Status: Replaced by a new bridge
Location: 44.070833,-115.945278
Carries Alder Creek Road over South Fork Payette River
Design: truss/through
Design Details: Through truss
Total Length: 192.9 Feet
Span Length: 120.1 Feet
Overview: Lost through truss bridge over South Fork Payette River on Alder Creek Road
History: Built 1924; rehabilitated 1956; replaced 2014
Built: 1924
Location: Boise County
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Status: Open to traffic
Location: 43.913333,-116.203333
Carries Boise Street over Payette River
Design: truss/pony/pratt-half
Design Details: Two-span, pin-connected, half-hip Pratt pony truss
Total Length: 184.1 Feet
Span Length: 90.9 Feet
Overview: Pony truss bridge over Payette River on Boise Street in Horseshoe Bend
History: Built 1908; rehabilitated 1993
Built: 1908
Location: Boise County
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Status: Open to traffic
Location: 44.113889,-115.970000
Carries Old Crouch Road over Middle Fork Payette River
Design: beam/stringer/wood
Design Details: Timber stringer
Total Length: 122.1 Feet
Span Length: 29.9 Feet
Overview: Wooden bridge over Middle Fork Payette River on Old Crouch Road
History: Built 1935; rehabilitated 1990
Built: 1935
Location: Boise County
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Status: Open to traffic
Location: 43.975278,-116.191944
Carries Brownlee Road over Payette River
Design: truss/pony/polygonal
Design Details: Polygonal Warren pony truss
Total Length: 292.0 Feet
Span Length: 96.1 Feet
Overview: 3 span pony truss bridge over Payette River on Brownlee Road
History: Built 1920; rehabilitated 1960
Built: 1920
Location: Boise County
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488727
Gardena Bridge
looking east
Photo taken by Arthur Carlson
Status: Open to traffic
Location: 43.785833,-115.966667
Carries Grimes Creek Road over Grimes Creek
Design: beam/stringer/wood
Design Details: Timber stringer
Total Length: 42.0 Feet
Span Length: 40.0 Feet
Overview: Wooden bridge over Grimes Creek on Grimes Creek Road
History: Built 1935; rehabilitated 1958
Built: 1935
Location: Boise County
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Status: Open to traffic
Location: 43.870564,-116.168871
Carries Shaffer Creek Road over Shafer Creek
Design: truss/pony
Design Details: Pony Truss
Total Length: 35.1 Feet
Span Length: 32.2 Feet
Overview: Pony truss bridge over Shafer Creek on Shaffer Creek Road
History: Built 1914
Built: 1914
Location: Boise County
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Status: Open to traffic
Location: 43.913198,-116.203401
Carries Idaho Northern and Pacific Railroad over Payette River
Design: truss/through/pratt
Design Details: Pratt through truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Pratt through truss bridge over Payette River on Idaho Northern and Pacific Railroad
History:
Built:
Location: Boise County
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Status: Intact but closed to all traffic
Location: 43.597339,-115.924570
Carries Old Arrowrock Dam Road over Arrowrock Dam Spillway
Design: truss/through/pratt
Design Details: Pratt through truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Through truss bridge over Arrowrock Dam Spillway on Old Arrowrock Dam Road
History: Built 1914; Installed 1915; Bypassed in function 2003
Built: 1914
Location: Boise County
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310011
Arrowrock Dam
ID-A-0095, WaterArchives.org
310012
Arrowrock Dam
Wikipedia
310013
ArrowrockDamandSpillway1915
Wikipedia
310014
Arrowrock Dam
ID-A-0269, WaterArchives.org
Status: Open to traffic
Location: 44.107624,-116.097342
Carries Idaho Northern & Pacific Railroad over North Fork Payette River
Design: truss/deck/warren
Design Details: Warren deck truss
Total Length: 448.0 Feet
Span Length: 338.0 Feet
Overview: Warren deck truss bridge over North Fork Payette River on Idaho Northern & Pacific Railroad
History: Built 1912
Built: 1912
Location: Boise County
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381155
Photo taken by Kyle Jarvis in April 2014
381156
Photo taken by Kyle Jarvis in April 2014
381153
Photo taken by Kyle Jarvis in April 2014
381154
Photo taken by Kyle Jarvis in April 2014
381151
Deck
Photo taken by Kyle Jarvis in April 2014
381152
Photo taken by Kyle Jarvis in April 2014
381149
Photo taken by Kyle Jarvis in April 2014
381150
Photo taken by Kyle Jarvis in April 2014
381148
Upstream side
Photo taken by Kyle Jarvis in April 2014
381147
North approach spans.
Photo taken by Kyle Jarvis in April 2014
375275
Photo taken by Chris Guenzler
Status: Open to traffic
Location: 43.904028,-116.201633
Carries ID 55 over Payette River
Design: beam/tee
Design Details: Concrete tee beam
Total Length: 363.9 Feet
Span Length: 50.9 Feet
Overview: Concrete tee beam bridge over Payette River on ID 55
History: Built 1934
Built: 1934
Location: Boise County
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Status: Open to traffic
Location: 43.912747,-115.406367
Carries Alexander Flat Road/Swanholm Road (FR 327) over North Fork Boise River
Design: beam/stringer/steel
Design Details: Steel stringer with timber deck
Total Length: 131.9 Feet
Span Length: 49.9 Feet
Overview: Steel stringer bridge over North Fork Boise River on Alexander Flat Road/Swanholm Road (FR 327)
History: Built 1947
Built: 1947
Location: Boise 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.
