Status: Open to traffic
http://www.canyonhd4.org/highway-30-bridge.php
Location: 43.688859,-116.687448
Carries Plymouth St STC 7787 over Boise River
Design: truss/through/polygonal
Design Details: Three span polygonal Warren through truss with riveted connections.
5-slope Camelback format upper chord.
Total Length: 388.1 Feet
Span Length: 128.0 Feet
Overview: Camelback Warren through truss bridge over Boise River on STC 7787
History: Built 1922
Built: 1922
Location: Canyon County
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446624
Silver Bridge
Photo from Canyon Highway District 4
469482
Boise River and Canal Bridge
Photo taken by Tamanoeconomico
469483
Silver Bridge
Photo from the Old Highway 30 Bridge Project
Status: Open to traffic
Location: 43.622500,-116.871667
Carries Allendale Road over Low Line Canal
Design: beam/stringer/wood
Design Details: Timber stringer
Total Length: 24.0 Feet
Span Length: 23.0 Feet
Overview: Wooden bridge over Low Line Canal on Allendale Road
History: Built 1939; rehabilitated 1964
Built: 1939
Location: Canyon County
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Status: Open to traffic
Location: 43.675833,-116.674722
Carries Rose Garden Road over Notus Canal
Design: beam/stringer/wood
Design Details: Timber stringer
Total Length: 30.8 Feet
Span Length: 29.9 Feet
Overview: Wooden bridge over Notus Canal on Rose Garden Road in Caldwell
History: Built 1935
Built: 1935
Location: Canyon County
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Status: Closed to the public; Privately owned.
Location: 43.853935,-116.989203
Carries Private Drive over Snake River Channel
Design: truss/through/pratt
Design Details: Pin-connected Pratt through truss
Total Length: 160.0 Feet
Span Length: 160.0 Feet
Overview: Pratt through truss bridge over Snake River Channel on Private Drive
History: Built ca. 1890
Built: ca.1890
Location: Canyon County
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213477
Bridge Island Bridge (Private)
Photo taken by Michael Goff in September 2011
213478
Bridge Island Bridge (Private)
Photo taken by Michael Goff in September 2011
213479
Bridge Island Bridge (Private)
Deck view
Photo taken by Michael Goff in September 2011
213480
Bridge Island Bridge (Private)
Bottom chord pinned connection
Photo taken by Michael Goff in September 2011
213481
Bridge Island Bridge (Private)
Upper portal frame connection
Photo taken by Michael Goff in September 2011
213482
Bridge Island Bridge (Private)
Lower portal frame connection
Photo taken by Michael Goff in September 2011
213483
Bridge Island Bridge (Private)
Photo taken by Michael Goff in September 2011
213484
Bridge Island Bridge (Private)
Mid-span sway bracing connections
Photo taken by Michael Goff in September 2011
213485
Bridge Island Bridge (Private)
Lateral brace connection
Photo taken by Michael Goff in September 2011
213486
Bridge Island Bridge (Private)
Photo taken by Michael Goff in September 2011
Status: Open to traffic
Location: 43.851614,-116.995769
Carries Union Pacific Railroad over Snake River Channel
Design: truss/through/warren
Design Details: Warren through truss
Total Length: 660.0 Feet
Span Length: 110.0 Feet
Overview: Warren through truss bridge over Snake River Channel on Union Pacific Railroad
History:
Built: 1914
Location: Canyon County
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Status: Removed
Location: 43.694834,-116.684229
Carries Boise Valley Railroad over Boise River
Design: truss/through/whipple
Design Details: Whipple through truss
Total Length: 550.0 Feet
Span Length: 0.0 Feet
Overview: Lost Whipple through truss bridge over Boise River on Boise Valley Railroad
History: Built 1907; Removed ca. 1928
Built: 1907
Location: Canyon County
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353396
Public Domain: Published Prior to 1923
474137
BVT - Boise River Bridge
1905 view
Photo from Old historical photos and images of Boise, Idaho
Status: Replaced by a new bridge
Location: 43.688959,-116.686752
Carries Road over Boise River
Design: truss/through/pennsylvania
Design Details: Pennsylvania through truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Pennsylvania through truss bridge over Boise River on Road
History: Built 1894; Replaced 1922
Built: 1894
Location: Canyon County
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400187
Public Domain: Published Prior to 1923
Status: Replaced by a new bridge
Location: 43.697066,-116.611924
Carries ID 44 over Boise River
Design: truss/through/pennsylvania
Design Details: Pennsylvania through truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Pennsylvania through truss bridge over Boise River on ID 44
History: Built 1894; Replaced ?
Built: 1894
Location: Canyon County
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Status: Open to traffic
Location: 43.534686,-116.483250
Carries Union Pacific Railroad Company over New York Canal
Design: arch/deck/closed
Design Details: Closed-spandrel arch
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Closed-spandrel arch bridge over New York Canal on Union Pacific Railroad Company
History:
Built:
Location: Canyon County
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Status: Replaced by a new bridge
Location: 43.619208,-116.922619
Carries US95 over Snake River
Design: truss/through/parker
Design Details: Parker through truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Parker through truss bridge over Snake River on US95
History: Built 1921; Replaced 1969
Built: 1921
Location: Canyon County
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400317
Public Domain: Published Prior to 1923
Status: Replaced by a new bridge
Location: 43.547179,-116.799302
Carries ID 72 over Snake River
Design: truss/through/parker
Design Details: 5 175' Parker through trusses
Total Length: 875.0 Feet
Span Length: 175.0 Feet
Overview: Lost Parker through truss bridge over Snake River on ID 72
History: Built 1921; Replaced 1955
Built: 1921
Location: Canyon County
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400318
Public Domain: Published Prior to 1923
Status: Open to pedestrians only
Location: 43.667214,-116.689960
Carries pedestrian path over Indian Creek over Indian Creek
Design: truss/modern/through/bowstring
Design Details: Modern bowstring through truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Modern bowstring through truss bridge over Indian Creek on pedestrian path over Indian Creek
History: Built 2008
Built: 2008
Location: Canyon County
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432667
Photo taken by Leslie R trick in July 2018
432668
Photo taken by Leslie R trick in July 2018
Status: Open to traffic
Location: 43.667778,-116.691111
Carries Stc 7863;S.5th Avenue over Indian Creek
Design: slab
Design Details: Slab
Total Length: 37.1 Feet
Span Length: 18.0 Feet
Overview: Slab bridge over Indian Creek on Stc 7863;S.5th Avenue
History: Built 1935; rehabilitated 2009
Built: 1935
Location: Canyon County
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Status: Open to traffic
Location: 43.667778,-116.691111
Carries Stc 7863;S.5th Avenue over Indian Creek
Design: slab
Design Details: Slab
Total Length: 37.1 Feet
Span Length: 18.0 Feet
Overview: Slab bridge over Indian Creek on Stc 7863;S.5th Avenue
History: Built 1935; rehabilitated 2009
Built: 1935
Location: Canyon County
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432669
Photo taken by Leslie R trick in July 2018
Status: Replaced by a new bridge
Location: 43.677554,-116.702375
Carries Oregon Short Line over Boise River
Design: truss/through/pegram
Design Details: Pegram through truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Pegram through truss bridge over Boise River on Oregon Short Line
History: Replaced 1911
Built:
Location: Canyon County
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438713
Public Domain: Published Prior to 1923
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.
