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Bridges Found: 17


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Heron Bridge

Status: Open to traffic

Location: 48.068611,-115.979167

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Carries CR 004 over Cabinet Gorge Reservoir
Design: truss/deck
Design Details: Deck truss
Total Length: 694.9 Feet
Span Length: 359.9 Feet

Overview: Deck truss bridge over Cabinet Gorge Reservoir on CR 004 in Heron
History: Built 1952
Built: 1952

Location: Sanders County

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Birdland Bay Bridge

Status: Open to traffic

Location: 47.621525,-115.391402

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Carries CR 066 over Clark Fork
Design: truss/through/parker
Design Details: 11-panel, riveted Parker through truss
Total Length: 310.1 Feet
Span Length: 274.9 Feet

Overview: Parker through truss bridge over Clark Fork on CR 066
History: Built 1928
Built: 1928

Location: Sanders County

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Thompson River Bridge

Status: Open to traffic

Location: 47.579469,-115.236774

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Carries MT 200 over Thompson River
Design: truss/deck
Design Details: Deck truss
Total Length: 426.9 Feet
Span Length: 201.1 Feet

Overview: Deck truss bridge over Thompson River on MT 200
History: Built 1935
Built: 1935

Location: Sanders County

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MRL - Clark Fork River Bridge #14

Status: Open to traffic

Location: 47.382501,-114.800357

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Carries Montana Rail Link over Clark Fork River
Design: truss/through/pratt
Design Details: Four unit through truss
Total Length: 866.0 Feet
Span Length: 187.0 Feet

Overview: Through truss bridge over Clark Fork River on MRL
History: Built 1908
Built: 1908

Location: Sanders County

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196919

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Photo taken by Garrett Boon in April 2011

196920

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Photo taken by Garrett Boon in April 2011

196921

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Photo taken by Garrett Boon in April 2011

196922

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Photo taken by Garrett Boon in April 2011

462244

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MRL - Clark Fork River Bridge No. 1

taken in August 2009

Photo from CNN

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MRL - Flathead River Bridge

Status:

Location: 47.336002,-114.647482

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Carries Montana RailLink over Flathead River
Design: truss/through/pratt
Design Details: Four-span Pratt through truss
Total Length: 734.0 Feet
Span Length: 183.0 Feet

Overview: Through truss bridge over Flathead River on Montana RailLink
History: Built 1896, Reinforced 1945
Built: 1896

Location: Sanders County

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196908

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Photo taken by Garrett Boon in April 2011

196909

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Photo taken by Garrett Boon in April 2011

196910

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Photo taken by Garrett Boon in April 2011

196911

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Photo taken by Garrett Boon in April 2011

196912

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Photo taken by Garrett Boon in April 2011

196913

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Photo taken by Garrett Boon in April 2011

196914

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Photo taken by Garrett Boon in April 2011

196915

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Photo taken by Garrett Boon in April 2011

196916

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Photo taken by Garrett Boon in April 2011

196917

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Photo taken by Garrett Boon in April 2011

196918

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Photo taken by Garrett Boon in April 2011

421260

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Flathead River Bridge NPRR

Photo taken by Richard Doody in September 2013

421261

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Flathead River Bridge NPRR

Photo taken by Richard Doody in September 2013

421262

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Flathead River Bridge NPRR

Photo taken by Richard Doody in September 2013

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MRL - Clark Fork River Bridge #13

Status: Open to traffic

Location: 47.316222,-114.866693

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Carries Montana RailLink over Clark Fork River
Design: truss/through/pratt
Design Details: Three-span Pratt through truss
Total Length: 696.0 Feet
Span Length: 187.0 Feet

Overview: Through truss bridge over Clark Fork River on Montana RailLink
History: Built 1908
Built: 1908

Location: Sanders County

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196923

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Photo taken by Garrett Boon in April 2011

196924

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Photo taken by Garrett Boon in April 2011

196925

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Photo taken by Garrett Boon in April 2011

196926

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Photo taken by Garrett Boon in April 2011

403134

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Photo taken by Garrett Boon in September 2017

403135

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Photo taken by Garrett Boon in September 2017

403136

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Photo taken by Garrett Boon in September 2017

403137

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Photo taken by Garrett Boon in September 2017

403138

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Photo taken by Garrett Boon in September 2017

403139

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Photo taken by Garrett Boon in September 2017

403140

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Photo taken by Garrett Boon in September 2017

403141

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Photo taken by Garrett Boon in September 2017

403142

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Photo taken by Garrett Boon in September 2017

403143

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Photo taken by Garrett Boon in September 2017

403144

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Photo taken by Garrett Boon in September 2017

403145

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Photo taken by Garrett Boon in September 2017

403146

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Photo taken by Garrett Boon in September 2017

403147

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Photo taken by Garrett Boon in September 2017

403148

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Photo taken by Garrett Boon in September 2017

403149

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Photo taken by Garrett Boon in September 2017

403150

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Photo taken by Garrett Boon in September 2017

403151

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Photo taken by Garrett Boon in September 2017

403152

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Photo taken by Garrett Boon in September 2017

403153

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Photo taken by Garrett Boon in September 2017

421267

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Clark Fork River Bridge NPRR

Photo taken by Richard Doody in September 2013

421268

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Clark Fork River Bridge NPRR

Photo taken by Richard Doody in September 2013

421269

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Clark Fork River Bridge NPRR

Photo taken by Richard Doody in September 2013

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MRL - Clark Fork River Bridge #12

Status: Open to traffic

Location: 47.321778,-114.892164

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Carries Montana RailLink over Clark Fork River
Design: truss/deck/pratt
Design Details:
Total Length: 456.0 Feet
Span Length: 150.0 Feet

Overview: Bridge over Clark Fork River on Montana RailLink
History: Built 1908, Reinforced date unknown
Built: 1908

Location: Sanders County

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196927

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Photo taken by Garrett Boon in April 2011

196928

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Photo taken by Garrett Boon in April 2011

196929

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Photo taken by Garrett Boon in April 2011

196930

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Photo taken by Garrett Boon in April 2011

196931

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Photo taken by Garrett Boon in April 2011

196932

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Photo taken by Garrett Boon in April 2011

196933

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Photo taken by Garrett Boon in April 2011

196934

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Photo taken by Garrett Boon in April 2011

421263

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Clark Fork River Bridge NPRR

Photo taken by Richard Doody in September 2013

421264

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Clark Fork River Bridge NPRR

Photo taken by Richard Doody in September 2013

421265

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Clark Fork River Bridge NPRR

Photo taken by Richard Doody in September 2013

421266

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Clark Fork River Bridges

Photo taken by Richard Doody in September 2013

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MRL - Clark Fork River Bridge #11

Status: Open to traffic

Location: 47.327626,-114.909609

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Carries Montana RailLink over Clark Fork River
Design: truss/deck/pratt
Design Details: Steel Pratt Deck truss with Steel arch assisting element
Total Length: 543.0 Feet
Span Length: 150.0 Feet

Overview: Pratt deck truss bridge over Clark Fork River on Montana RailLink
History: Built 1908
Built: 1908

Location: Sanders County

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403124

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Photo taken by Garrett Boon in September 2017

403125

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Photo taken by Garrett Boon in September 2017

403126

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Photo taken by Garrett Boon in September 2017

403127

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Photo taken by Garrett Boon in September 2017

403128

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Photo taken by Garrett Boon in September 2017

403129

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Photo taken by Garrett Boon in September 2017

403130

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Photo taken by Garrett Boon in September 2017

403131

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Photo taken by Garrett Boon in September 2017

403132

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Photo taken by Garrett Boon in September 2017

403154

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Photo taken by Garrett Boon in September 2017

403155

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Photo taken by Garrett Boon in September 2017

403156

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Photo taken by Garrett Boon in September 2017

403157

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Photo taken by Garrett Boon in September 2017

403158

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Photo taken by Garrett Boon in September 2017

403159

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Photo taken by Garrett Boon in September 2017

403160

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Photo taken by Garrett Boon in September 2017

403161

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Photo taken by Garrett Boon in September 2017

403162

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Photo taken by Garrett Boon in September 2017

403163

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Photo taken by Garrett Boon in September 2017

403164

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Photo taken by Garrett Boon in September 2017

403165

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Photo taken by Garrett Boon in September 2017

403166

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Photo taken by Garrett Boon in September 2017

403167

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Photo taken by Garrett Boon in September 2017

403168

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Photo taken by Garrett Boon in September 2017

403169

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Photo taken by Garrett Boon in September 2017

403170

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Photo taken by Garrett Boon in September 2017

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MRL - Clark Fork River Bridge #10

Status: Open to traffic

Location: 47.330476,-114.924350

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Carries Montana RailLink over Clark Fork River
Design: truss/deck/warren
Design Details: Warren deck truss
Total Length: 730.0 Feet
Span Length: 160.0 Feet

Overview: Warren Deck truss bridge over Clark Fork River on Montana RailLink
History: Built 1908
Built: 1908

Location: Sanders County

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Noxon Bridge

Status: Open to traffic

Location: 47.996167,-115.765073

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Carries Klakken Road (CR 20) over Clark Fork River
Design: truss/through/parker
Design Details: 3 Span Parker Through Truss Bridge
Total Length: 600.1 Feet
Span Length: 198.2 Feet

Overview: Parker through truss bridge over Clark Fork River on Klakken Road
History: Built 1922, Reconstructed 1998,
Built: 1922

Location: Sanders County

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196723

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Looking through Bridge From Noxon

Photo taken by Garrett Boon in February 2011

196724

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Photo taken by Garrett Boon in April 2011

196725

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Photo taken by Garrett Boon in February 2011

196726

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Photo taken by Garrett Boon in February 2011

196727

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Photo taken by Garrett Boon in February 2011

196729

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Photo taken by Garrett Boon in February 2011

196730

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Photo taken by Garrett Boon in February 2011

196731

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Photo taken by Garrett Boon in February 2011

501417

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Photo taken by John Bernhisel in June 2021

501418

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Photo taken by John Bernhisel in June 2021

501419

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Photo taken by John Bernhisel in June 2021

501420

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Photo taken by John Bernhisel in June 2021

501421

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Photo taken by John Bernhisel in June 2021

501422

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Photo taken by John Bernhisel in June 2021

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Dry Channel Bridge

Status: Open to pedestrians

Location: 47.593483,-115.353739

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Carries Pedestrian Traffic over Clark Fork
Design: truss/through/pratt
Design Details: (3)5-panel, Pinned Pratt through trusses
Total Length: 377.0 Feet
Span Length: 0.0 Feet

Overview: Pratt through truss bridge over Clark Fork on trail
History: Built 1911
Built: 1911

Location: Sanders County

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223607

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View Looking Southeast, 3/4 Elevation

Photo taken for the Historic American Engineering Record

223608

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View Looking Northeast, 3/4 View From Below Showing Floor Beams And Piers

Photo taken for the Historic American Engineering Record

464887

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Dry Channel Bridge

Photo from Montanahistoriclandscape

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Main Channel Bridge

Status: Open to traffic

Location: 47.590560,-115.355112

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Carries Pedestrian Traffic over Clark Fork
Design: truss/deck/pratt
Design Details: Parker Deck Truss Pratt deck truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet

Overview: Pratt deck truss bridge over Clark Fork on Pedestrian Traffic
History: Built 1911
Built: 1911

Location: Sanders County

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223609

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View Looking West, General Elevation Of Bridge And Clark Fork River Dam

Photo taken by Jet Lowe for the Historic American Engineering Record

223610

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View Looking Southwest, 3/4 Elevation

Photo taken by Jet Lowe for the Historic American Engineering Record

223611

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View Looking West, General Elevation Of Bridge And Clark Fork River Dam

Photo taken for the Historic American Engineering Record

223612

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View Looking West, General Elevation

Photo taken for the Historic American Engineering Record

223613

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View Looking Southeast, General Elevation

Photo taken for the Historic American Engineering Record

223614

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View Looking West, Elevation Of Center Three Trusses

Photo taken for the Historic American Engineering Record

223615

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View Looking North, 3/4 Elevation From Below

Photo taken for the Historic American Engineering Record

223616

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View Looking West, Showing Center Span And Two Piers

Photo taken for the Historic American Engineering Record

223617

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View Looking North, 3/4 Elevation Showing Bend In Bridge Deck

Photo taken for the Historic American Engineering Record

223618

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View Looking Southwest, 3/4 Elevation

Photo taken for the Historic American Engineering Record

223619

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View Looking Southwest, Showing Approach Structure

Photo taken for the Historic American Engineering Record

223620

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View Looking South, 'Barrel Shot' Showing Underside Of Deck

Photo taken for the Historic American Engineering Record

223621

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Detail View Of Truss Seat And Underside Of Deck

Photo taken for the Historic American Engineering Record

464889

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Main Channel Bridge

looking south

Photo from Montanahistoriclandscape

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MRL - Noxon Reservoir Bridge

Status: Open to traffic

Location: 47.861723,-115.653289

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Carries Montana Rail Link over Noxon Reservoir
Design: truss/through
Design Details: Through truss
Total Length: 715.0 Feet
Span Length: 0.0 Feet

Overview: Through truss bridge over Noxon Reservoir on Montana Rail Link
History:
Built: 1959

Location: Sanders County

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465619

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MRL - Noxon Reservoir Bridge

looking west

Photo taken by Moffat Road

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MRL - Thompson River Bridge

Status: Open to traffic

Location: 47.577453,-115.239735

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Carries Montana Rail Link over Thompson River
Design: girder/deck/plate
Design Details: Deck plate girder
Total Length: 233.0 Feet
Span Length: 77.0 Feet

Overview: Deck plate girder bridge over Thompson River on Montana Rail Link
History: Built 1910, 77' Spans Added 1925
Built:

Location: Sanders County

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MRL - Clark Fork Bridge (Belknap)

Status: Open to traffic

Location: 47.653681,-115.399015

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Carries Montana Rail Link over Clark Fork
Design: truss/deck/warren
Design Details: Warren deck truss
Total Length: 566.0 Feet
Span Length: 162.0 Feet

Overview: Warren deck truss bridge over Clark Fork on Montana Rail Link
History: Built 1905, Two girders built 1938, Trusses built 1948
Built: 1948

Location: Sanders County

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MRL - John Tunnel

Status: Open to traffic

Location: 47.334817,-114.787235

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Carries Montana Rail Link over hillside
Design: tunnel
Design Details: Tunnel
Total Length: 0.0 Feet
Span Length: 0.0 Feet

Overview: Tunnel under hillside on Montana Rail Link
History:
Built:

Location: Sanders County

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Clark Fork Bridge - Thompson Falls

Status: Replaced by a new bridge

Location: 47.604375,-115.374239

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Carries SR 200 over Clark Fork
Design: truss/through/pratt
Design Details: (3)5-panel, pinned Pratt through trusses.
Total Length: 0.0 Feet
Span Length: 0.0 Feet

Overview: Lost Pratt through truss bridge over Clark Fork on SR 200
History:
Built:

Location: Sanders County

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497895

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Clark Fork Bridge - Thompson Falls

Photo from old postcard


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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