Status: No longer exists
Location: 46.211111,-112.091639
Carries CR 304 (hubbard Lane) over Boulder River
Design: truss/through
Design Details: Through truss
Total Length: 74.2 Feet
Span Length: 74.2 Feet
Overview: Lost through truss bridge over Boulder River on CR 304
History: Built 1899; replaced 2001
Built: 1899
Location: Jefferson County
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356709
Boulder River Bridge - Hubbard Lane
Eastern Portal
Photo taken by David Jones in June 2016
356710
Boulder River Bridge - Hubbard Lane
Historical Data
Photo taken by David Jones in June 2016
356711
Boulder River Bridge - Hubbard Lane
Northeastern view
Photo taken by David Jones in June 2016
356712
Boulder River Bridge - Hubbard Lane
Eastern Portal
Photo taken by David Jones in June 2016
356713
Boulder River Bridge - Hubbard Lane
Photo taken by David Jones in June 2016
356714
Boulder River Bridge - Hubbard Lane
Bridge builder & date
Photo taken by David Jones in June 2016
Status: Open to traffic
Location: 45.833333,-111.660980
Carries CR 170 over Jefferson River
Design: truss/through/pratt
Design Details: Pratt through truss
Total Length: 267.4 Feet
Span Length: 130.6 Feet
Overview: Pratt through truss bridge over Jefferson River on CR 170
History: Built 1914
Built: 1914
Location: Jefferson County
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272546
Photo taken by Jack Schmidt
272547
Photo taken by Jack Schmidt
272548
Photo taken by Jack Schmidt
272549
Photo taken by Jack Schmidt
Status: No longer exists
Location: 45.803572,-111.751766
Carries US 287 over Jefferson River
Design: truss/through
Design Details: Through truss
Total Length: 397.0 Feet
Span Length: 175.9 Feet
Overview: Lost two-span through truss bridge over Jefferson River on US 287
History: Built ca. 1930; replaced 2001
Built: ca. 1930
Location: Jefferson County
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Status: Bridge according to 2000 NBI used to carry US 287 over the Jefferson River until the new bridge replaced it in 2001. Perhaps it was relocated to its current location to be used in the future for some other purpose.
Location: 45.816798,-111.775681
Carries over
Design: truss/through/polygonal
Design Details: Polygonal Warren through truss
Total Length: 397.0 Feet
Span Length: 175.9 Feet
Overview: Polygonal Warren through truss bridge
History:
Built: 1930
Location: Jefferson County
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308419
View to the Northeast
Photo taken by Martha Carver in September 2014
308420
View to the Northeast
Photo taken by Martha Carver in September 2014
308421
View to the North
Photo taken by Martha Carver in September 2014
308422
View to the North
Photo taken by Martha Carver in September 2014
308423
View to the Northwest
Photo taken by Martha Carver in September 2014
Status: "Out Of Service"
Location: 45.950948,-112.315148
Carries Northern Pacific Railroad Homestake Pass over Big Pipestone Creek
Design: girder/deck/plate
Design Details: Deck plate girder
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Abandoned deck plate girder bridge over Big Pipestone Creek on Northern Pacific Railroad Homestake Pass
History: Built 1901-2
Built: 1902
Location: Jefferson County
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Status: "Out Of Service"
Location: 45.940922,-112.295975
Carries Northern Pacific Railroad Homestake Pass over Halfway Creek
Design: girder/deck/plate
Design Details: Deck plate girder
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Abandoned deck plate girder bridge over Halfway Creek on Northern Pacific Railroad Homestake Pass
History: Built 1901-2
Built:
Location: Jefferson County
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Status: Abandoned
Location: 45.801206,-112.299301
Carries Chicago, Milwaukee, St. Paul & Pacific Railroad over
Design: tunnel
Design Details: Tunnel
Total Length: 426.0 Feet
Span Length: 0.0 Feet
Overview: Abandoned tunnel on Chicago, Milwaukee, St. Paul & Pacific Railroad
History:
Built:
Location: Jefferson County
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486234
Photo taken by Sandy Goodrick; Used under Fair Use
Status: Removed, reportedly by a rancher
Location: 45.803241,-112.307578
Carries Chicago, Milwaukee, St. Paul & Pacific Railroad over Fish Creek Canyon
Design: girder/deck/plate
Design Details: Deck plate girder
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Deck plate girder bridge over Fish Creek Canyon on Chicago, Milwaukee, St. Paul & Pacific Railroad
History:
Built:
Location: Jefferson County
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Status: Open to dead end traffic
Location: 45.870798,-111.942894
Carries Old Highway 2 over Boulder River
Design: truss/pony/warren/verticals
Design Details: Warren pony truss with all verticals
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Warren pony truss with all verticals bridge over Boulder River on Old Highway 2
History:
Built:
Location: Jefferson County
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358656
Boulder River Bridge
East Portal
Photo taken by David Jones in July 2016
358657
Boulder River Bridge
View from the north
Photo taken by David Jones in July 2016
358658
Boulder River Bridge
View from the southwest
Photo taken by David Jones in July 2016
Status: Derelict/abandoned
Location: 46.270772,-112.234167
Carries Great Northern Railway over Boulder River
Design: girder/pony/plate
Design Details: Pony plate girder
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Abandoned bridge over Boulder River on abandoned Great Northern Railway
History: Nearby tunnel was built 1912, 1950 map shows this as the Great Northern Railway
Built:
Location: Jefferson County
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357447
Abandoned Boulder River RR Bridge
View from southeast
Photo taken by David Jones in June 2016
357448
Abandoned Boulder River RR Bridge
Northeast Portal
Photo taken by David Jones in June 2016
357449
Abandoned Boulder River RR Bridge
View from northwest
Photo taken by David Jones in June 2016
Status: Intact but closed to all traffic
Location: 46.260335,-112.336337
Carries Old Bear Gulch Road over Boulder River
Design: beam/tee
Design Details: Tee beam
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Tee Beam bridge over Boulder River on Old Bear Gulch Road
History:
Built:
Location: Jefferson County
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356704
Old Bear Gulch Road Bridge
View from the southeast
Photo taken by David Jones in June 2016
356705
Old Bear Gulch Road Bridge
Deterioration
Photo taken by David Jones in June 2016
356706
Old Bear Gulch Road Bridge
Deterioration
Photo taken by David Jones in June 2016
356707
Old Bear Gulch Road Bridge
Tee Beam
Photo taken by David Jones in June 2016
356708
Old Bear Gulch Road Bridge
South Portal
Photo taken by David Jones in June 2016
Status: Removed
Location: 45.828011,-112.380548
Carries Chicago, Milwaukee, St. Paul & Pacific Railroad over Little Pipestone Creek Tributary
Design: unknown
Design Details:
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Bridge over Little Pipestone Creek Tributary on Chicago, Milwaukee, St. Paul & Pacific Railroad
History:
Built:
Location: Jefferson County
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Status:
Location: 46.271182,-112.241951
Carries over
Design: unknown
Design Details:
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Bridge
History:
Built:
Location: Jefferson County
View Bridge Information In Wayback Machine
Status: Open to traffic
Location: 46.271119,-112.241925
Carries Frontage Road 099 over Cataract Creek 030
Design: beam/tee
Design Details: Concrete tee beam
Total Length: 79.7 Feet
Span Length: 26.9 Feet
Overview: Concrete tee beam bridge over Cataract Creek 030 on Frontage Road 099
History: Built 1933
Built: 1933
Location: Jefferson County
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357597
Frontage Road 099 Bridge Over Cataract Creek
View from the north
Photo taken by David Jones in June 2016
357598
Frontage Road 099 Bridge Over Cataract Creek
Photo taken by David Jones in June 2016
357599
Frontage Road 099 Bridge Over Cataract Creek
Photo taken by David Jones in June 2016
357600
Frontage Road 099 Bridge Over Cataract Creek
East Portal
Photo taken by David Jones in June 2016
Status: Derelict/abandoned
Location: 46.380835,-112.069081
Carries over Corbin Road/Trestle Road
Design: unknown
Design Details: Trestle
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Abandoned bridge over Corbin Road/Trestle Road
History:
Built:
Location: Jefferson County
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Status: Derelict/abandoned
Location: 46.380792,-112.069354
Carries Great Northern Railway over Corbin Road/Trestle Lane
Design: girder/deck/plate
Design Details: Deck plate girder trestle
Total Length: 700.0 Feet
Span Length: 0.0 Feet
Overview: Abandoned Deck plate girder trestle over Corbin Road/Trestle Lane on Great Northern Railway
History: Built 1902
Built: 1902
Location: Jefferson County
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357601
Corbin Railroad Trestle
Photo taken by David Jones in March 2015
357602
Corbin Railroad Trestle
View from the west
Photo taken by David Jones in March 2015
357603
Corbin Railroad Trestle
Concrete support pad
Photo taken by David Jones in March 2015
357604
Corbin Railroad Trestle
Photo taken by David Jones in March 2015
357605
Corbin Railroad Trestle
Photo taken by David Jones in March 2015
Status:
Location: 45.842598,-111.857617
Carries Tour road over Hiking trail
Design: arch/deck/stone
Design Details: Rock-faced concrete arch bridge.
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Stone Arch Bridge over hiking trail on Tour Road
History: Built 1936
Built: 1936
Location: Jefferson County
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358766
Lewis & Clark Caverns State Park Arch Bridge
West side
Photo taken by David Jones in July 2016
358767
Lewis & Clark Caverns State Park Arch Bridge
Stonework forming the arch
Photo taken by David Jones in July 2016
358768
Lewis & Clark Caverns State Park Arch Bridge
Stonework inside the arch
Photo taken by David Jones in July 2016
358769
Lewis & Clark Caverns State Park Arch Bridge
East side
Photo taken by David Jones in July 2016
358770
Lewis & Clark Caverns State Park Arch Bridge
North Portal
Photo taken by David Jones in July 2016
Status: Intact but closed to all traffic
Location: 45.750213,-112.174031
Carries Montana RailLink over Jefferson River
Design: truss/through/pratt
Design Details: Pratt through truss
Total Length: 298.0 Feet
Span Length: 155.0 Feet
Overview: Pratt Through truss bridge over Jefferson River on Montana RailLink
History: Relocated here 1949
Built: 1949
Location: Jefferson County
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Status:
Location: 45.880695,-112.184194
Carries over
Design: unknown
Design Details:
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Bridge
History:
Built:
Location: Jefferson County
View Bridge Information In Wayback Machine
Status: Open to traffic
Location: 45.880695,-112.184194
Carries MT 2/Old US 10 over Railroad
Design: beam/tee
Design Details: Tee beam
Total Length: 112.9 Feet
Span Length: 37.1 Feet
Overview: Tee beam bridge over railroad on MT 2/Old US 10
History:
Built: 1932
Location: Jefferson County
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435411
Old US Highway 2 Over Railroad
View from the west
Photo taken by David Jones in September 2018
435412
Old US Highway 2 Over Railroad
Northeastern abutment
Photo taken by David Jones in September 2018
435413
Old US Highway 2 Over Railroad
Northeastern Pier
Photo taken by David Jones in September 2018
435414
Old US Highway 2 Over Railroad
Southwestern Pier
Photo taken by David Jones in September 2018
435415
Old US Highway 2 Over Railroad
Guard Rail
Photo taken by David Jones in September 2018
435416
Old US Highway 2 Over Railroad
Southwestern Portal
Photo taken by David Jones in September 2018
435417
Old US Highway 2 Over Railroad
View from the west
Photo taken by David Jones in September 2018
Status: Replaced by a new bridge
Location: 45.803692,-111.751680
Carries US 287 over Jefferson River
Design: truss/through/polygonal/verticals
Design Details: Polygonal Warren through truss with all verticals
Total Length: 397.0 Feet
Span Length: 175.9 Feet
Overview: Relocated Polygonal Warren through truss bridge over Jefferson River on US 287
History: Built 1930; spans later relocated to different locations for reuse.
Built: 1930
Location: Jefferson County
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Status: Open to traffic
Location: 46.198921,-112.347184
Carries Boulder River Road over Mountain
Design: tunnel
Design Details: Tunnel
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Tunnel under Mountain on Boulder River Road
History: Built 1911; Abandoned 1972 and reused as a road
Built: 1911
Location: Jefferson County
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Status: Derelict/abandoned
Location: 46.267802,-112.219997
Carries Abandoned Burlington Northern Railroad over Mountain
Design: tunnel
Design Details: Tunnel
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Abandoned tunnel under Mountain on Abandoned Burlington Northern Railroad
History: Built 1912, Abandoned 1982
Built: 1912
Location: Jefferson County
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Status: Intact but closed to all traffic
Location: 46.321207,-112.107775
Carries Abandoned Burlington Northern Railroad over Hill
Design: tunnel
Design Details: Tunnel
Total Length: 6160.0 Feet
Span Length: 0.0 Feet
Overview: Tunnel under Hill on Abandoned Burlington Northern Railroad
History: Built 1888; Abandoned 1982
Built: 1888
Location: Jefferson County
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Status: Intact but closed to all traffic
Location: 45.911474,-112.350948
Carries BNSF Railway over Mountain
Design: tunnel
Design Details: Tunnel
Total Length: 135.0 Feet
Span Length: 135.0 Feet
Overview: Tunnel under Mountain on BNSF Railway
History:
Built:
Location: Jefferson 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.
