridge over St. Louis River on Fishing pier (former railroad, US 53)Open to pedestrians
John A. Blatnik Bridge (Douglas County, Wisconsin)
Built 1961; rehabilitated 1994Steel through cantilevered arch bridge over St. Louis Bay on I-535/US 53 between Duluth and SuperiorOpen to traffic
Lester River Bridge (St. Louis County, Minnesota)
Built 1935Concrete arch bridge over Lester River on MN 61 in DuluthOpen to traffic
LS&M Wood Trestle (St. Louis County, Minnesota)
Abandoned timber stringer bridgeDerelict/abandoned
Miller Creek Bridge (St. Louis County, Minnesota)
Built 1930Stone arch bridge over Miller Creek on Lincoln Parkway in DuluthOpen to traffic
Miller Creek Bridge (St. Louis County, Minnesota)
Built 1927Concrete arch bridge over Miller Creek on MN 361 (10th Street) in DuluthOpen to traffic
Miller Creek Bridge (St. Louis County, Minnesota)
Built 1925Concrete arch bridge over Miller Creek on 26th Avenue W in DuluthOpen to traffic
Miller Creek Bridge (St. Louis County, Minnesota)
Built 1940Concrete arch bridge over Miller Creek on US 53 in DuluthOpen to traffic
Millers Creek Bridge (St. Louis County, Minnesota)
Built 1925Concrete arch bridge over Millers Creek on 3rd Street W in DuluthOpen to traffic
Millers Creek Bridge (St. Louis County, Minnesota)
Built 1904Stone arch bridge over Millers Creek on Michigan Street in DuluthOpen to traffic
Millers Creek Bridge (St. Louis County, Minnesota)
Built 1904Stone arch bridge over Millers Creek on 1st Street in DuluthOpen to traffic
Minnesota Slip Drawbridge (St. Louis County, Minnesota)
Built 1991Bascule bridge over MInnesota Slip on Pedestrian TrafficOpen to pedestrians only
Mission Creek Bridge (St. Louis County, Minnesota)
Built 1937; Replaced 2019Lost Steel arch bridge over Mission Creek on MN 23 in DuluthReplaced by a new bridge
NSSR - 32nd Avenue Overpass (St. Louis County, Minnesota)
Built 1920; Replaced 2006Concrete arch bridge over MN 699 (32nd Avenue E) on SL&LC Railroad in DuluthReplaced by steel stringer bridge
NSSR - 36th Avenue Overpass (St. Louis County, Minnesota)
Built 1920, Replaced 2014Concrete arch bridge over 36th Avenue E on SL&LC Railroad in DuluthReplaced by a new bridge
NSSR - Lester River Bridge (St. Louis County, Minnesota)
Built 1896; Main Deck Truss Replaced 1944Deck plate girder bridge over Lester River on Railroad (NSSR)Open to traffic
NSSR - Tischer Creek Bridge (St. Louis County, Minnesota)
Deck plate girder bridge over Tischer Creek on North Shore Scenic RailroadOpen to traffic
Old Lester Park Bridge (St. Louis County, Minnesota)
Replaced 1971Lost Warren pony truss bridge over Lester River on Superior StreetReplaced by a new bridge
Seven Bridges Road Bridge #5 (St. Louis County, Minnesota)
Built 1912; rehabilitated 2001Deck arch bridge over Amity Creek on E SkylineOpen to traffic
Seven Bridges Road Bridge #8 (St. Louis County, Minnesota)
Built 1912Concrete arch bridge over Amity Creek on Skyline Road in DuluthOpen to traffic
Sixth Avenue West Viaduct (St. Louis County, Minnesota)
Built ?; Replaced 1967Lost Pratt through truss bridge over Duluth Union Depot on 6th Avenue WestReplaced by a new bridge
St. Louis River Bridge (St. Louis County, Minnesota)
Built 1919Concrete arch bridge over St. Louis River on MN 23 in DuluthOpen to traffic
Stewart Creek Bridge (St. Louis County, Minnesota)
Built 1919Stone arch bridge over Stewart Creek on Skyline Parkway in DuluthOpen to traffic
Superior Street Bridge (St. Louis County, Minnesota)
Built 1904Stone arch bridge over Miller Creek on Superior Street in DuluthOpen to traffic
Tischer Creek Bridge (St. Louis County, Minnesota)
Built 1925Concrete arch bridge over Tischer Creek on 4th Street in DuluthOpen to traffic
Tischers Creek Bridge (St. Louis County, Minnesota)
Built 1915Stone arch bridge over Tischers Creek on MN 61 in DuluthOpen to traffic
Tischers Creek Bridge (St. Louis County, Minnesota)
Built 1922Concrete arch bridge over Tischers Creek on MN 923 in DuluthOpen to traffic