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Bridges Found: 28


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Dedham Road Bridge

Status: Replaced by a new bridge

Location: 46.578200,-92.182000

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Carries Dedham Road over Nemadji River
Design: truss/through
Design Details: Through truss
Total Length: 100.4 Feet
Span Length: 97.8 Feet

Overview: Through truss bridge over Nemadji River on Dedham Road
History: Built 1914
Built: 1914

Location: Douglas County

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Middle River Bridge

Status: Open to traffic

Location: 46.548930,-91.888561

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Carries Road 11 over Middle River
Design: arch/deck
Design Details: Arch
Total Length: 37.1 Feet
Span Length: 33.1 Feet

Overview: Concrete arch bridge over Middle River on Road 11
History: Built 1925
Built: 1925

Location: Douglas County

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Sleepy Valley Loop Bridge

Status: Open to traffic

Location: 46.650870,-91.804941

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Carries Sleepy Valley Loop over Middle River
Design: truss/pony/warren/alt-verticals
Design Details: Riveted Warren pony truss with alternating verticals
Total Length: 78.7 Feet
Span Length: 76.1 Feet

Overview: Warren pony truss bridge over Middle River on Sleepy Valley
History: Built 1910
Built: 1910

Location: Douglas County

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John A. Blatnik Bridge

Status: Open to traffic
Slated for demolition and replacement in 2028.

Location: 46.749242,-92.100964

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Carries I-535/US 53 over St. Louis Bay
Design: arch/through/steel
Design Details: Steel through arch
Total Length: 1140.1 Feet
Span Length: 600.1 Feet

Overview: Steel through arch bridge over St. Louis Bay on I-535/US 53 between Duluth and Superior
History: Built 1961; rehabilitated 1994
Built: 1961

Location: Douglas County

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Divider

112544

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Oblique View

Photo taken by J.R. Manning in June 2006

112545

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North Approach

Photo taken by J.R. Manning in June 2006

195492

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View of main span from the Interstate Bridge

Photo taken by Matthew Lohry in March 2011

195493

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View of truss/main support bent

Photo taken by Matthew Lohry in March 2011

195494

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View of deck truss portion of main span

Photo taken by Matthew Lohry in March 2011

195495

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Closeup of main span

Photo taken by Matthew Lohry in March 2011

299382

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Photo taken by Max Koehn in October 2014

299383

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Photo taken by Max Koehn in August 2011

299384

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Photo taken by Max Koehn in October 2011

299385

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Photo taken by Max Koehn in October 2011

314790

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Photo provided by Hank Zaletel

458415

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Photo taken by Ben Tate in September 2019

458416

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Photo taken by Ben Tate in September 2019

458417

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Photo taken by Ben Tate in September 2019

458418

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Photo taken by Ben Tate in September 2019

458419

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Photo taken by Ben Tate in September 2019

458420

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Photo taken by Ben Tate in September 2019

458421

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Photo taken by Ben Tate in September 2019

458422

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Photo taken by Ben Tate in September 2019

458423

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Photo taken by Ben Tate in September 2019

458424

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Photo taken by Ben Tate in September 2019

458425

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Photo taken by Ben Tate in September 2019

458426

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Photo taken by Ben Tate in September 2019

458427

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Photo taken by Ben Tate in September 2019

458428

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Photo taken by Ben Tate in September 2019

458429

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Photo taken by Ben Tate in September 2019

458430

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Photo taken by Ben Tate in September 2019

458431

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Photo taken by Ben Tate in September 2019

458432

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Photo taken by Ben Tate in September 2019

458433

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Photo taken by Ben Tate in September 2019

458434

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Photo taken by Ben Tate in September 2019

458435

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Photo taken by Ben Tate in September 2019

477825

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Photo taken by Jason Smith in July 2018

477826

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Photo taken by Jason Smith in July 2018

477827

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Photo taken by Jason Smith in July 2018

477828

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Photo taken by Jason Smith in July 2018

477829

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Photo taken by Jason Smith in July 2018

477830

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Photo taken by Jason Smith in July 2018

477831

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Photo taken by Jason Smith in July 2018

477832

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Photo taken by Jason Smith in July 2018

477833

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Photo taken by Jason Smith in July 2018

477834

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Photo taken by Jason Smith in July 2018

482490

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Duluth 14

Blatnik Bridge with Interstate Bridge in background in 1965.

Photo taken by Ed Hollowell

499523

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View from southeast

Photo taken by Josh Schmid in May 2021

499524

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Arch span from southeast

Photo taken by Josh Schmid in May 2021

499525

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View from Enger Park

Photo taken by Josh Schmid in May 2021

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Richard I. Bong Bridge

Status: Open to traffic

Location: 46.731516,-92.143346

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Carries US 2 over St. Louis River
Design: arch/deck/steel
Design Details: Steel bowstring tied arch
Total Length: 500.0 Feet
Span Length: 500.0 Feet

Overview: Steel bowstring tied arch bridge over St. Louis River on US 2 in Superior
History: Built 1983; rehabilitated 1984
Built: 1983

Location: Douglas County

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Divider

265859

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Tied arch at the bridge's height

Photo taken by Max Koehn in August 2011

265860

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A closer look at the arch

Photo taken by Max Koehn in August 2011

265861

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The various beams, gussets, and rivets that form the arch

Photo taken by Max Koehn in August 2013

265862

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One of the support cables

Photo taken by Max Koehn in August 2013

265863

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one last look at the arch

Photo taken by Max Koehn in August 2011

299381

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The bridge in its entirety

Photo taken by Max Koehn in October 2014

458409

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Photo taken by Ben Tate in September 2019

458410

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Photo taken by Ben Tate in September 2019

458411

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Photo taken by Ben Tate in September 2019

458412

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Photo taken by Ben Tate in September 2019

458413

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Photo taken by Ben Tate in September 2019

458414

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Photo taken by Ben Tate in September 2019

499526

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View from Enger Park

Photo taken by Josh Schmid in May 2021

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Taylor Bridge

Status: Replaced by new bridge and now in private ownership

Location: 46.590000,-91.833000

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Carries Bayfield Road over Middle River
Design: truss/pony/queenpost
Design Details: Bolter, timber pony truss, queenpost configuration, wood deck, wood curb and wood railings. It was the only queenpost pony truss in Wisconsin when it was removed. It was reportedly sold to a private party that reassembled it on private property.
Total Length: 40.8 Feet
Span Length: 40.8 Feet

Overview: Queenpost pony truss bridge over Middle River on Bayfield Road in Amnicon
History: Built 1929-1930; Replaced by a new bridge in 1998 and moved to another location on dry ground.
Built: 1930

Location: Douglas County

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119990

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North Side, Looking South

Photo taken by Jerry Mathiason, June 1997 for HAER

119991

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South Side, Looking North

Photo taken by Jerry Mathiason, June 1997 for HAER

119992

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West Approach, Looking East

Photo taken by Jerry Mathiason, June 1997 for HAER

119993

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East Approach, Looking West

Photo taken by Jerry Mathiason, June 1997 for HAER

119994

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Detail Of North Side Showing Railing, Inclined Endpost, Verticals, Diagonals And Bracing, Looking West

Photo taken by Jerry Mathiason, June 1997 for HAER

119995

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Interior Of Span, Looking West

Photo taken by Jerry Mathiason, June 1997 for HAER

119996

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Interior Truss Detail Showing Deck, Curb, Railing, And Intersection Of Truss Members, Looking Northeast

Photo taken by Jerry Mathiason, June 1997 for HAER

119997

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Detail Of Upper Chord Intersection With Inclined Endpost, Vertical, Diagonal And Bracing, Looking North

Photo taken by Jerry Mathiason, June 1997 for HAER

119998

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East Abutment, South Side, Looking North

Photo taken by Jerry Mathiason, June 1997 for HAER

119999

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Underside Of Deck, Looking West

Photo taken by Jerry Mathiason, June 1997 for HAER

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Amnicon Falls Bridge

Status: Open to pedestrians

Location: 46.610880,-91.891310

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Carries Pedestrian Trail over Amnicon River
Design: truss/pony/bowstring
Design Details: Bowstring pony truss of Charles Horton's patented design.
Total Length: 55.0 Feet
Span Length: 55.0 Feet

Overview: Bowstring pony truss bridge over Amnicon River on Amnicon Falls State Park Trail
History: Built ca. 1900 by Charles Horton, moved to Amnicon Fall State Park in 1930 and roof added in 1939.
Built: ca.1900

Location: Douglas County

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169743

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Wisconsin DNR

224057

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Photo taken by Steve Conro in September 2006

224058

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You can see the old bowstring structure outside the wood wrapper

Photo taken by Steve Conro in September 2006

336924

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Photo taken by John Loxton in August 2007

496918

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Amnicon River, Lower Falls Bridge, 1995

Photo taken by GS

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Oliver Swing Bridge

Status: Open to traffic

Location: 46.656730,-92.201555

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Carries WI 105 and CN Railway over St. Louis River
Design: truss/deck/warren
Design Details: Swing Warren deck truss
Total Length: 1904.9 Feet
Span Length: 149.9 Feet

Overview: Double-decker swing bridge over St. Louis River on WI 105 and CN Railway
History: Built 1910
Built: 1910

Location: Douglas County

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148064

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Oblique View

The Oliver Swing Bridge is an unusual two-level swing bridge. The lower level is State Highway 105, the upper level is the Burlington Northern & Santa Fe Railway. This bridge allowed navigation on the St. Louis River as far as New Duluth, MN

Photo taken by Robert Thompson

148065

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West Portal

The railroad deck, looking east from the Minnesota side towards Wisconsin. The Burlington Northern & Santa Fe Railway carried Cuyuna Range iron ore to the Superior ore docks.

Photo taken by Robert Thompson

148066

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Center Pier and Mechanism

Close-up of the center pier and turntable gearing. The bridge is currently frozen shut; it is unlikely that the bridge has opened since World War II.

Photo taken by Robert Thompson

264147

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Oliver bridge

Photo taken by Douglas Butler in July 2013

309650

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Oliver bridge

Wisconsin

Photo taken by Douglas Butler in December 2014

460909

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Oliver Bridge Construction

Matt Johnson

460910

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Matt Johnson

472989

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Oliver Swing Bridge

Photo from Mapio.net

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Nemadji River Bridge

Status: Replaced by new bridge

Location: 46.593333,-92.120000

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Carries Sth 35 over Nemadji River
Design: truss/through/polygonal
Design Details: Polygonal Warren through truss, or camelback Warren through truss
Total Length: 378.6 Feet
Span Length: 200.5 Feet

Overview: Lost Polygonal Warren through truss bridge over Nemadji River on Sth 35
History: Built 1948; rehabilitated 1987; replaced 2003
Built: 1948

Location: Douglas County

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Divider

158337

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Inside view of main truss and sway bracing

Photo taken in 1999 by Matthew Lohry

158338

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Distant elevation

Photo taken by Matthew Lohry

158339

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Distant oblique portal view

Photo taken by Matthew Lohry

158340

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Builder's plaque

Photo taken by Matthew Lohry

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BNSF - Nemadji River Bridge (Saunders)

Status: Open to traffic

Location: 46.640345,-92.097033

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Carries over Nemadji River
Design: truss/deck/warren
Design Details: Warren deck truss
Total Length: 1738.0 Feet
Span Length: 150.0 Feet

Overview: Warren deck truss bridge over Nemadji River on BNSF Railway
History: Built 1899. Approached rebuilt 1906, lengthened 1912, West Approach Rebuilt 2009
Built: 1899

Location: Douglas County

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Divider

225869

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Stilted Bridge

Max Medlin, February 2011

274130

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BNSF Nemadji River Bridge

From River

Photo taken by John Marvig in February 2014

274131

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BNSF Nemadji River Bridge

East Approach

Photo taken by John Marvig in February 2014

274132

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BNSF Nemadji River Bridge

East Approach

Photo taken by John Marvig in February 2014

274133

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BNSF Nemadji River Bridge

Main Span

Photo taken by John Marvig in February 2014

274134

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BNSF Nemadji River Bridge

Pier

Photo taken by John Marvig in February 2014

274135

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BNSF Nemadji River Bridge

Tower on Old West Approach

Photo taken by John Marvig in February 2014

274136

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BNSF Nemadji River Bridge

West Approach

Photo taken by John Marvig in February 2014

274137

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BNSF Nemadji River Bridge

Pier

Photo taken by John Marvig in February 2014

274138

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BNSF Nemadji River Bridge

Pier on former west approach

Photo taken by John Marvig in February 2014

274139

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BNSF Nemadji River Bridge

West Abutment

Photo taken by John Marvig in February 2014

274140

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BNSF Nemadji River Bridge

Overview

Photo taken by John Marvig in February 2014

274141

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BNSF Nemadji River Bridge

Truss

Photo taken by John Marvig in February 2014

274142

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BNSF Nemadji River Bridge

Date on West Approach

Photo taken by John Marvig in February 2014

274143

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BNSF Nemadji River Bridge

Old Supports

Photo taken by John Marvig in February 2014

274144

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BNSF Nemadji River Bridge

Looking East

Photo taken by John Marvig in February 2014

274145

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BNSF Nemadji River Bridge

Lower Connection

Photo taken by John Marvig in February 2014

274146

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BNSF Nemadji River Bridge

Pier

Photo taken by John Marvig in February 2014

274147

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BNSF Nemadji River Bridge

Under Truss

Photo taken by John Marvig in February 2014

274148

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BNSF Nemadji River Bridge

Truss

Photo taken by John Marvig in February 2014

274149

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BNSF Nemadji River Bridge

Truss

Photo taken by John Marvig in February 2014

274150

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BNSF Nemadji River Bridge

Compare to photo before (with sun)

Photo taken by John Marvig in February 2014

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CN - Nemadji River Bridge (Saunders)

Status: Open to traffic

Location: 46.638503,-92.090789

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Carries Canadian National Railway over Nemadji River
Design: girder/deck/plate
Design Details: Deck plate girder
Total Length: 2438.0 Feet
Span Length: 95.0 Feet

Overview: Deck plate girder bridge over Nemadji River on Canadian National Railway
History: Built Ca. 1910
Built:

Location: Douglas County

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Divider

274109

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CN Nemadji River Bridge

Fullsize Overview from West End

Photo taken by John Marvig in February 2014

274110

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CN Nemadji River Bridge

Fullsize Overview from Hill on West End

Photo taken by John Marvig in February 2014

274111

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CN Nemadji River Bridge

Photo taken by John Marvig in February 2014

274112

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CN Nemadji River Bridge

West Abutment

Photo taken by John Marvig in February 2014

274113

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CN Nemadji River Bridge

Tower

Photo taken by John Marvig in February 2014

274114

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CN Nemadji River Bridge

Tower

Photo taken by John Marvig in February 2014

274115

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CN Nemadji River Bridge

Photo taken by John Marvig in February 2014

274116

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CN Nemadji River Bridge

West End

Photo taken by John Marvig in February 2014

274117

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CN Nemadji River Bridge

Photo taken by John Marvig in February 2014

274118

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CN Nemadji River Bridge

Tower Spans

Photo taken by John Marvig in February 2014

274119

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CN Nemadji River Bridge

Tower Base

Photo taken by John Marvig in February 2014

274120

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CN Nemadji River Bridge

Tower Base (appears newer)

Photo taken by John Marvig in February 2014

274121

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CN Nemadji River Bridge

Tower

Photo taken by John Marvig in February 2014

274122

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CN Nemadji River Bridge

Photo taken by John Marvig in February 2014

274123

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CN Nemadji River Bridge

Photo taken by John Marvig in February 2014

274124

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CN Nemadji River Bridge

River Span is thicker

Photo taken by John Marvig in February 2014

274125

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CN Nemadji River Bridge

On river

Photo taken by John Marvig in February 2014

274126

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CN Nemadji River Bridge

River Span

Photo taken by John Marvig in February 2014

274127

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CN Nemadji River Bridge

Tower

Photo taken by John Marvig in February 2014

274128

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CN Nemadji River Bridge

Tower

Photo taken by John Marvig in February 2014

274129

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CN Nemadji River Bridge

Tower

Photo taken by John Marvig in February 2014

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BNSF - Nemadji River Bridge (Bolyston)

Status: Open to traffic

Location: 46.593316,-92.121048

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Carries BNSF Railway over Nemadji River
Design: girder/deck/plate
Design Details: Deck Girder Spans on Steel Towers
Total Length: 1400.0 Feet
Span Length: 100.0 Feet

Overview: Deck plate bridge over Nemadji River on BNSF Railway near Boylston
History: Built 1897
Built: 1897

Location: Douglas County

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242433

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Photo taken by Jerry Huddleson

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CN - Nemadji River Bridge (South Superior)

Status: Open to traffic

Location: 46.659633,-92.079942

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Carries Railroad (CN) over Nemadji River
Design: truss/half
Design Details: Warren half-through truss
Total Length: 360.0 Feet
Span Length: 200.0 Feet

Overview: Warren pony truss bridge over Nemadji River on Canadian National Railway
History: Built 1906
Built: 1906

Location: Douglas County

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Divider

344353

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Looking South

Photo taken by Charles Kuehn, June 1999

344354

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Looking Northeast

Photo taken by Charles Kuehn, June 1999

344355

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Looking Southeast

Photo taken by Charles Kuehn, June 1999

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Nemadji River bridge

Status: Abandoned

Location: 46.652862,-92.097827

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Carries E Hammond Ave/E Limits Rd over Nemadji River
Design: truss/through/pratt
Design Details: Pin-connected 6-panel Pratt through truss
Total Length: 100.0 Feet
Span Length: 100.0 Feet

Overview: Pratt through truss bridge over Nemadji River on E Hammond Ave/E Limits Rd
History: Damaged by fire and abandoned in 1976
Built:

Location: Douglas County

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Divider

244453

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Photo taken by Mike Olszewski

244454

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Photo taken by Mike Olszewski

244455

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Photo taken by Mike Olszewski

244456

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Photo taken by Mike Olszewski

244457

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Photo taken by Mike Olszewski

244458

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Photo taken by Mike Olszewski

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Osaugie Trail - Nemadji River Bridge

Status: Open to pedestrians only

Location: 46.697242,-92.032493

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Carries Osaugie Trail over Nemadji River
Design: girder/pony/plate
Design Details: Pony plate girder swing bridge with trestle approach
Total Length: 230.0 Feet
Span Length: 75.0 Feet

Overview: Pony/through plate girder bridge over Nemadji River on Osaugie Trail
History: Built 1904
Built: 1904

Location: Douglas County

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Divider

241286

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Photo taken by Brad

264150

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Photo taken by Douglas Butler in March 2013

274070

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Osaugie Trail Bridge

Overview

Photo taken by John Marvig in February 2014

274071

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Osaugie Trail Bridge

West End

Photo taken by John Marvig in February 2014

274072

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Osaugie Trail Bridge

Swing Pier

Photo taken by John Marvig in February 2014

274073

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Osaugie Trail Bridge

Looking East

Photo taken by John Marvig in February 2014

274074

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Osaugie Trail Bridge

Old West Abutment

Photo taken by John Marvig in February 2014

274075

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Osaugie Trail Bridge

Looking East Along Bridge

Photo taken by John Marvig in February 2014

274076

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Osaugie Trail Bridge

West Abutment

Photo taken by John Marvig in February 2014

274077

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Osaugie Trail Bridge

Looking East

Photo taken by John Marvig in February 2014

274078

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Osaugie Trail Bridge

Looking East

Photo taken by John Marvig in February 2014

274079

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Osaugie Trail Bridge

Plate

Photo taken by John Marvig in February 2014

274080

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Osaugie Trail Bridge

Looking West

Photo taken by John Marvig in February 2014

274081

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Osaugie Trail Bridge

Trestle on East Side

Photo taken by John Marvig in February 2014

274082

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Osaugie Trail Bridge

East Abutment

Photo taken by John Marvig in February 2014

274083

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Osaugie Trail Bridge

From East Bank

Photo taken by John Marvig in February 2014

274084

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Osaugie Trail Bridge

Swing Pier

Photo taken by John Marvig in February 2014

274085

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Osaugie Trail Bridge

Looking West

Photo taken by John Marvig in February 2014

274086

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Osaugie Trail Bridge

Gears (that work)

Photo taken by John Marvig in February 2014

274087

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Osaugie Trail Bridge

Old East Abutment

Photo taken by John Marvig in February 2014

274088

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Osaugie Trail Bridge

Looking West

Photo taken by John Marvig in February 2014

274089

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Osaugie Trail Bridge

Looking West

Photo taken by John Marvig in February 2014

274090

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Osaugie Trail Bridge

Swing Pier

Photo taken by John Marvig in February 2014

274091

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Osaugie Trail Bridge

West End

Photo taken by John Marvig in February 2014

274092

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Osaugie Trail Bridge

East End

Photo taken by John Marvig in February 2014

274093

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Osaugie Trail Bridge

Overview

Photo taken by John Marvig in February 2014

274094

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Osaugie Trail Bridge

From Hill

Photo taken by John Marvig in February 2014

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BNSF - Black River Bridge

Status: Open

Location: 46.557850,-92.145692

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Carries BNSF Railway over Black River
Design: girder/deck/plate
Design Details: Deck plate girder
Total Length: 1600.0 Feet
Span Length: 100.0 Feet

Overview: Deck Plate Girder Bridge over Black River on BNSF Railway
History:
Built: 1909

Location: Douglas County

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Divider

248400

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Photo taken by Michael Kohlbauer

344535

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Looking south

Photo taken by Charles Kuehn, April 2002

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UP - Nemadji River Bridge

Status: Open

Location: 46.686879,-92.034763

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Carries Union Pacific Railroad over Nemadji River
Design: girder/deck/plate
Design Details: Deck plate girder
Total Length: 2400.0 Feet
Span Length: 80.0 Feet

Overview: Through Girder Bridge over Nemadji River on Union Pacific Railroad
History: Built 1916 on an existing pier
Built: 1916

Location: Douglas County

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Divider

274095

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UP Nemadji River Bridge

Overview

Photo taken by John Marvig in February 2014

274096

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UP Nemadji River Bridge

East Approach

Photo taken by John Marvig in February 2014

274097

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UP Nemadji River Bridge

Swing Pier

Photo taken by John Marvig in February 2014

274098

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UP Nemadji River Bridge

Main Span

Photo taken by John Marvig in February 2014

274099

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UP Nemadji River Bridge

Plate

Photo taken by John Marvig in February 2014

274100

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UP Nemadji River Bridge

Long Approach

Photo taken by John Marvig in February 2014

274101

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UP Nemadji River Bridge

Typical approach span

Photo taken by John Marvig in February 2014

274102

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UP Nemadji River Bridge

Swing Pier

Photo taken by John Marvig in February 2014

274103

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UP Nemadji River Bridge

East Approach

Photo taken by John Marvig in February 2014

274104

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UP Nemadji River Bridge

Photo taken by John Marvig in February 2014

274105

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UP Nemadji River Bridge

Overview

Photo taken by John Marvig in February 2014

274106

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UP Nemadji River Bridge

Looking West

Photo taken by John Marvig in February 2014

274107

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UP Nemadji River Bridge

Looking West

Photo taken by John Marvig in February 2014

274108

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UP Nemadji River Bridge

Looking West

Photo taken by John Marvig in February 2014

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Old Hwy 53 St Croix River Bridge

Status: Open

Location: 46.251809,-91.800295

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Carries Old Hwy 53 over St Croix River
Design: girder/pony/concrete
Design Details: Concrete through girder
Total Length: 35.0 Feet
Span Length: 0.0 Feet

Overview: Concrete pony/through girder bridge over St Croix River on Old Hwy 53
History: Built 1928
Built: 1928

Location: Douglas County

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257771

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Photo taken by Steve Conro in June 2013

257772

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Photo taken by Steve Conro in June 2013

257773

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Photo taken by Steve Conro in June 2013

257774

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Photo taken by Steve Conro in June 2013

257776

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Photo taken by Steve Conro in June 2013

257777

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Photo taken by Steve Conro in June 2013

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Wild Rivers Trail - St Croix River Bridge

Status: Open to pedestrians only

Location: 46.252239,-91.799802

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Carries Wild RIvers Trail (former C&NW Ry) over St Croix River
Design: girder/deck/plate
Design Details: Deck plate girder
Total Length: 160.0 Feet
Span Length: 0.0 Feet

Overview: Deck plate girder bridge over St Croix River on Wild RIvers Trail (former C&NW Ry)
History:
Built:

Location: Douglas County

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257785

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Photo taken by Steve Conro in June 2013

257786

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View from Old Rte 53 bridge

Photo taken by Steve Conro in June 2013

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Grassy Point Drawbridge

Status: Open to traffic

Location: 46.728169,-92.143248

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Carries BNSF Railway over St. Louis River
Design: truss/through/pratt
Design Details: Pratt through truss
Total Length: 1660.0 Feet
Span Length: 430.0 Feet

Overview: Pratt through truss bridge over St. Louis River on BNSF Railway
History: Built 1912
Built: 1912

Location: Douglas County

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274051

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Grassy Point Drawbridge

I coulda gotten closer, but I didn't....always next time

Photo taken by John Marvig in February 2014

274052

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Grassy Point Drawbridge

Swing Span

Photo taken by John Marvig in February 2014

274053

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Grassy Point Drawbridge

West Approach

Photo taken by John Marvig in February 2014

274054

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Grassy Point Drawbridge

Photo taken by John Marvig in February 2014

274055

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Grassy Point Drawbridge

West through Girder

Photo taken by John Marvig in February 2014

274056

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Grassy Point Drawbridge

East Through Girder

Photo taken by John Marvig in February 2014

274057

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Grassy Point Drawbridge

Photo taken by John Marvig in February 2014

274058

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Grassy Point Drawbridge

West Approach

Photo taken by John Marvig in February 2014

274059

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Grassy Point Drawbridge

East Approach

Photo taken by John Marvig in February 2014

274060

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Grassy Point Drawbridge

East Through Girder Span

Photo taken by John Marvig in February 2014

274061

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Grassy Point Drawbridge

Top of Swing Span

Photo taken by John Marvig in February 2014

274062

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Grassy Point Drawbridge

West Leaf

Photo taken by John Marvig in February 2014

274063

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Grassy Point Drawbridge

East Leaf

Photo taken by John Marvig in February 2014

274064

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Grassy Point Drawbridge

Overview

Photo taken by John Marvig in February 2014

274168

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Grassy Point Railroad Draw Swing Bridge

Between Wisconsin and Minnesota

Photo taken by Douglas Butler

458403

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Taken from Bong Bridge

Photo taken by Ben Tate in September 2019

458404

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Photo taken by Ben Tate in September 2019

482485

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Duluth 14

1965

Photo taken by Ed Hollowell

482486

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Duluth 15

1965

Photo taken by Ed Hollowell

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Osaugie Trail - Bluff Creek Bridge

Status: Open to pedestrians only

Location: 46.683797,-92.015138

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Carries Osaugie Trail over Bluff Creek
Design: girder/deck/plate
Design Details: Deck plate girder
Total Length: 142.0 Feet
Span Length: 70.0 Feet

Overview: Deck plate girder bridge over Bluff Creek on Osaugie Trail
History: Built 1955
Built: 1955

Location: Douglas County

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Tri County Corridor - Bois Brule River Bridge

Status: Open to pedestrians only

Location: 46.551934,-91.587221

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Carries Tri County Crridor over Bois Brule River
Design: truss/deck/warren
Design Details: Warren deck truss
Total Length: 223.0 Feet
Span Length: 110.0 Feet

Overview: Warren deck truss bridge over Bois Brule River on Tri County Crridor
History: Built 1895 at Fallon, Montana; Relocated here 1921
Built: 1895

Location: Douglas County

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304827

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Brule River Trail Bridge

Photo taken by John Marvig in October 2014

304828

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Brule River Trail Bridge

West Approach

Photo taken by John Marvig in October 2014

304829

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Brule River Trail Bridge

Photo taken by John Marvig in October 2014

304830

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Brule River Trail Bridge

Lower Connection

Photo taken by John Marvig in October 2014

304831

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Brule River Trail Bridge

Upper Connection

Photo taken by John Marvig in October 2014

304832

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Brule River Trail Bridge

Lower Connection

Photo taken by John Marvig in October 2014

304833

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Brule River Trail Bridge

East Pier

Photo taken by John Marvig in October 2014

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UP - 6th Avenue Bridge

Status: Open to traffic

Location: 46.717942,-92.070230

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Carries Union Pacific Railroad over 6th Avenue
Design: girder/pony/plate
Design Details: Pony plate girder
Total Length: 70.0 Feet
Span Length: 40.0 Feet

Overview: Pony/through plate girder bridge over 6th Avenue on Union Pacific Railroad
History: Built 1915
Built: 1915

Location: Douglas County

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304804

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UP 6th Avenue Bridge

Overview

Photo taken by John Marvig in October 2014

304805

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UP 6th Avenue Bridge

West End

Photo taken by John Marvig in October 2014

304806

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UP 6th Avenue Bridge

East End

Photo taken by John Marvig in October 2014

304807

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UP 6th Avenue Bridge

Overview

Photo taken by John Marvig in October 2014

304808

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UP 6th Avenue Bridge

East End

Photo taken by John Marvig in October 2014

304809

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UP 6th Avenue Bridge

East Pier

Photo taken by John Marvig in October 2014

304810

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UP 6th Avenue Bridge

Photo taken by John Marvig in October 2014

304811

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UP 6th Avenue Bridge

Photo taken by John Marvig in October 2014

304812

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UP 6th Avenue Bridge

Looking East

Photo taken by John Marvig in October 2014

304813

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UP 6th Avenue Bridge

Looking East

Photo taken by John Marvig in October 2014

304814

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UP 6th Avenue Bridge

Looking East

Photo taken by John Marvig in October 2014

304815

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UP 6th Avenue Bridge

Overview

Photo taken by John Marvig in October 2014

304816

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UP 6th Avenue Bridge

East End

Photo taken by John Marvig in October 2014

304817

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UP 6th Avenue Bridge

East Approach

Photo taken by John Marvig in October 2014

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Tri County Corridor - Amnicon Falls Bridge

Status: Open to pedestrians only

Location: 46.605595,-91.890010

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Carries Tri County Corridor over Amnicon River
Design: girder/pony/plate
Design Details: Pony plate girder
Total Length: 185.0 Feet
Span Length: 70.0 Feet

Overview: Pony/through plate girder bridge over Amnicon River on Tri County Corridor
History: Built 1897, Relocated here 1908
Built: 1908

Location: Douglas County

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304818

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Amnicon Falls Trail Bridge

Photo taken by John Marvig in October 2014

304819

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Amnicon Falls Trail Bridge

Looking West

Photo taken by John Marvig in October 2014

304820

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Amnicon Falls Trail Bridge

Lost Plate

Photo taken by John Marvig in October 2014

304821

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Amnicon Falls Trail Bridge

Looking East

Photo taken by John Marvig in October 2014

304822

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Amnicon Falls Trail Bridge

West Approach

Photo taken by John Marvig in October 2014

304823

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Amnicon Falls Trail Bridge

Overview

Photo taken by John Marvig in October 2014

304824

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Amnicon Falls Trail Bridge

Overview

Photo taken by John Marvig in October 2014

304825

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Amnicon Falls Trail Bridge

West Pier

Photo taken by John Marvig in October 2014

304826

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Amnicon Falls Trail Bridge

East Pier

Photo taken by John Marvig in October 2014

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Pelkey Road-Balsam Creek Bridge

Status: Closed to all traffic

Location: 46.499556,-92.259000

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Carries Lrd Pelkey Road over Balsam Creek
Design: beam/stringer/steel
Design Details: Steel stringer
Total Length: 38.1 Feet
Span Length: 33.1 Feet

Overview: Steel stringer bridge over Balsam Creek on Lrd Pelkey Road
History: Built 1915
Built: 1915

Location: Douglas County

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Duluth and Winnepeg Wood Box Culvert

Status: Derelict/abandoned

Location: 46.648619,-92.209878

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Carries over
Design: other
Design Details: Other
Total Length: 0.0 Feet
Span Length: 0.0 Feet

Overview: Abandoned bridge
History: Built 1892
Built: 1892

Location: Douglas County

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460940

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Photo taken by Matthew Johnson in May 2015

460941

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Photo taken by Matthew Johnson in May 2015

460943

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Photo taken by Matthew Johnson in May 2015

460944

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Photo taken by Matthew Johnson in May 2015

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Tri County Corridor - Middle River Bridge

Status: Open to pedestrians only

Location: 46.594736,-91.822998

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Carries Tri County Corridor over
Design: girder/pony/plate
Design Details: Pony plate girder
Total Length: 238.0 Feet
Span Length: 75.0 Feet

Overview: Pony/through plate girder bridge on Tri County Corridor
History: Built 1906 using secondhand parts
Built: 1906

Location: Douglas County

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Tri County Corridor - Poplar River Bridge

Status: Open to pedestrians only

Location: 46.581619,-91.795038

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Carries Tri County Corridor over Poplar River
Design: girder/pony/plate
Design Details: Pony plate girder
Total Length: 323.0 Feet
Span Length: 70.0 Feet

Overview: Pony/through plate girder bridge over Poplar River on Tri County Corridor
History: Built 1906 using secondhand parts
Built: 1906

Location: Douglas County

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Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.

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