Status: Open to traffic
Location: 40.963889,-123.840547
Carries Bair Road over Redwood Creek
Design: truss/pony/pratt
Design Details: Riveted Pratt Pony Truss
Total Length: 144.0 Feet
Span Length: 100.1 Feet
Overview: Pony truss bridge over Redwood Creek on Bair Road
History: Built 1950-1951; rehabilitated 1967
Built: 1950
Location: Humboldt County
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180483
Bair Road Bridge
Photo taken by Craig Philpott
180484
Bair Road Bridge
Photo taken by Craig Philpott
180485
Bair Road Bridge
Photo taken by Craig Philpott
180486
Bair Road Bridge
Date on South end of Bridge
Photo taken by Craig Philpott
180487
Bair Road Bridge
Photo taken by Craig Philpott
180488
Bair Road Bridge
Date on North end of Bridge
Photo taken by Craig Philpott
180489
Bair Road Bridge
Photo taken by Craig Philpott
180490
Bair Road Bridge
Photo taken by Craig Philpott
180491
Bair Road Bridge
Photo taken by Craig Philpott
Status: Open to traffic
Location: 41.207622,-123.756920
Carries Bald Hills Road over Klamath River
Design: truss/deck/warren
Design Details: Steel Deck truss
Total Length: 793.0 Feet
Span Length: 299.9 Feet
Overview: Deck truss bridge over Klamath River on Bald Hills Road
History: Built 1959; rehabilitated 1965, emergency repairs 2008.
Built: 1959
Location: Humboldt County
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180552
Bald Hills Road Bridge
Photo taken by Craig Philpott
180553
Bald Hills Road Bridge
North end showing a portion of the emergency repairs conducted in 2008.
Photo taken by Craig Philpott
180554
Bald Hills Road Bridge
Photo taken by Craig Philpott
180555
Bald Hills Road Bridge
North end showing a portion of the emergency repairs conducted in 2008.
Photo taken by Craig Philpott
180556
Bald Hills Road Bridge
North end showing a portion of the emergency repairs conducted in 2008.
Photo taken by Craig Philpott
180557
Bald Hills Road Bridge
North end showing a portion of the emergency repairs conducted in 2008.
Photo taken by Craig Philpott
180558
Bald Hills Road Bridge
North end showing a portion of the emergency repairs conducted in 2008.
Photo taken by Craig Philpott
180559
Bald Hills Road Bridge
North end showing a portion of the emergency repairs conducted in 2008.
Photo taken by Craig Philpott
180560
Bald Hills Road Bridge
North end showing a portion of the emergency repairs conducted in 2008.
Photo taken by Craig Philpott
180561
Bald Hills Road Bridge
North end showing a portion of the emergency repairs conducted in 2008.
Photo taken by Craig Philpott
180562
Bald Hills Road Bridge
Unknown through truss bridge in riverbed just downstream and West of current bridge.
Photo taken by Craig Philpott
180563
Bald Hills Road Bridge
Unknown through truss bridge in riverbed just downstream and West of current bridge.
Photo taken by Craig Philpott
180564
Bald Hills Road Bridge
Photo taken by Craig Philpott
180565
Bald Hills Road Bridge
Photo taken by Craig Philpott
180566
Bald Hills Road Bridge
Photo taken by Craig Philpott
324696
Martins Ferry Bridge
Bird's eye view of Martins Ferry Bridge and buildings beyond
Photo submitted by Craig Philpott
Status: Open to traffic
Location: 40.725000,-124.176944
Carries Bertas Road over Elk River
Design: truss/pony/howe
Design Details: Covered Howe pony truss
Total Length: 52.0 Feet
Span Length: 51.8 Feet
Overview: Covered bridge over Elk River on Bertas Road in Pine Hills
History: Built 1936; rehabilitated 1972
Built: 1936
Location: Humboldt County
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121845
Berta Road Bridge
Photo taken by Walt Frazer in May 2008
509900
West Approach
Photo taken by Mike Garland in July 2018
509901
West Approach
Photo taken by Mike Garland in July 2018
509902
West Portal
Photo taken by Mike Garland in July 2018
509903
Photo taken by Mike Garland in July 2018
509904
Photo taken by Mike Garland in July 2018
509905
Photo taken by Mike Garland in July 2018
509906
Photo taken by Mike Garland in July 2018
509907
Photo taken by Mike Garland in July 2018
509908
Photo taken by Mike Garland in July 2018
509909
Photo taken by Mike Garland in July 2018
509910
Photo taken by Mike Garland in July 2018
509911
Photo taken by Mike Garland in July 2018
509912
Photo taken by Mike Garland in July 2018
509913
East Approach
Photo taken by Mike Garland in July 2018
509914
Photo taken by Mike Garland in July 2018
509915
Photo taken by Mike Garland in July 2018
509916
Photo taken by Mike Garland in July 2018
509917
Photo taken by Mike Garland in July 2018
509918
Photo taken by Mike Garland in July 2018
509919
Photo taken by Mike Garland in July 2018
509920
Photo taken by Mike Garland in July 2018
509921
Photo taken by Mike Garland in July 2018
509922
Photo taken by Mike Garland in July 2018
Status: Open to traffic
Location: 41.240915,-123.655021
Carries CA 96 over Bluff Creek
Design: arch/deck/steel
Design Details: Steel arch
Total Length: 400.9 Feet
Span Length: 273.0 Feet
Overview: Steel arch bridge over Bluff Creek on CA 96
History: Built 1966
Built: 1966
Location: Humboldt County
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180612
Bluff Creek Bridge
Photo taken by Craig Philpott
180613
Bluff Creek Bridge
Photo taken by Craig Philpott
180614
Bluff Creek Bridge
Photo taken by Craig Philpott
180615
Bluff Creek Bridge
Photo taken by Craig Philpott
180616
Bluff Creek Bridge
Photo taken by Craig Philpott
180617
Bluff Creek Bridge
Photo taken by Craig Philpott
180618
Bluff Creek Bridge
Photo taken by Craig Philpott
180619
Bluff Creek Bridge
Photo taken by Craig Philpott
180620
Bluff Creek Bridge
Photo taken by Craig Philpott
180621
Bluff Creek Bridge
Photo taken by Craig Philpott
180622
Bluff Creek Bridge
Photo taken by Craig Philpott
180623
Bluff Creek Bridge
Photo taken by Craig Philpott
180624
Bluff Creek Bridge
Photo taken by Craig Philpott
180625
Bluff Creek Bridge
Photo taken by Craig Philpott
180626
Bluff Creek Bridge
Photo taken by Craig Philpott
180627
Bluff Creek Bridge
Photo taken by Craig Philpott
180628
Bluff Creek Bridge
Photo taken by Craig Philpott
372815
Bluff Creek Bridge
Side elevation from the west.
Photo taken by Mike Goff in September 2016
422436
Bluff Creek Bridge
Photo taken by Richard Doody in September 2013
422437
Bluff Creek Bridge
Photo taken by Richard Doody in September 2013
Status: Open to traffic
Location: 40.122404,-123.841394
Carries Briceland Road over Redwood Creek
Design: beam/stringer/concrete
Design Details: Concrete beam design with minimal arch element in design
Total Length: 74.2 Feet
Span Length: 69.9 Feet
Overview: Concrete bridge over Redwood Creek on Briceland Road
History: Built 1935
Built: 1935
Location: Humboldt County
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150673
Briceland Road Bridge
Looking East
Photo taken by Craig Philpott in December 2009
150674
Briceland Road Bridge
Looking South, almost impossible to get a good angle in the deep dark redwood grove.
Photo taken by Craig Philpott in December 2009
Status: Open to traffic
Location: 40.831944,-124.045000
Carries Brookwood Drive over Jacoby Creek
Design: truss/through/howe
Design Details: Covered Howe through truss
Total Length: 66.0 Feet
Span Length: 60.0 Feet
Overview: Covered bridge over Jacoby Creek on Brookwood Drive in Arcata
History: Built 1967
Built: 1967
Location: Humboldt County
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121846
Brookwood Bridge
Photo taken by Walt Frazer in May 2008
121847
Brookwood Bridge
Photo taken by Walt Frazer in May 2008
422755
Brookwood Covered Bridge
Photo taken by Richard Doody in April 1992
422756
Brookwood Covered Bridge
Photo taken by Richard Doody in April 1992
509846
The bridge was fumigated in 2018 due to ongoing wood-boring beetle damage.
Photo taken by Mike Garland in July 2018
509847
The bridge was fumigated in 2018 due to ongoing wood-boring beetle damage.
Photo taken by Mike Garland in July 2018
509848
The bridge was fumigated in 2018 due to ongoing wood-boring beetle damage.
Photo taken by Mike Garland in July 2018
509849
The bridge was fumigated in 2018 due to ongoing wood-boring beetle damage.
Photo taken by Mike Garland in July 2018
509850
The bridge was fumigated in 2018 due to ongoing wood-boring beetle damage.
Photo taken by Mike Garland in July 2018
509851
The bridge was fumigated in 2018 due to ongoing wood-boring beetle damage.
Photo taken by Mike Garland in July 2018
509852
The bridge was fumigated in 2018 due to ongoing wood-boring beetle damage.
Photo taken by Mike Garland in July 2018
509853
The bridge was fumigated in 2018 due to ongoing wood-boring beetle damage.
Photo taken by Mike Garland in July 2018
Status: Open to traffic
Location: 40.764772,-123.888889
Carries Butler Valley Road over Mad River
Design: arch/deck/open
Design Details: Open-spandrel concrete arch
Total Length: 203.1 Feet
Span Length: 132.9 Feet
Overview: Concrete arch bridge over Mad River on Butler Valley Road
History: Built 1937; rehabilitated 1965
Built: 1937
Location: Humboldt County
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121848
Butler Valley Road Bridge
Photo taken by Walt Frazer in June 2008
121849
Butler Valley Road Bridge
Photo taken by Walt Frazer in June 2008
180455
Butler Valley Road Bridge Mad River
Photo taken by Craig Philpott
180456
Butler Valley Road Bridge Mad River
Photo taken by Craig Philpott
180457
Butler Valley Road Bridge Mad River
Photo taken by Craig Philpott
180458
Butler Valley Road Bridge Mad River
Photo taken by Craig Philpott
180459
Butler Valley Road Bridge Mad River
Photo taken by Craig Philpott
180460
Butler Valley Road Bridge Mad River
Photo taken by Craig Philpott
180461
Butler Valley Road Bridge Mad River
Photo taken by Craig Philpott
180462
Butler Valley Road Bridge Mad River
Photo taken by Craig Philpott
180463
Butler Valley Road Bridge Mad River
Photo taken by Craig Philpott
180464
Butler Valley Road Bridge Mad River
Photo taken by Craig Philpott
180465
Butler Valley Road Bridge Mad River
Photo taken by Craig Philpott
180466
Butler Valley Road Bridge Mad River
Photo taken by Craig Philpott
Status: Open to traffic
Location: 40.764474,-123.888379
Carries Butler Valley Road over Maple Creek
Design: arch/deck/open
Design Details: Concrete open spandrel deck arch.
Total Length: 82.0 Feet
Span Length: 60.0 Feet
Overview: Concrete arch bridge over Maple Creek on Butler Valley Road
History: Built 1929
Built: 1929
Location: Humboldt County
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180476
Maple Creek Butler Valley Rd.
Photo taken by Craig Philpott
180477
Maple Creek Butler Valley Rd.
Photo taken by Craig Philpott
180478
Maple Creek Butler Valley Rd.
Photo taken by Craig Philpott
180479
Maple Creek Butler Valley Rd.
Photo taken by Craig Philpott
180480
Maple Creek Butler Valley Rd.
Photo taken by Craig Philpott
180481
Maple Creek Butler Valley Rd.
Photo taken by Craig Philpott
180482
Maple Creek Butler Valley Rd.
Photo taken by Craig Philpott
Status: Open to traffic
Location: 40.911640,-123.812596
Carries Chezem Road over Redwood Creek
Design: truss/through/pratt
Design Details: Pratt through truss
Total Length: 124.0 Feet
Span Length: 120.1 Feet
Overview: Through truss bridge over Redwood Creek on Chezem Road in Willow Creek
History: Built 1916; rehabilitated 1947
Built: 1916
Location: Humboldt County
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101315
Overview
Photo taken Nov. 2006 by Karen Larkin
Status: Open to traffic
Location: 40.491487,-124.100397
Carries CA 283 over Eel River & NWP Railroad
Design: truss/through
Design Details: Through truss
Total Length: 1195.9 Feet
Span Length: 321.9 Feet
Overview: Cantilevered through truss bridge over Eel River & NWP Railroad on CA 283 in Rio Dell
History: Built 1941
Built: 1941
Location: Humboldt County
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121840
Eel River Bridge, south end of Rio Dell
Photo taken by Walt Frazer in May 2008
150675
Eel River Bridge South of Rio Dell
Looking SW
Photo taken by Craig Philpott in December 2009
150676
Eel River Bridge South of Rio Dell
Looking SW
Photo taken by Craig Philpott in December 2009
200947
Scotia Eel River bridge
Undated photo source: California Highways, A descriptive record of road development by the state and such counties as have paved highways. Ben Blow, 1920 (Google Books)
Photo submitted by Craig Philpott
200948
Scotia Eel River Bridge
Undated photo source: California Highways, A descriptive record of road development by the state and such counties as have paved highways. Ben Blow, 1920 (Google Books)
Photo submitted by Craig Philpott
Status: Open to traffic
Location: 40.509674,-124.120007
Carries US 101 over Eel River
Design: truss/through/pratt
Design Details: K type Pratt Through truss
Total Length: 1643.1 Feet
Span Length: 304.1 Feet
Overview: Through truss bridge over Eel River on US 101 in Rio Dell
History: Built 1941; rehabilitated 1989
Built: 1941
Location: Humboldt County
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150677
Eel River Bridge N of Rio Dell
Looking South
Photo taken by Craig Philpott in December 2009
150678
Eel River Bridge N of Rio Dell
Looking South
Photo taken by Craig Philpott in December 2009
164921
Driving North
Photo taken by Craig Philpott in May 2010
164922
Driving North
Photo taken by Craig Philpott in May 2010
164923
Driving North
Photo taken by Craig Philpott in May 2010
203102
Eel River Bridge
Source: California Highways, A descriptive record of road development by the state and by such counties as have paved highways. By Ben Blow, 1920, Google Books
Photo submitted by Craig Philpott
203103
Eel River Bridge
Source: California Highways, A descriptive record of road development by the state and by such counties as have paved highways. By Ben Blow, 1920, Google Books
Photo submitted by Craig Philpott
Status: Open to traffic
Location: 40.613333,-124.201667
Carries CA 211 over Eel River
Design: arch/deck/closed
Design Details: Closed-spandrel arch
Total Length: 2408.3 Feet
Span Length: 194.9 Feet
Overview: Concrete arch bridge over Eel River on CA 211
History: Built 1911; rehabilitated 1918
Built: 1911
Location: Humboldt County
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121850
Fernbridge
Photo taken by Walt Frazer in May 2008
150679
Eel River, Ferndale Bridge
Looking SE from West side of river.
Photo taken by Craig Philpott in December 2009
150680
Eel River, Ferndale Bridge
Looking NE from West side of river.
Photo taken by Craig Philpott in December 2009
150681
Eel River, Ferndale Bridge
Detail, looking SE, near West end of bridge.
Photo taken by Craig Philpott in December 2009
225834
Fern Bridge
California Historic Civil Engineering Landmark plaque
Photo taken by Mike Lynch
232903
Fern Bridge
Fern Bridge
Photo taken by Scott Roberts in May 2012
232904
Fern Bridge Sign
Fern Bridge Sign
Photo taken by Scott Roberts in May 2012
257093
Fern Eel River Bridge historic postcard
Historical postcard view of the bridge. The wording on the card reads, "Eel River Bridge - Largest Concrete Bridge in the World - Completed Nov, 1911 - Humboldt Co. Calif."
Photo taken by Mike Lynch
257095
Fernbridge on Eel River historic pic
Fernbridge on Eel River historic pic
Photo uploaded by Mike Lynch
257097
Fern bridge Eel River historic pics.
Fernbridge on Eel River historic pic
Photo uploaded by Mike Lynch
257098
Fernbridge on Eel River panoramic historic photo
Historic panoramic view of Fernbridge, known at the time as the Eel River Bridge.
Photo uploaded by Mike Lynch in June 2013
257099
Fernbridge on Eel River panoramic historic photo
Flooding on Eel River at Fernbridge
Photo uploaded by Mike Lynch in June 2013
429691
Fern Bridge
Roadway view facing west towards Ferndale.
Photo taken by Mike Goff in June 2018
429692
Fern Bridge
West approach trestle details.
Photo taken by Mike Goff in June 2018
429693
Fern Bridge
West approach trestle details
Photo taken by Mike Goff in June 2018
429694
Fern Bridge
From the southwest.
Photo taken by Mike Goff in June 2018
429695
Fern Bridge
From the southwest.
Photo taken by Mike Goff in June 2018
488257
ca. 1912 Postcard View.
509923
Looking North
View from Sub Station Road.
Photo taken by Mike Garland in July 2018
509924
Looking North
View from Sub Station Road.
Photo taken by Mike Garland in July 2018
509925
Looking North
View from Sub Station Road.
Photo taken by Mike Garland in July 2018
509926
Looking North
View from Sub Station Road.
Photo taken by Mike Garland in July 2018
509927
Looking North
Photo taken by Mike Garland in July 2018
509928
Looking North
Photo taken by Mike Garland in July 2018
509929
Photo taken by Mike Garland in July 2018
509930
South Abutment
Photo taken by Mike Garland in July 2018
509931
Looking North
Photo taken by Mike Garland in July 2018
509932
Photo taken by Mike Garland in July 2018
509933
South Approach Trestles
Photo taken by Mike Garland in July 2018
509934
South Approach Trestles
Photo taken by Mike Garland in July 2018
509935
Looking Northeast
Photo taken by Mike Garland in July 2018
509936
Looking East
Photo taken by Mike Garland in July 2018
509937
Looking Northeast
Photo taken by Mike Garland in July 2018
509938
Photo taken by Mike Garland in July 2018
509939
Photo taken by Mike Garland in July 2018
509940
Photo taken by Mike Garland in July 2018
509941
Photo taken by Mike Garland in July 2018
509942
Photo taken by Mike Garland in July 2018
509943
Photo taken by Mike Garland in July 2018
509944
Photo taken by Mike Garland in July 2018
509945
Photo taken by Mike Garland in July 2018
509946
Photo taken by Mike Garland in July 2018
509947
Photo taken by Mike Garland in July 2018
509948
Photo taken by Mike Garland in July 2018
509949
South Approach
Photo taken by Mike Garland in July 2018
509950
South Approach
Photo taken by Mike Garland in July 2018
509951
South Approach Trestles
Photo taken by Mike Garland in July 2018
509952
Looking Northwest
Photo taken by Mike Garland in July 2018
509953
Photo taken by Mike Garland in July 2018
509954
Looking West
Photo taken by Mike Garland in July 2018
509955
Looking West
Photo taken by Mike Garland in July 2018
Status: Open to traffic
Location: 40.139444,-123.991389
Carries Etsbrg Hnydew Road over Mattole River
Design: arch/deck
Design Details: Arch
Total Length: 103.0 Feet
Span Length: 95.1 Feet
Overview: Concrete arch bridge over Mattole River on Etsbrg Hnydew Road
History: Built 1928
Built: 1928
Location: Humboldt County
View Bridge Information In Wayback Machine
Status: Open to traffic
Location: 40.805000,-124.138333
Carries US 101 over Eureka Slough
Design: truss/pony/pratt
Design Details: Pratt Pony truss supporting concrete beams and deck
Total Length: 883.9 Feet
Span Length: 102.0 Feet
Overview: Pratt pony truss bridge over Eureka Slough on US 101 in Eureka
History: Built 1943; rehabilitated 2001
Built: 1943
Location: Humboldt County
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152913
Eureka Slough Bridge
from the southwest
Photo taken by Michael Goff on January 17, 2010
152914
Eureka Slough Bridge
from the west
Photo taken by Michael Goff on January 17, 2010
152915
North Approach Spans
Photo taken by Michael Goff on January 17, 2010
152916
Eureka Slough Bridges
from the south
Photo taken by Michael Goff on January 17, 2010
152917
Rail Detail - Exterior
Photo taken by Michael Goff on January 17, 2010
164924
Eureka Slough Bridge
Photo taken by Craig Philpott in May 2010
164925
Eureka Slough Bridge
Photo taken by Craig Philpott in May 2010
Status: Open to traffic
Location: 40.217778,-123.632778
Carries Fort Seward Road over Eel River
Design: truss/deck/warren
Design Details: Steel Warren deck truss
Total Length: 624.0 Feet
Span Length: 211.0 Feet
Overview: Deck truss bridge over Eel River on Fort Seward Road
History: Built 1958
Built: 1958
Location: Humboldt County
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156629
Fort Seward Bridge
Looking NE
Photo taken by Craig Philpott in February 2010
156630
Fort Seward Bridge
Looking East
Photo taken by Craig Philpott in February 2010
156631
Fort Seward Bridge
Looking NE
Photo taken by Craig Philpott in February 2010
156632
Fort Seward Bridge
Looking NE
Photo taken by Craig Philpott in February 2010
Status: Open to traffic
Slated for demolition and replacement.
Location: 40.243889,-124.122778
Carries Mattole Road over Mattole River
Design: truss/through/camelback
Design Details: Two riveted Camelback Pratt through trusses
Total Length: 386.2 Feet
Span Length: 190.0 Feet
Overview: Through truss bridge over Mattole River on Mattole Road
History: Built 1920
Built: 1920
Location: Humboldt County
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121841
Honeydew Bridge
Photo taken by Walt Frazer in June 2008
121857
Honeydew Bridge
Photo taken by Walt Frazer in June 2008
152788
Honeydew Bridge
Looking West
Photo taken by Craig Philpott in January 2010
Status: Open to traffic
Location: 41.185743,-123.704835
Carries CA 96 over Klamath River
Design: truss/deck
Design Details: Deck truss
Total Length: 540.4 Feet
Span Length: 294.0 Feet
Overview: Deck truss bridge over Klamath River on CA 96
History: Built 1949
Built: 1949
Location: Humboldt County
View Bridge Information In Wayback Machine
180500
Klamath River Bridge
Photo taken by Craig Philpott
180501
Klamath River Bridge
Photo taken by Craig Philpott
180502
Klamath River Bridge
Photo taken by Craig Philpott
180503
Klamath River Bridge
Photo taken by Craig Philpott
180504
Klamath River Bridge
Photo taken by Craig Philpott
180505
Klamath River Bridge
Photo taken by Craig Philpott
180506
Klamath River Bridge
Photo taken by Craig Philpott
180507
Klamath River Bridge
Photo taken by Craig Philpott
180508
Klamath River Bridge
Photo taken by Craig Philpott
180509
Klamath River Bridge
Photo taken by Craig Philpott
180510
Klamath River Bridge
Photo taken by Craig Philpott
180511
Klamath River Bridge
Photo taken by Craig Philpott
180512
Klamath River Bridge
Photo taken by Craig Philpott
Status: Open to traffic
Location: 40.250833,-124.165833
Carries Lindley Road over Mattole River
Design: suspension/wire
Design Details: Wire suspension
Total Length: 232.0 Feet
Span Length: 230.0 Feet
Overview: Suspension bridge over Mattole River on Lindley Road
History: Built 1925
Built: 1925
Location: Humboldt County
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152789
Lindley Road Bridge
Looking West
Photo taken by Craig Philpott in January 2010
152790
Lindley Road Bridge
Looking West
Photo taken by Craig Philpott in January 2010
152791
Lindley Road Bridge
Looking North
Photo taken by Craig Philpott in January 2010
152792
Lindley Road Bridge
Looking East
Photo taken by Craig Philpott in January 2010
375313
South cable anchors
Photo taken by Jann Mayer in December 2016
375312
Looking north, detail of cable attachments
Photo taken by Jann Mayer in December 2016
375311
Base of south tower
Photo taken by Jann Mayer in December 2016
375310
South tower
Photo taken by Jann Mayer in December 2016
375309
Looking south
Photo taken by Jann Mayer in December 2016
375308
North tower
Photo taken by Jann Mayer in December 2016
375307
Cable anchors on north end
Photo taken by Jann Mayer in December 2016
375306
Detail of suspension cable attachment
Photo taken by Jann Mayer in December 2016
375305
Looking north
Photo taken by Jann Mayer in December 2016
375304
Looking north across the bridge
Photo taken by Jann Mayer in December 2016
375303
South tower
Photo taken by Jann Mayer in December 2016
375302
South tower
Photo taken by Jann Mayer in December 2016
Status:
Location: 40.916667,-124.092778
Carries US 101 over Mad River
Design: truss/through/warren/verticals
Design Details: Subdivided Warren Through truss, riveted connections.
Total Length: 740.2 Feet
Span Length: 149.9 Feet
Overview: Lost Warren through truss bridge over Mad River on US 101 in McKinleyville
History: Built 1929; rehabilitated 1959; Replaced & demolished 2011
Built: 1929
Location: Humboldt County
View Bridge Information In Wayback Machine
170788
Mad River Bridge
Detail, looking East
Photo taken by Craig Philpott in July 2010
170789
Mad River Bridge
Detail, looking East
Photo taken by Craig Philpott in July 2010
170790
Mad River Bridge
Detail, looking East
Photo taken by Craig Philpott in July 2010
170791
Mad River Bridge
Detail, looking East
Photo taken by Craig Philpott in July 2010
170792
Mad River Bridge
Detail, looking East
Photo taken by Craig Philpott in July 2010
170793
Mad River Bridge
Looking North
Photo taken by Craig Philpott in July 2010
170794
Mad River Bridge
Looking North
Photo taken by Craig Philpott in July 2010
170795
Mad River Bridge
Looking North
Photo taken by Craig Philpott in July 2010
170796
Mad River Bridge
Looking North
Photo taken by Craig Philpott in July 2010
170797
Mad River Bridge
Looking North
Photo taken by Craig Philpott in July 2010
170798
Mad River Bridge
Looking North
Photo taken by Craig Philpott in July 2010
Status: Open to traffic
Location: 40.870276,-123.961322
Carries Maple Creek Road over North Fork Mad River
Design: arch/through/concrete
Design Details: Concrete through arch
Total Length: 429.2 Feet
Span Length: 144.0 Feet
Overview: Rainbow arch bridge over North Fork Mad River on Maple Creek Road
History: Built 1928
Built: 1928
Location: Humboldt County
View Bridge Information In Wayback Machine
121851
Korbel Bridge
Photo taken by Walt Frazer in June 2008
121852
Korbel Bridge
Photo taken by Walt Frazer in June 2008
180436
Blue Lake Bridge
Photo taken by Craig Philpott
180437
Blue Lake Bridge
Photo taken by Craig Philpott
180438
Blue Lake Bridge
Photo taken by Craig Philpott
180439
Blue Lake Bridge
Photo taken by Craig Philpott
180440
Blue Lake Bridge
Photo taken by Craig Philpott
180441
Blue Lake Bridge
Photo taken by Craig Philpott
180442
Blue Lake Bridge
Photo taken by Craig Philpott
180443
Blue Lake Bridge
Photo taken by Craig Philpott
180444
Blue Lake Bridge
Photo taken by Craig Philpott
180445
Blue Lake Bridge
Photo taken by Craig Philpott
Status: Open to traffic
Location: 40.760833,-123.872778
Carries Maple Creek Road over Boulder Creek
Design: arch/deck
Design Details: Concrete deck arch
Total Length: 92.9 Feet
Span Length: 60.0 Feet
Overview: Concrete arch bridge over Boulder Creek on Maple Creek Road
History: Built 1923
Built: 1923
Location: Humboldt County
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226564
Maple Creek Road
Photo taken by Craig Philpott
226565
Maple Creek Road
Photo taken by Craig Philpott
226566
Maple Creek Road
Photo taken by Craig Philpott
226567
Maple Creek Road
Photo taken by Craig Philpott
226568
Maple Creek Road
Photo taken by Craig Philpott
226569
Maple Creek Road
Photo taken by Craig Philpott
226570
Maple Creek Road
Photo taken by Craig Philpott
226571
Maple Creek Road
Photo taken by Craig Philpott
226572
Maple Creek Road
Photo taken by Craig Philpott
Status: Open to traffic
Location: 40.313889,-124.282778
Carries Mattole Road over Mattole River
Design: truss/deck/warren
Design Details: Warren deck truss
Total Length: 380.6 Feet
Span Length: 100.1 Feet
Overview: Deck truss bridge over Mattole River on Mattole Road
History: Built 1958
Built: 1958
Location: Humboldt County
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121843
Mattole Road Bridge
Photo taken by Walt Frazer in June 2008
121844
Mattole Road Bridge
Photo taken by Walt Frazer in June 2008
Status: Open to traffic
Location: 40.270000,-124.225833
Carries Mattole Road over Mattole River
Design: arch/deck/closed
Design Details:
Closed-spandrel concrete arch
Total Length: 166.0 Feet
Span Length: 149.9 Feet
Overview: Concrete arch bridge over Mattole River on Mattole Road
History: Built 1935
Built: 1935
Location: Humboldt County
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121842
Mattole Road Bridge
Photo taken by Walt Frazer in June 2008
179562
Mattole Road Bridge
Photo taken by Craig Philpott
179563
Mattole Road Bridge
Photo taken by Craig Philpott
179564
Mattole Road Bridge
Photo taken by Craig Philpott
375316
Looking east
Photo taken by Jann Mayer in December 2016
375315
Looking east
Photo taken by Jann Mayer in December 2016
375314
Looking west
Photo taken by Jann Mayer in December 2016
Status: Open to traffic
Location: 40.352778,-124.332778
Carries Old Mattole Road over McNutt Creek
Design: truss/half/pratt
Design Details: Pratt half-through pony truss
Total Length: 84.0 Feet
Span Length: 84.0 Feet
Overview: Pratt half-through truss bridge over McNutt Creek on Old Mattole Road
History: Built 1926
Built: 1926
Location: Humboldt County
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121855
Old Mattole Roat Bridge
Photo taken by Walt Frazer in June 2008
121856
Old Mattole Road Bridge
Photo taken by Walt Frazer in June 2008
454185
Photo taken by Daniel in August 2019
454186
Photo taken by Daniel in August 2019
Status: Open to traffic
Location: 41.303214,-123.533784
Carries CA 96 over Klamath River
Design: suspension/wire
Design Details: Wire suspension bridge with concrete tower structures.
Total Length: 770.1 Feet
Span Length: 428.2 Feet
Overview: Suspension bridge over Klamath River on CA 96
History: Built 1966
Built: 1966
Location: Humboldt County
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180585
Orleans Bridge Klamath River
Photo taken by Craig Philpott
180586
Orleans Bridge Klamath River
Photo taken by Craig Philpott
180587
Orleans Bridge Klamath River
Photo taken by Craig Philpott
180588
Orleans Bridge Klamath River
Photo taken by Craig Philpott
180589
Orleans Bridge Klamath River
Photo taken by Craig Philpott
180590
Orleans Bridge Klamath River
Photo taken by Craig Philpott
180591
Orleans Bridge Klamath River
Photo taken by Craig Philpott
180592
Orleans Bridge Klamath River
Photo taken by Craig Philpott
180593
Orleans Bridge Klamath River
Photo taken by Craig Philpott
180594
Orleans Bridge Klamath River
Photo taken by Craig Philpott
180595
Orleans Bridge Klamath River
Photo taken by Craig Philpott
180596
Orleans Bridge Klamath River
Photo taken by Craig Philpott
180597
Orleans Bridge Klamath River
Photo taken by Craig Philpott
180598
Orleans Bridge Klamath River
Photo taken by Craig Philpott
180599
Orleans Bridge Klamath River
Photo taken by Craig Philpott
180600
Orleans Bridge Klamath River
Photo taken by Craig Philpott
180601
Orleans Bridge Klamath River
Photo taken by Craig Philpott
184138
Orleans Bridge Klamath
Undated historical postcard
Submitted by Craig Philpott
219325
Klamath River at Orleans, Calif
University of California, Davis. General Library. Dept. of Special Collections.
1956
219326
Klamath River at Orleans, Calif.
University of California, Davis. General Library. Dept. of Special Collections.
1956
324664
Orleans bridge
Arcata Union, & Palmquist, P. E. [Bridge under construction over Klamath, at Orleans].Yale Collection of Western Americana, Beinecke Rare Book and Manuscript Library
Photo sumbitted Craig Philpott
422431
Orleans Suspension Bridge
Photo taken by Richard Doody in September 2013
422432
Orleans Suspension Bridge
Photo taken by Richard Doody in September 2013
422433
Orleans Suspension Bridge
Photo taken by Richard Doody in September 2013
422434
Orleans Suspension Bridge
Photo taken by Richard Doody in September 2013
422435
Orleans Suspension Bridge
Photo taken by Richard Doody in September 2013
Status: Replaced by new bridge
Location: 40.107108,-123.795962
Carries Redwood Drive over Bear Gulch
Design: arch/deck
Design Details: Arch
Total Length: 247.1 Feet
Span Length: 0.0 Feet
Overview: Concrete arch bridge over Bear Gulch on Redwood Drive
History: Built 1921, replaced 2004
Built: 1921
Location: Humboldt County
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180629
Redwood Drive Garberville
Looking North
Photo taken by Craig Philpott
511158
Redwood Drive Bridge
This may be the Bear Canyon bridge.
Photo from old postcard
Status: Replaced by a reinforced concrete box girder bridge in 1984
Location: 40.476070,-123.962248
Carries CA 36 over Van Duzen River
Design: arch/deck/open
Design Details: Open-spandrel arch
Total Length: 464.0 Feet
Span Length: 207.5 Feet
Overview: Lost concrete arch bridge over Van Duzen River on CA 36
History: Built 1922
Built: 1922
Location: Humboldt County
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133641
Pete Asano, Photographer September 1981 View North Of Upstream Side
Photo taken by Historic American Engineering Record
133642
Pete Asano, Photographer September 1981 View Southwest Of Downstream Side
Photo taken by Historic American Engineering Record
133643
Pete Asano, Photographer September 1981 View To North. Detail Of Upstream Side Showing Center Pier And Arches To Crowns
Photo taken by Historic American Engineering Record
133644
Pete Asano, Photographer September 1981 View To North. Detail Of Upstream Side Of Center Pier
Photo taken by Historic American Engineering Record
133645
Pete Asano, Photographer September 1981 View To West Along Upstream Side
Photo taken by Historic American Engineering Record
133646
Pete Asano, Photographer September 1981 View To West Along Underside Of Bridge From East Abutment
Photo taken by Historic American Engineering Record
133647
Pete Asano Photographer September 1981 View East Along Deck
Photo taken by Historic American Engineering Record
133648
Pete Asano, Photographer September 1981 View West Along Deck
Photo taken by Historic American Engineering Record
133649
Pete Asano, Photographer September 1981 View To North. Detail Of Deck, Expansion Joint, And North Rail
Photo taken by Historic American Engineering Record
Status: Open to traffic
Location: 40.717778,-124.168889
Carries Zanes Road over Elk River
Design: truss/pony/howe
Design Details: Covered Howe pony truss
Total Length: 52.0 Feet
Span Length: 51.8 Feet
Overview: Covered bridge over Elk River on Zanes Road in Pine Hills
History: Built 1936
Built: 1936
Location: Humboldt County
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121853
Zane Road Bridge
Photo taken by Walt Frazer in May 2008
121854
Zane Road Bridge
Photo taken by Walt Frazer in May 2008
422757
Zane's Ranch Bridge
Photo taken by Richard Doody in April 1992
422758
Zane's Ranch Bridge
Photo taken by Richard Doody in April 1992
509873
East Approach
Photo taken by Mike Garland in July 2018
509874
East Approach
Photo taken by Mike Garland in July 2018
509875
East Approach
Photo taken by Mike Garland in July 2018
509876
Photo taken by Mike Garland in July 2018
509877
East Portal
Photo taken by Mike Garland in July 2018
509878
Photo taken by Mike Garland in July 2018
509879
Photo taken by Mike Garland in July 2018
509880
West Approach
Photo taken by Mike Garland in July 2018
509881
West Approach
Photo taken by Mike Garland in July 2018
509882
West Portal
Photo taken by Mike Garland in July 2018
509883
West Portal
Photo taken by Mike Garland in July 2018
509884
West Portal
Photo taken by Mike Garland in July 2018
509885
Photo taken by Mike Garland in July 2018
509886
Photo taken by Mike Garland in July 2018
509887
Photo taken by Mike Garland in July 2018
509888
Photo taken by Mike Garland in July 2018
509889
Photo taken by Mike Garland in July 2018
509890
Photo taken by Mike Garland in July 2018
509891
Photo taken by Mike Garland in July 2018
509892
East Approach
Photo taken by Mike Garland in July 2018
Status: Open to traffic
Location: 40.173426,-123.603352
Carries Alderpoint Road over Eel River and NWP RR tracks
Design: beam/stringer/steel
Design Details: Double haunched girder with patchplate center section
Total Length: 762.2 Feet
Span Length: 279.9 Feet
Overview: Steel stringer bridge over Eel River and NWP RR tracks on Alderpoint Road
History: Built 1972
Built: 1972
Location: Humboldt County
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156621
Alderpoint Road Bridge
Looking North
Photo taken by Craig Philpott in February 2010
156622
Alderpoint Bridge
Detail
Photo taken by Craig Philpott in February 2010
156623
Alderpoint Bridge
Detail
Photo taken by Craig Philpott in February 2010
156624
Alderpoint Bridge
Looking West along South face.
Photo taken by Craig Philpott in February 2010
156625
Alderpoint Bridge
West pier detail
Photo taken by Craig Philpott in February 2010
454194
Alder Point Road Bridge
The Times Standard: November 5 1972
Status: Open to traffic
Location: 40.140000,-123.990833
Carries Ettersburg Honeydew Road over Mattole River
Design: arch/deck/open
Design Details: Concrete open spandrel deck arch
Total Length: 103.0 Feet
Span Length: 95.1 Feet
Overview: Concrete open spandrel Arch bridge over Mattole River on Ettersburg Honeydew Road
History: Built 1928
Built: 1928
Location: Humboldt County
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170775
Ettersburg Road Bridge
Looking North, west face.
Photo taken by Craig Philpott in July 2010
170776
Ettersburg Road Bridge
Looking South, East face.
Photo taken by Craig Philpott in July 2010
170777
Ettersburg Road Bridge
Looking North, west face.
Photo taken by Craig Philpott in July 2010
170778
Ettersburg Road Bridge
Looking South
Photo taken by Craig Philpott in July 2010
170779
Ettersburg Road Bridge
Looking South
Photo taken by Craig Philpott in July 2010
170780
Ettersburg Road Bridge
Looking South
Photo taken by Craig Philpott in July 2010
170781
Ettersburg Road Bridge
Looking East
Photo taken by Craig Philpott in July 2010
170782
Ettersburg Road Bridge
Looking SE
Photo taken by Craig Philpott in July 2010
170783
Ettersburg Road Bridge
Looking SE
Photo taken by Craig Philpott in July 2010
170784
Ettersburg Road Bridge
Looking SE
Photo taken by Craig Philpott in July 2010
170785
Ettersburg Road Bridge
North Abutment
Photo taken by Craig Philpott in July 2010
170786
Ettersburg Road Bridge
Looking East
Photo taken by Craig Philpott in July 2010
170787
Ettersburg Road Bridge
Looking East
Photo taken by Craig Philpott in July 2010
Status: Open to traffic
Location: 40.067985,-123.790903
Carries Lake Benbow Drive over Eel River
Design: arch/deck/closed
Design Details: Concrete and Stone arch
Total Length: 257.9 Feet
Span Length: 102.0 Feet
Overview: Concrete and stone arch bridge over Eel River on Lake Benbow Drive
History: Stone road bridge that was built in 1931 as part of the Benbow Inn Resort. Bypassed by a Hwy 101 freeway bridge. Still used but a dead end.
Built: 1931
Location: Humboldt County
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116086
Benbow Bridge
Benbow Bridge
Photo taken by Larry Matthews on June 25, 2008
116087
Benbow Bridge
Benbow Bridge
Photo taken by Larry Matthews on June 25, 2008
116088
Benbow Bridge
Benbow Bridge
Photo taken by Larry Matthews on June 25, 2008
156626
Benbow Bridge
Looking NW
Photo taken by Craig Philpott in February 2010
156627
Benbow Bridge
Looking NW at north abutment
Photo taken by Craig Philpott in February 2010
156628
Benbow Bridge
Looking West
Photo taken by Craig Philpott in February 2010
195656
Stone Arch Bridge, Old Highway 101, At Benbow Inn. South Of Garberville, Humboldt County, California. Looking W.
Photo taken by Historic American Engineering Record
495526
Benbow Bridge
1930s view
Photo from old postcard
Status: Replaced by a concrete beam bridge in 1994
Location: 40.594886,-124.274663
Carries Dillon Road over Salt River
Design: beam/tee
Design Details: When built the Valley Flower Bridge was recognized as the world's longest reinforced concrete girder bridge, whose 142-foot spans were nearly twice as long as the previous longest concrete bridge girders.
(Information from HAER-CA-126)
Total Length: 291.0 Feet
Span Length: 142.1 Feet
Overview: Lost Concrete tee beam bridge over Salt River on Dillon Road in Port Kenyon
History: Built 1919, Replaced 1994
Built: 1919
Location: Humboldt County
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133619
Contextual View Of Bridge In Setting, From Downstream, View To Southwest Along Port Kenyon Road. South End Of Bridge At Left
Photo taken by Historic American Engineering Record
133620
Contextual View Of Bridge In Setting, From North End Of Bridge, View To North Along Dillon Road. Former Valley Flower Creamery At Right Center
Photo taken by Historic American Engineering Record
133621
Contextual View Of Bridge In Setting, View To South Along Dillon Road. Former Valley Flower Creamery At Left
Photo taken by Historic American Engineering Record
133622
Centerline View Of Bridge. View To Northeast From Intersection Of Port Kenyon Road And Dillon Road. Former Valley Flower Creamery In Background Center. Note Extremely Heavy Foliage On Both Sides Of Bridge
Photo taken by Historic American Engineering Record
133623
Downstream Elevation, View To Southeast. Dark Stains On Side Of Main Girder Are From Deck Drain Scuppers, Marking Deck Level Within The Girders. Compare This View And Ca-126-7 To Ca-126-19 For Indication Of Severity Of Siltation Of Salt River Channel
Photo taken by Historic American Engineering Record
133624
Centerline View Of Bridge, View To Southwest
Photo taken by Historic American Engineering Record
133625
Upstream Elevation, View To Northeast
Photo taken by Historic American Engineering Record
133626
Detail, Upstream Endpost And Abutment Wingwall At South End Of Bridge, View To Northwest
Photo taken by Historic American Engineering Record
133627
Detail, South Abutment, View To Southwest Along Centerline From Beneath Bridge
Photo taken by Historic American Engineering Record
133628
Underside Of Bridge, View To Northeast Along Centerline From South Abutment, Center Pier In Background. Note Transverse Floor Beams, Intermediate Stringers, Depth Of Main Girders
Photo taken by Historic American Engineering Record
133629
Detail, Center Pier. View To North Along Centerline
Photo taken by Historic American Engineering Record
133630
Underside Of Bridge, View To Southwest Along Centerline From North Abutment
Photo taken by Historic American Engineering Record
133631
Detail, North Abutment, View To Northeast Along Centerline From Beneath Bridge
Photo taken by Historic American Engineering Record
133632
Detail, Upstream Side Of North Abutment, Showing Main Girder Seat. 15. 'Concrete Bridge Over Salt River, Port Kenyon, Humboldt County, California, A.J. Logan, County Surveyor, H.J. Brunnier, Consulting Engineer, March 7, 1919,' Showing General Plan,
Photo taken by Historic American Engineering Record
133633
Downstream Elevation Of Bridge. Original Photograph Published In The Architect And Engineer, July 1920, P.90, Photographer Unknown. Note Width Of Channel, And Compare To Ca-126-5 And Ca-126-7
Photo taken by Historic American Engineering Record
133634
San Francisco-Oakland Bay Bridge Contract Recipients, April 28, 1933, Photographer Unknown. Standing, Left To Right: Edward J. Schneider, Columbia Steel Corporation; C.C. Horton, Healy-Tibbitts Construction Company; Henry J. Kaiser, Bridge Builders,
Photo taken by Historic American Engineering Record
133635
Photo taken by Historic American Engineering Record
133636
Photo taken by Historic American Engineering Record
133637
Photo taken by Historic American Engineering Record
Status: Open to pedestrians
Location: 40.480564,-123.890660
Carries Abandoned CA-36 over Van Duzen River
Design: arch/through/concrete
Design Details: The Van Duzen River Bridge aka, Lower Blackburn Grade Bridge is a reinforced concrete through arch. The main span is approximately 150-feet with an overall structure length of 258-feet. The bridge features an ornate concrete through arch with inset panels along the arch. The through arch also passes through the railing of the structure acting as the rail where the arch sweeps below the roadway.
The bridge also features an architectural rail, which is standard for the other bridges along the Van Duzen River built during this era. The Lower Blackburn Grade Bridge is the only through arch built along the Van Duzen River Highway.
Total Length: 258.0 Feet
Span Length: 150.0 Feet
Overview: Concrete through arch bridge over Van Duzen River on Abandoned CA-36
History: Built 1925, Abandoned 1985
Built: 1925
Location: Humboldt County
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152936
Van Duzen River Bridge
Lower Blackburn Grade Bridge
Photo taken by Michael Goff on January 16, 2010
152937
Roadway View
Photo taken by Michael Goff on January 16, 2010
152938
Lower Blackburn Grade Bridge
Photo taken by Michael Goff on January 16, 2010
152939
Van Duzen River Bridge
Photo taken by Michael Goff on January 16, 2010
152940
Deck View
Photo taken by Michael Goff on January 16, 2010
152941
Arch Abutment and Main Span
Photo taken by Michael Goff on January 16, 2010
152942
Rail Detail
Photo taken by Michael Goff on January 16, 2010
152943
Date Plaque
graffiti has covered the numbers but the "1925" is still visable
Photo taken by Michael Goff on January 16, 2010
152944
Arch - Cross Bracing - Hanger Connection
Photo taken by Michael Goff on January 16, 2010
152945
Arch Through the Rail and Deck
Photo taken by Michael Goff in January 16, 2010
152946
Approach Roadway View
Photo taken by Michael Goff in January 16, 2010
167796
View looking West from new bridge
Photo taken by Craig Philpott in June 2010
167797
View looking West from new bridge
Photo taken by Craig Philpott in June 2010
167798
View looking West from new bridge
Photo taken by Craig Philpott in June 2010
167799
View looking West from new bridge
Photo taken by Craig Philpott in June 2010
Status: Intact but closed to all vehicular traffic, open to pedestrians and bicyclists. Bypassed.
Location: 40.469043,-123.799095
Carries CA-36 over Van Duzen River
Design: arch/deck/open
Design Details: The Van Duzen River Bridge at Bridgeville is a reinforced concrete open spandrel deck arch with reinforced concrete slab approach spans. The bridge features a rib arch main span of 144-feet to complement the 234-foot total length. The bridge also features architectural railing and date plaques at each abutment.
Total Length: 233.9 Feet
Span Length: 144.0 Feet
Overview: Deck arch bridge over Van Duzen River on abandoned section of CA-36 in Bridgeville
History: Built 1925
Built: 1925
Location: Humboldt County
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152918
Bridgeville Bridge
Photo taken by Michael Goff on January 16, 2010
152919
Van Duzen River Bridge
Photo taken by Michael Goff on January 16, 2010
152920
Van Duzen River Bridge
Photo taken by Michael Goff on January 16, 2010
152921
Under the Bridgeville Bridge
Photo taken by Michael Goff on January 16, 2010
152922
Bridgeville Bridge
Photo taken by Michael Goff on January 16, 2010
152923
Deck View
Photo taken by Michael Goff on January 16, 2010
152924
Date Plaque
Photo taken by Michael Goff on January 16, 2010
152925
Rail Detail
Photo taken by Michael Goff on January 16, 2010
152926
Van Duzen River Bridge
Photo taken by Michael Goff on January 16, 2010
167800
Van Duzen River Bridge in Bridgeville
Looking east from abutment of new bridge
Photo taken by Craig Philpott in June 2010
167801
Van Duzen River Bridge in Bridgeville
Looking East showing new bridge and old bridge.
Photo taken by Craig Philpott in June 2010
167802
Van Duzen River Bridge in Bridgeville
Photo taken by Craig Philpott in June 2010
167803
Van Duzen River Bridge in Bridgeville
Photo taken by Craig Philpott in June 2010
167804
Van Duzen River Bridge in Bridgeville
Photo taken by Craig Philpott in June 2010
167805
Van Duzen River Bridge in Bridgeville
Photo taken by Craig Philpott in June 2010
167806
Van Duzen River Bridge in Bridgeville
Looking West from deck of old bridge to new bridge.
Photo taken by Craig Philpott in June 2010
167807
New Van Duzen River Bridge in Bridgeville
Looking West from deck of old bridge to new bridge.
Photo taken by Craig Philpott in June 2010
167808
Van Duzen River Bridge in Bridgeville
Photo taken by Craig Philpott in June 2010
167809
Van Duzen River Bridge in Bridgeville
Photo taken by Craig Philpott in June 2010
Status: Closed to all traffic
Location: 40.353636,-123.917085
Carries Northwestern Pacific Railroad over Eel River
Design: truss/through/pratt
Design Details: Four through trusses, comprised of three different apparent ages and two designs, both Pratt and Warren trusses are included.
Total Length: 770.0 Feet
Span Length: 222.0 Feet
Overview: Pratt and Warren through truss bridge over Eel River on Northwestern Pacific Railroad
History: Built 1910; 2 northern spans lost during 1964 flood and replaced.
Built: 1910
Location: Humboldt County
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152812
Eel River RR bridge
Photo taken by Craig Philpott in January 2010
152813
Eel River RR bridge
Photo taken by Craig Philpott in January 2010
152814
Eel River RR bridge
Looking NW.
Photo taken by Craig Philpott in January 2010
152815
Eel River RR bridge
Looking NW, showing southern most truss with detail showing 1910.
Photo taken by Craig Philpott in January 2010
152816
Eel River RR bridge
Looking N, truss detail showing year 1910.
Photo taken by Craig Philpott in January 2010
152817
Eel River RR bridge
Looking N, both these trusses have crossmember detail with year 1910.
Photo taken by Craig Philpott in January 2010
152818
Eel River RR bridge
Looking NE.
Photo taken by Craig Philpott in January 2010
152819
Eel River RR bridge
Looking North, showing truss detail with year 1910.
Photo taken by Craig Philpott in January 2010
152820
Eel River RR bridge
Looking N
Photo taken by Craig Philpott in January 2010
152821
Eel River RR bridge
Looking NE
Photo taken by Craig Philpott in January 2010
152822
Eel River RR bridge
Looking NE
Photo taken by Craig Philpott in January 2010
152823
Eel River RR bridge
Looking South. South for of Eel River enters picture from right side of image.
Photo taken by Craig Philpott in January 2010
180408
Eel Rvr Confluence RR bridge
Unknown apparent bridge debris just downstream from current bridge.
Photo taken by Craig Philpott
180409
Eel Rvr Confluence RR bridge
Unknown apparent bridge debris just downstream from current bridge.
Photo taken by Craig Philpott
180410
Eel Rvr Confluence RR bridge
Unknown apparent bridge debris just downstream from current bridge.
Photo taken by Craig Philpott
180411
Eel Rvr Confluence RR bridge
Foot of Northern bridge segment.
Photo taken by Craig Philpott
180412
Eel Rvr Confluence RR bridge
Looking South toward central pier.
Photo taken by Craig Philpott
180413
Eel Rvr Confluence RR bridge
Replacement section, probably after 1964 flood, no visible dates.
Photo taken by Craig Philpott
180414
Eel Rvr Confluence RR bridge
Replacement section, probably after 1964 flood, no visible dates.
Photo taken by Craig Philpott
180415
Eel Rvr Confluence RR bridge
Replacement section, probably after 1964 flood, no visible dates.
Photo taken by Craig Philpott
180416
Eel Rvr Confluence RR bridge
Replacement section, probably after 1964 flood, no visible dates.
Photo taken by Craig Philpott
180417
Eel Rvr Confluence RR bridge
Replacement section, probably after 1964 flood, no visible dates.
Photo taken by Craig Philpott
180418
Eel Rvr Confluence RR bridge
Second span from the South, 1910 date on bridge.
Photo taken by Craig Philpott
180419
Eel Rvr Confluence RR bridge
Second span from the South, 1910 date on bridge.
Photo taken by Craig Philpott
180420
Eel Rvr Confluence RR bridge
Second span from the South, 1910 date on bridge.
Photo taken by Craig Philpott
180421
Eel Rvr Confluence RR bridge
Second span from the South, 1910 date on bridge.
Photo taken by Craig Philpott
180422
Eel Rvr Confluence RR bridge
Second span from the South, 1910 date on bridge.
Photo taken by Craig Philpott
180428
Eel Rvr Confluence RR bridge
Looking North through sections dated 1910
Photo taken by Craig Philpott
180429
Eel Rvr Confluence RR bridge
Looking South through South most section dated 1910.
Photo taken by Craig Philpott
180430
Eel Rvr Confluence RR bridge
Photo taken by Craig Philpott
180431
Eel Rvr Confluence RR bridge
Looking North through sections dated 1910
Photo taken by Craig Philpott
180432
Eel Rvr Confluence RR bridge
date plate.
Photo taken by Craig Philpott
180433
Eel Rvr Confluence RR bridge
Looking North through sections dated 1910
Photo taken by Craig Philpott
180434
Eel Rvr Confluence RR bridge
Looking NW.
Photo taken by Craig Philpott
180435
Eel Rvr Confluence RR bridge
Looking NW.
Photo taken by Craig Philpott
294023
NWP-Cairn Rock Bridge
Looking Se
Photo taken by Royce and Bobette Haley in August 2014
294024
NWP-Cairn Rock Bridge
looking SE
Photo taken by Royce and Bobette Haley in August 2014
294025
NWP-Cairn Rock Bridge
North Warren Truss
Photo taken by Royce and Bobette Haley in August 2014
294026
NWP-Cairn Rock Bridge
South Warren Truss
Photo taken by Royce and Bobette Haley in August 2014
294027
NWP-Cairn Rock Bridge
North Pratt truss
Photo taken by Royce and Bobette Haley in August 2014
294028
NWP-Cairn Rock Bridge
Connection north and south Pratt
Photo taken by Royce and Bobette Haley in August 2014
294029
NWP-Cairn Rock Bridge
North Pratt
Photo taken by Royce and Bobette Haley in August 2014
294030
NWP-Cairn Rock Bridge
North Pratt south Warren connection
Photo taken by Royce and Bobette Haley in August 2014
294031
NWP-Cairn Rock Bridge
South Warren truss
Photo taken by Royce and Bobette Haley in August 2014
294032
NWP-Cairn Rock Bridge
North and south Warren connection
Photo taken by Royce and Bobette Haley in August 2014
510302
Photo taken by Mike Garland in August 2018
510303
Photo taken by Mike Garland in August 2018
510304
Photo taken by Mike Garland in August 2018
510305
Photo taken by Mike Garland in August 2018
510306
Photo taken by Mike Garland in August 2018
510307
Photo taken by Mike Garland in August 2018
510308
Photo taken by Mike Garland in August 2018
510309
Photo taken by Mike Garland in August 2018
510310
Photo taken by Mike Garland in August 2018
510311
Photo taken by Mike Garland in August 2018
510312
Photo taken by Mike Garland in August 2018
510313
Photo taken by Mike Garland in August 2018
Status: Open to traffic
Location: 40.276667,-123.851667
Carries State Route 254 over Elk Creek
Design: beam/tee
Design Details: Concrete tee beam
Total Length: 120.1 Feet
Span Length: 40.0 Feet
Overview: Concrete tee beam bridge over Elk Creek on State Route 254
History: Built 1940
Built: 1940
Location: Humboldt County
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152796
Elk Creek
Looking NE
Photo taken by Craig Philpott in January 2010
152797
Elk Creek
Looking NE
Photo taken by Craig Philpott in January 2010
152798
Elk Creek
Builders block
Photo taken by Craig Philpott in January 2010
Status: Open to traffic
Location: 40.192782,-123.768169
Carries State Route 254 over Ohman Creek
Design: beam/tee
Design Details: Concrete tee beam
Total Length: 160.1 Feet
Span Length: 43.0 Feet
Overview: Concrete tee beam bridge over Ohman Creek on State Route 254
History: Built 1939
Built: 1939
Location: Humboldt County
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152799
Ohman Creek Bridge
Looking NW
Photo taken by Craig Philpott in January 2010
152800
Ohman Creek Bridge
Builders stone
Photo taken by Craig Philpott in January 2010
152801
Ohman Creek Bridge
Looking North
Photo taken by Craig Philpott in January 2010
Status: Open to traffic
Location: 40.282600,-123.856996
Carries State Route 254 over Bridge Creek
Design: beam/tee
Design Details: Concrete tee beam
Total Length: 160.1 Feet
Span Length: 40.0 Feet
Overview: Concrete tee beam bridge over Bridge Creek on State Route 254
History: Built 1938
Built: 1938
Location: Humboldt County
View Bridge Information In Wayback Machine
152793
Bridge Creek
Looking NE
Photo taken by Craig Philpott in January 2010
152794
Bridge Creek
Wooden Rail detail
Photo taken by Craig Philpott in January 2010
152795
Bridge Creek
Builders stone
Photo taken by Craig Philpott in January 2010
195657
Bridge Creek Bridge, Avenue Of The Giants, Old Highway 101. Humboldt County, California. Looking E.
Photo taken by Historic American Engineering Record
Status: Open to traffic
Location: 40.328253,-123.842112
Carries McCann Road over Eel River, Middle Fork
Design: ferry
Design Details: People ferry is small skiff operated by Humboldt County Public Works Department.
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Ferry across Eel River, Middle Fork on McCann Road
History: Ferry operates every winter crossing Eel River
Built:
Location: Humboldt County
View Bridge Information In Wayback Machine
152782
McCann Ferry
Operators shack, West side of Eel River.
Photo taken by Craig Philpott in January 2010
152783
McCann Ferry
Steps down to ferry on West side of Eel River. Steps covered with flooding during high water.
Photo taken by Craig Philpott in January 2010
152784
McCann Ferry
Creek crossing at West approach to McCann Ferry.
Photo taken by Craig Philpott in January 2010
152785
McCann Ferry
McCann Ferry preparing to board passengers on West bank of Eel River.
Photo taken by Craig Philpott in January 2010
152786
McCann Ferry
On board ferry looking North on Eel River.
Photo taken by Craig Philpott in January 2010
152787
McCann Ferry
On board ferry looking South to McCann Road Bridge
Photo taken by Craig Philpott in January 2010
Status: Open to traffic
Replacement project in process, for completion in 2025.
Location: 40.325833,-123.838889
Carries McCann Road over Eel River
Design: slab
Design Details: Slab
Total Length: 301.9 Feet
Span Length: 20.0 Feet
Overview: Slab bridge over Eel River on McCann Road
History: Built 1965; replacement scheduled for completion 2025
Built: 1965
Location: Humboldt County
View Bridge Information In Wayback Machine
152780
McCann Road Bridge
Looking from West to East.
Photo taken by Craig Philpott in January 2010
152781
McCann Road Bridge
Looking South, upstream, at McCann Bridge from McCann Ferry skiff.
Photo taken by Craig Philpott in January 2010
Status: Replaced by new bridge in 1996
Location: 40.536667,-124.146667
Carries U.S. 101 over Van Duzen River
Design: arch/deck/open
Design Details: Open-spandrel arch
Total Length: 788.1 Feet
Span Length: 163.1 Feet
Overview: Lost Open-spandrel arch bridge over Van Duzen River on U.S. 101
History: Built 1925, Replaced 1996
Built: 1925
Location: Humboldt County
View Bridge Information In Wayback Machine
137042
Contextual View Of Bridge In Setting, Looking East From Downstream. Downstream Highway Bridge Dates From 1952, Upstream Railroad Bridge Dates From 1913
Photo taken by Historic American Engineering Record
137043
Contextual View Of Bridge In Setting, Looking Southwest From Elevated Grade Of Eureka Southern Railroad. Eureka Southern Truss Bridge At Extreme Left, 1924 Highway Bridge In Center, 1952 Highway Bridge At Right
Photo taken by Historic American Engineering Record
137044
Oblique View Of Upstream Elevation, Looking West From Eureka Southern Railroad Bridge
Photo taken by Historic American Engineering Record
137045
Oblique View Of Upstream Elevation, Looking Southwest From River Bank
Photo taken by Historic American Engineering Record
137046
Oblique View Of Upstream Elevation, Looking North From Eureka Southern Railroad Bridge
Photo taken by Historic American Engineering Record
137047
View Of Southern Approach, Looking North
Photo taken by Historic American Engineering Record
137048
Oblique View Of Downstream Elevation, Looking Northeast
Photo taken by Historic American Engineering Record
137049
View, Looking South Of Downstream Sides Of All Three Bridges, Showing Proximity Of Bridge To One Another
Photo taken by Historic American Engineering Record
137050
Oblique View Of Downstream Elevation, Looking South From Beneath 1952 Highway Bridge
Photo taken by Historic American Engineering Record
137051
Oblique View Showing Downstream Side Of Bridge, Looking South Southwest
Photo taken by Historic American Engineering Record
137052
Detail View Of Bridge, Showing Spring Line Of Spans From Crown Of Mid-Channel Pier, Paired Columns Supporting Deck, Arched Window Railing, Looking West-Northwest From Eureka Southern Railroad Bridge. Cables Visible In Background Are Earthquake Restra
Photo taken by Historic American Engineering Record
137053
Detail View Of A Typical Pier On Downstream Side Of Bridge, Looking East-Southeast
Photo taken by Historic American Engineering Record
195663
Photographer Unknown Date Unknown Van Duzen Bridge, Humboldt County, Section F, Highway 1. 1. 1-Hum-1-F #24, Van Duzen Br. Appraoch/St. 167+50.
Photo taken by Historic American Engineering Record
506367
Van Duzen River Bridge (1925)
Photo from old postcard
Status: Open to traffic
Location: 40.034302,-123.775908
Carries US HIGHWAY 101 over South Fork Eel River
Design: beam
Design Details: Concrete Box beam
Total Length: 1424.0 Feet
Span Length: 175.9 Feet
Overview: Beam bridge over South Fork Eel River on US HIGHWAY 101
History: Built 1980
Built: 1980
Location: Humboldt County
View Bridge Information In Wayback Machine
145553
S Fork Eel River, Benbow, CA
Looking S showing 1980 bridge, upper, hwy 101, and previous bridge, old alignment, pre-1980.
Photo taken by Craig Philpott in August 2009
195655
Smith Point Bridge On Old Highway 101. South Of Garberville, Humboldt County, California. Looking Nne.
Photo taken by Historic American Engineering Record
Status: Replaced by new bridge
Location: 40.888750,-123.601417
Carries State Route 299 over South Fork Trinity River
Design: truss/deck
Design Details: The South Fork Trinity River Bridge was a continuous steel deck truss with steel stringer approach spans. It was supported on reinforced concrete piers and bents on spread footings. Its six spans totaled 483-feet in length, 25.7-feet in width, and carried two-lanes on a 24-foot roadway.
(Historic American Engineering Record CA-29)
Total Length: 483.0 Feet
Span Length: 0.0 Feet
Overview: Lost Deck truss bridge over South Fork Trinity River on State Route 299 in Salyer
History: Built 1929, Replaced 1988
Built: 1929
Location: Humboldt County
View Bridge Information In Wayback Machine
196328
View To Northeast. Oblique View Of Upstream Side Of Bridge. (90mm Lens)
Photo taken by Historic American Engineering Record
196329
View To East. Oblique View Of Downstream Side Of Bridge And East Pier. (135mm Lens)
Photo taken by Historic American Engineering Record
196330
View To Southwest. Oblique View Of Downstream Side Of Bridge And West Pier. (135mm Lens)
Photo taken by Historic American Engineering Record
196331
View To West-Southwest. Oblique View Of Upstream Side Of Bridge From Approximately Deck Level. (90mm Lens)
Photo taken by Historic American Engineering Record
196332
View To East. Oblique View Of Downstream Side Of Bridge. (90mm Lens)
Photo taken by Historic American Engineering Record
196333
View To Southeast. View Of Downstream Side Of Bridge From Riverbed. (90mm Lens)
Photo taken by Historic American Engineering Record
196334
View To Southeast. View Of Downstream Side Of Bridge From Confluence Of Trinity And South Fork Trinity Rivers. (90mm Lens)
Photo taken by Historic American Engineering Record
196335
View To South-Southeast. View Of Downstream Side Of Bridge. (90mm Lens)
Photo taken by Historic American Engineering Record
196336
View To Northeast. Oblique View Of Upstream Side Of Bridge From Approximately Deck Level. (90mm Lens)
Photo taken by Historic American Engineering Record
196337
View To Southeast. Overview Of Bridge In Setting; Downstream Side. (135mm Lens)
Photo taken by Historic American Engineering Record
196338
View To Southeast. More Distant Overview Of Bridge In Setting; Downstream Side. (135mm Lens)
Photo taken by Historic American Engineering Record
196339
View To Southwest. View Along Centerline From Trinity County Side Of Bridge. (90mm Lens)
Photo taken by Historic American Engineering Record
196340
View To Northeast. View Along Centerline From Humboldt County Side Of Bridge. (90mm Lens)
Photo taken by Historic American Engineering Record
196341
View To Southwest. View Through Truss Along Centerline From Below Deck. (65mm Lens)
Photo taken by Historic American Engineering Record
196342
View To Northeast. View Along Centerline From Below Deck; Detail Of Bent And Floor Beams. (65mm Lens)
Photo taken by Historic American Engineering Record
196343
View To South-Southwest. Detail, Connection Point U1 (See Plans), From Below Deck. (135mm Lens)
Photo taken by Historic American Engineering Record
196344
View To West. Detail, Connection Point L2 (See Plans), From Below Deck. (135mm Lens)
Photo taken by Historic American Engineering Record
196345
View To Southwest. Detail, Bearing Shoe, Upstream Side Of East Pier. Copy Negative Made From 35mm Color Transparency Made With With 135mm Lens By John Snyder, Due To Lack Of Sufficiently Long Lens For 4x5 Camera.
Photo taken by Historic American Engineering Record
196346
View To Northwest. Aerial View Of Bridge In Setting; Upstream Side. (135mm Lens)
Photo taken by Historic American Engineering Record
196347
View To Southeast. Aerial View Of Bridge In Setting; Downstream Side. (135mm Lens)
Photo taken by Historic American Engineering Record
196348
Stress Sheet And General Notes, May 22, 1929.
Photo taken by Historic American Engineering Record
196349
Approach Spans, May 22, 1929.
Photo taken by Historic American Engineering Record
196350
Truss Diagram, May 22, 1929.
Photo taken by Historic American Engineering Record
196351
Erection Details, May 22, 1929.
Photo taken by Historic American Engineering Record
196352
Main Piers And Bearings, May 22, 1929.
Photo taken by Historic American Engineering Record
196353
Truss Details L6-L8, May 22, 1929.
Photo taken by Historic American Engineering Record
196354
View To Northeast. Oblique View Of Upstream Side Of Bridge. (90mm Lens)
Photo taken by Historic American Engineering Record
196355
View To East. Oblique View Of Downstream Side Of Bridge And East Pier. (135mm Lens)
Photo taken by Historic American Engineering Record
196356
View To Southwest. Oblique View Of Downstream Side Of Bridge And West Pier. (135mm Lens)
Photo taken by Historic American Engineering Record
196357
View To West-Southwest. Oblique View Of Upstream Side Of Bridge From Approximately Deck Level. (90mm Lens)
Photo taken by Historic American Engineering Record
196358
View To East. Oblique View Of Downstream Side Of Bridge. (90mm Lens)
Photo taken by Historic American Engineering Record
196359
View To Southeast. View Of Downstream Side Of Bridge From Riverbed. (90mm Lens)
Photo taken by Historic American Engineering Record
196360
View To Southeast. View Of Downstream Side Of Bridge From Confluence Of Trinity And South Fork Trinity Rivers. (90mm Lens)
Photo taken by Historic American Engineering Record
196361
View To South-Southeast. View Of Downstream Side Of Bridge. (90mm Lens)
Photo taken by Historic American Engineering Record
196362
View To Northeast. Oblique View Of Upstream Side Of Bridge From Approximately Deck Level. (90mm Lens)
Photo taken by Historic American Engineering Record
196363
View To Southeast. Overview Of Bridge In Setting; Downstream Side. (135mm Lens)
Photo taken by Historic American Engineering Record
196364
View To Southeast. More Distant Overview Of Bridge In Setting; Downstream Side. (135mm Lens)
Photo taken by Historic American Engineering Record
196365
View To Southwest. View Along Centerline From Trinity County Side Of Bridge. (90mm Lens)
Photo taken by Historic American Engineering Record
196366
View To Northeast. View Along Centerline From Humboldt County Side Of Bridge. (90mm Lens)
Photo taken by Historic American Engineering Record
196367
View To Southwest. View Through Truss Along Centerline From Below Deck. (65mm Lens)
Photo taken by Historic American Engineering Record
196368
View To Northeast. View Along Centerline From Below Deck; Detail Of Bent And Floor Beams. (65mm Lens)
Photo taken by Historic American Engineering Record
196369
View To South-Southwest. Detail, Connection Point U1 (See Plans), From Below Deck. (135mm Lens)
Photo taken by Historic American Engineering Record
196370
View To West. Detail, Connection Point L2 (See Plans), From Below Deck. (135mm Lens)
Photo taken by Historic American Engineering Record
196371
View To Southwest. Detail, Bearing Shoe, Upstream Side Of East Pier. Copy Negative Made From 35mm Color Transparency Made With With 135mm Lens By John Snyder, Due To Lack Of Sufficiently Long Lens For 4x5 Camera.
Photo taken by Historic American Engineering Record
196372
View To Northwest. Aerial View Of Bridge In Setting; Upstream Side. (135mm Lens)
Photo taken by Historic American Engineering Record
196373
View To Southeast. Aerial View Of Bridge In Setting; Downstream Side. (135mm Lens)
Photo taken by Historic American Engineering Record
196374
Stress Sheet And General Notes, May 22, 1929.
Photo taken by Historic American Engineering Record
196375
Approach Spans, May 22, 1929.
Photo taken by Historic American Engineering Record
196376
Truss Diagram, May 22, 1929.
Photo taken by Historic American Engineering Record
196377
Erection Details, May 22, 1929.
Photo taken by Historic American Engineering Record
196378
Main Piers And Bearings, May 22, 1929.
Photo taken by Historic American Engineering Record
196379
Truss Details L6-L8, May 22, 1929.
Photo taken by Historic American Engineering Record
196380
Photo taken by Historic American Engineering Record
196381
Photo taken by Historic American Engineering Record
196382
Photo taken by Historic American Engineering Record
196383
Photo taken by Historic American Engineering Record
196384
Photo taken by Historic American Engineering Record
196385
Photo taken by Historic American Engineering Record
196386
Photo taken by Historic American Engineering Record
196387
Photo taken by Historic American Engineering Record
196388
Photo taken by Historic American Engineering Record
Status: Replaced by new bridge
Location: 40.090833,-123.798889
Carries Sprowl Creek Road over South Fork Eel River
Design: truss/through/parker
Design Details: Parker pin connected through truss steel bridge
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Parker through truss bridge over South Fork Eel River on Sprowl Creek Road
History: Replaced 1982
Built:
Location: Humboldt County
View Bridge Information In Wayback Machine
161352
Moody Bridge
161353
Moody Bridge
161354
Moody Bridge
161355
Moody Bridge
161356
Moody Bridge
169168
Sprowel creek
Detail of inclined end post pin conection
169169
Moody bridge
169173
Moody bridge
169174
Moody bridge
169175
Moody bridge
169176
Moody Bridge
169177
Moody Bridge
Status: Closed to all traffic
Location: 40.537249,-124.146703
Carries Eureka Southern Railroad over Van Duzen River
Design: truss/through/pratt
Design Details: Three Pratt through trusses. Each truss is a six panel, pin connected design.
Total Length: 472.0 Feet
Span Length: 144.0 Feet
Overview: Pratt through truss bridge over Van Duzen River on Eureka Southern Railroad
History: Built 1913
Built: 1913
Location: Humboldt County
View Bridge Information In Wayback Machine
164929
Looking SE
Driving south. There is no good way to get a photo angle on this bridge. It seems so close and yet all accesses seems blocked by gates and fences and poison oak.
Photo taken by Craig Philpott in May 2010
164930
Looking East
End panel showing year cutout
Photo taken by Craig Philpott in May 2010
164931
Looking East
Photo taken by Craig Philpott in May 2010
294094
NWP-Van Duzen River Bridge
Looking South
Photo taken by Royce and Bobette Haley in August 2014
294095
NWP-Van Duzen River Bridge
Detail
Photo taken by Royce and Bobette Haley in August 2014
294096
NWP-Van Duzen River Bridge
Looking NE
Photo taken by Royce and Bobette Haley in August 2014
294097
NWP-Van Duzen River Bridge
Looking NE
Photo taken by Royce and Bobette Haley in August 2014
294098
NWP-Van Duzen River Bridge
Looking NE
Photo taken by Royce and Bobette Haley in August 2014
294099
NWP-Van Duzen River Bridge
Looking NE
Photo taken by Royce and Bobette Haley in August 2014
294100
NWP-Van Duzen River Bridge
Top chord
Photo taken by Royce and Bobette Haley in August 2014
294101
NWP-Van Duzen River Bridge
Top chord barrel
Photo taken by Royce and Bobette Haley in August 2014
294102
NWP-Van Duzen River Bridge
Looking NE
Photo taken by Royce and Bobette Haley in August 2014
294104
NWP-Van Duzen River Bridge
Looking NE
Photo taken by Royce and Bobette Haley in August 2014
294105
NWP-Van Duzen River Bridge
Looking NE
Photo taken by Royce and Bobette Haley in August 2014
294106
NWP-Van Duzen River Bridge
Looking NE
Photo taken by Royce and Bobette Haley in August 2014
294107
NWP-Van Duzen River Bridge
Looking NE
Photo taken by Royce and Bobette Haley in August 2014
294108
NWP-Van Duzen River Bridge
Detail
Photo taken by Royce and Bobette Haley in August 2014
294109
NWP-Van Duzen River Bridge
Detail
Photo taken by Royce and Bobette Haley in August 2014
294110
NWP-Van Duzen River Bridge
Detail
Photo taken by Royce and Bobette Haley in August 2014
294111
NWP-Van Duzen River Bridge
Detail
Photo taken by Royce and Bobette Haley in August 2014
294112
NWP-Van Duzen River Bridge
Detail
Photo taken by Royce and Bobette Haley in August 2014
294113
NWP-Van Duzen River Bridge
Looking NE
Photo taken by Royce and Bobette Haley in August 2014
294114
NWP-Van Duzen River Bridge
Looking NE
Photo taken by Royce and Bobette Haley in August 2014
422524
NWP - Van Duzen River Bridge
Photo taken by Richard Doody in October 2012
Status: Open to authorized vehicles only
Being reopened for use of excursion trains and trail use as of July 2018
Location: 40.806788,-124.142540
Carries Northwestern Pacific Railroad over Eureka Slough
Design: girder/deck/plate
Design Details: Vertical lift Deck plate girder
Total Length: 719.0 Feet
Span Length: 90.0 Feet
Overview: Deck plate girder bridge over Eureka Slough on Northwestern Pacific Railroad (NWP)
History:
Built:
Location: Humboldt County
View Bridge Information In Wayback Machine
164932
Eureka Slough RR bridge
Looking NW
Photo taken by Craig Philpott in May 2010
164933
Eureka Slough RR bridge
Looking NW
Photo taken by Craig Philpott in May 2010
164934
Eureka Slough RR bridge
South tower
Photo taken by Craig Philpott in May 2010
164935
Eureka Slough RR bridge
Looking NW
Photo taken by Craig Philpott in May 2010
164936
Eureka Slough RR bridge
North tower
Photo taken by Craig Philpott in May 2010
164937
Eureka Slough RR bridge
Looking West
Photo taken by Craig Philpott in May 2010
335637
NWP- Eureka Slough Bridge
California Drawbridges (Bernard C. Winn)
Photo taken by Douglas Butler in March 2013
354307
NWP - Eureka Slough Bridge
California Drawbridges (Bernard C. Winn)
Photo taken by Douglas Butler in June 2016
490430
Douglas Butler's Tech Drawing
Photo taken by Douglas Butler
Status: Closed to all traffic
Location: 40.636569,-124.224090
Carries Northwestern Pacific Railroad over Loleta creek
Design: girder/deck/plate
Design Details: Timber railroad trestle with one deck plate girder section.
Total Length: 682.0 Feet
Span Length: 88.0 Feet
Overview: Deck plate girder bridge over Loleta creek on Northwestern Pacific Railroad
History: Built 1930
Built: 1930
Location: Humboldt County
View Bridge Information In Wayback Machine
164941
Loleta Trestle
Looking SW
Photo taken by Craig Philpott in May 2010
164942
Loleta Trestle
Looking SW
Photo taken by Craig Philpott in May 2010
164943
Loleta Trestle
Photo taken by Craig Philpott in May 2010
Status: Replaced by new bridge
Location: 40.221944,-124.111944
Carries Wilder Ridge Road over Honeydew Creek
Design: truss/pony/warren
Design Details: Inverted Warren Pony Truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Warren pony truss bridge over Honeydew Creek on Wilder Ridge Road
History: Replaced 1980, apparently replaced again in 1990
Built: 1925
Location: Humboldt County
View Bridge Information In Wayback Machine
164988
Honeydew Creek
http://hdl.loc.gov/loc.pnp/hhh.ca1278
164989
Honeydew Creek
http://hdl.loc.gov/loc.pnp/hhh.ca1278
Library of Congress, Prints and Photograph Division, Washington, D.C. 20540 USA
164990
Honeydew Creek
http://hdl.loc.gov/loc.pnp/hhh.ca1278
Library of Congress, Prints and Photograph Division, Washington, D.C. 20540 USA
164991
Honeydew Creek
http://hdl.loc.gov/loc.pnp/hhh.ca1278
Library of Congress, Prints and Photograph Division, Washington, D.C. 20540 USA
169190
Honeydew Creek
169191
Honeydew Creek
169192
Honeydew Creek
169193
Honeydew Creek
169194
Honeydew Creek
170799
Honeydew Creek
Looking North
Photo taken by Craig Philpott in July 2010
170800
Honeydew Creek
Looking North
Photo taken by Craig Philpott in July 2010
196389
View East
Photo taken by Historic American Engineering Record
196390
Detail Of West Abutment, L0' Upstream Side
Photo taken by Historic American Engineering Record
196391
Profile And Plan, February 1925, Highway Bridge Honeydew Creek, Sheet 1
Photo taken by Historic American Engineering Record
196392
Profile And Plan, February 1925, Highway Bridge Honeydew Creek, Sheet 2
Photo taken by Historic American Engineering Record
196393
Plan For Repair And Strengthening, June 1955
Photo taken by Historic American Engineering Record
Status: Closed to all traffic
Location: 40.146449,-123.603256
Carries Northwestern Pacific Railroad over Eel River
Design: truss/through/pratt
Design Details: Pratt Through truss, three spans with deck plate girder approaches on concrete piers.
Total Length: 1124.0 Feet
Span Length: 202.0 Feet
Overview: Through truss bridge over Eel River on Northwestern Pacific Railroad (NWP)
History: Built 1913 by the American Bridge Co.
Built: 1913
Location: Humboldt County
View Bridge Information In Wayback Machine
167757
Alderpoint Railroad Bridge
Looking North
Photo taken by Craig Philpott in June 2010
167758
Alderpoint Railroad Bridge
West side lower chord
Photo taken by Craig Philpott in June 2010
167759
Alderpoint Railroad Bridge
South end deck truss
Photo taken by Craig Philpott in June 2010
167760
Alderpoint Railroad Bridge
South end deck truss
Photo taken by Craig Philpott in June 2010
167761
Alderpoint Railroad Bridge
South end deck truss
Photo taken by Craig Philpott in June 2010
167762
Alderpoint Railroad Bridge
South end deck truss
Photo taken by Craig Philpott in June 2010
167763
Alderpoint Railroad Bridge
South end portal
Photo taken by Craig Philpott in June 2010
167764
Alderpoint Railroad Bridge
Looking North on East face.
Photo taken by Craig Philpott in June 2010
167765
Alderpoint Railroad Bridge
Looking North on East face.
Photo taken by Craig Philpott in June 2010
167766
Alderpoint Railroad Bridge
Looking North on East face.
Photo taken by Craig Philpott in June 2010
167767
Alderpoint Railroad Bridge
Looking North on East face.
Photo taken by Craig Philpott in June 2010
167768
Alderpoint Railroad Bridge
Looking North on East face.
Photo taken by Craig Philpott in June 2010
167769
Alderpoint Railroad Bridge
Looking NE at West face.
Photo taken by Craig Philpott in June 2010
167770
Alderpoint Railroad Bridge
Looking NE at West face.
Photo taken by Craig Philpott in June 2010
167771
Alderpoint Railroad Bridge
Looking NE at West face.
Photo taken by Craig Philpott in June 2010
167772
Alderpoint Railroad Bridge
Looking NE at West face.
Photo taken by Craig Philpott in June 2010
167773
Alderpoint Railroad Bridge
Looking NE at West face.
Photo taken by Craig Philpott in June 2010
167774
Alderpoint Railroad Bridge
Looking NE at West face.
Photo taken by Craig Philpott in June 2010
167775
Alderpoint Railroad Bridge
Looking NE at West face.
Photo taken by Craig Philpott in June 2010
167776
Alderpoint Railroad Bridge
Looking NE at West face.
Photo taken by Craig Philpott in June 2010
167777
Alderpoint Railroad Bridge
Looking NE at West face.
Photo taken by Craig Philpott in June 2010
167778
Alderpoint Railroad Bridge
Looking NE at West face.
Photo taken by Craig Philpott in June 2010
167779
Alderpoint Railroad Bridge
South Portal
Photo taken by Craig Philpott in June 2010
167780
Alderpoint Railroad Bridge
South Portal
Photo taken by Craig Philpott in June 2010
167781
Alderpoint Railroad Bridge
South Portal
Photo taken by Craig Philpott in June 2010
167782
Alderpoint Railroad Bridge
Pin connection detail
Photo taken by Craig Philpott in June 2010
167783
Alderpoint Railroad Bridge
Photo taken by Craig Philpott in June 2010
167784
Alderpoint Railroad Bridge
Photo taken by Craig Philpott in June 2010
167785
Alderpoint Railroad Bridge
Photo taken by Craig Philpott in June 2010
167786
Alderpoint Railroad Bridge
Photo taken by Craig Philpott in June 2010
167787
Alderpoint Railroad Bridge
Photo taken by Craig Philpott in June 2010
167788
Alderpoint Railroad Bridge
North portal
Photo taken by Craig Philpott in June 2010
167789
Alderpoint Railroad Bridge
Builders plate
Photo taken by Craig Philpott in June 2010
167790
Alderpoint Railroad Bridge
North portal looking South.
Photo taken by Craig Philpott in June 2010
167791
Alderpoint Railroad Bridge
North portal
Photo taken by Craig Philpott in June 2010
167792
Alderpoint Railroad Bridge
Looking South
Photo taken by Craig Philpott in June 2010
167793
Alderpoint Railroad Bridge
Looking South
Photo taken by Craig Philpott in June 2010
167794
Alderpoint Railroad Bridge
Looking South
Photo taken by Craig Philpott in June 2010
167795
Alderpoint Railroad Bridge
Photo taken by Craig Philpott in June 2010
Status: Replaced by new bridge
Location: 41.288333,-124.058333
Carries US HIGHWAY 101 over Redwood Creek
Design: truss/through/pratt
Design Details: Steel Pratt Through Truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Pratt through truss bridge over Redwood Creek on US HIGHWAY 101
History: Replaced unknown year, current bridge installed 1988.
Built:
Location: Humboldt County
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184139
Redwood Creek Bridge, Orick CA
Undated historical postcard
Submitted by Craig Philpott
Status: Abandoned
Location: 40.959354,-123.836506
Carries over Redwood Creek
Design: truss/through/pratt
Design Details: Pratt through truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Abandoned pratt through truss bridge over Redwood Creek
History:
Built:
Location: Humboldt County
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226573
Redwood Creek
Photo taken by Craig Philpott
226574
Redwood Creek
Photo taken by Craig Philpott
Status: Open to pedestrians only
Former railroad bridge currently in use by pedestrians slated for demolition and replacement.
Location: 40.923949,-124.120329
Carries Rail-Trail over Mad River
Design: truss/through/pennsylvania
Design Details: Pennsylvania through truss
Covered Howe Through Truss
Pony plate girder
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Pennsylvania through truss bridge over Mad River on Rail-Trail
History: Covered truss built 1875; Relocated 1896; Rebuilt 1903; Pennsylvania through truss moved here from Washington in 1941; Covered truss dismantled 1955
Built: 1875
Location: Humboldt County
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476582
Hammond Bridge
Photo taken by Jack Durham
476583
Hammond Bridge
Photo from Alltrails
509422
South Approach
Photo taken by Mike Garland in July 2018
509423
South Approach
Photo taken by Mike Garland in July 2018
509424
South Portal
Photo taken by Mike Garland in July 2018
509425
Photo taken by Mike Garland in July 2018
509426
Photo taken by Mike Garland in July 2018
509427
Photo taken by Mike Garland in July 2018
509428
Photo taken by Mike Garland in July 2018
509429
Photo taken by Mike Garland in July 2018
509430
Photo taken by Mike Garland in July 2018
509431
Photo taken by Mike Garland in July 2018
509432
Photo taken by Mike Garland in July 2018
509433
Photo taken by Mike Garland in July 2018
509434
Photo taken by Mike Garland in July 2018
509435
Photo taken by Mike Garland in July 2018
509436
Photo taken by Mike Garland in July 2018
509437
North Pier
Photo taken by Mike Garland in July 2018
509438
Photo taken by Mike Garland in July 2018
509439
Photo taken by Mike Garland in July 2018
509440
Photo taken by Mike Garland in July 2018
509441
Not sure if this is the remains of the pier for the original covered bridge.
Photo taken by Mike Garland in July 2018
509442
Photo taken by Mike Garland in July 2018
509443
Photo taken by Mike Garland in July 2018
509459
Photo taken by Mike Garland in July 2018
509460
Photo taken by Mike Garland in July 2018
509461
Photo taken by Mike Garland in July 2018
509462
North Approach
Photo taken by Mike Garland in July 2018
509463
Photo taken by Mike Garland in July 2018
509464
North Approach
Photo taken by Mike Garland in July 2018
509465
Photo taken by Mike Garland in July 2018
509466
North Portal
Photo taken by Mike Garland in July 2018
509467
Photo taken by Mike Garland in July 2018
509468
Photo taken by Mike Garland in July 2018
509469
Photo taken by Mike Garland in July 2018
509470
Photo taken by Mike Garland in July 2018
509471
Photo taken by Mike Garland in July 2018
509472
Photo taken by Mike Garland in July 2018
509473
Photo taken by Mike Garland in July 2018
509474
Looking Northeast
Photo taken by Mike Garland in July 2018
509475
Looking Northeast
Photo taken by Mike Garland in July 2018
Status: Replaced by a new bridge
Location: 40.807009,-124.142559
Carries Northwestern Pacific RR over Eureka Slough
Design: truss/through
Design Details: Through truss swing
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Through truss bridge over Eureka Slough on Northwestern Pacific RR
History: Built 1916
Built: 1916
Location: Humboldt County
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289902
NWP - Eureka Slough Bridge (Old)
California Drawbridges Bernard C. Winn)
Photo taken by Douglas Butler
349047
California Drawbridges (Bernard C. Winn)
Photo taken by Douglas Butler in February 2016
Status: Abandoned
Location: 40.901050,-124.030133
Carries Removed Pipeline (Nee Arcata & Mad River Railroad) over Mad River
Design: truss/through/pratt
Design Details: Pratt through truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Abandoned pratt through truss bridge over Mad River on Pipeline (Nee Arcata & Mad River Railroad)
History:
Built:
Location: Humboldt County
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Status: No longer exists
Location: 40.804930,-124.139640
Carries California Route 101 over Eureka Sough
Design: truss/through
Design Details: Through truss vertical lift
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Through truss bridge over Eureka Sough on California Route 101
History: Built 1920
Built: 1920
Location: Humboldt County
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290787
Eureka Slough Bridge
California Drawbridges (Bernard C. Winn)
Photo taken by Douglas Butler in March 2013
298234
Eureka Slough Bridge
Removed
Photo taken by Douglas Butler
347834
California Drawbridges (Bernard C. Winn)
Photo taken by Douglas Butler in January 2016
347839
Biennial Report of the California Highway Commission, Volume 3 (1922)
Public Domain: Published Prior to 1923
Status: Derelict/abandoned
Location: 40.772417,-124.196561
Carries over Elk River
Design: beam/stringer/wood
Design Details: Timber stringer
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Abandoned timber stringer bridge over Elk River
History:
Built:
Location: Humboldt County
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Status: Abandoned
Location: 40.648435,-124.210787
Carries Northwestern Pacific Railroad over
Design: tunnel
Design Details: Tunnel
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Abandoned tunnel on Northwestern Pacific Railroad
History: Built 1884; Renovated in 1960
Built: 1884
Location: Humboldt County
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484605
NWP - Loleta Tunnel
northeast portal
Photo taken by Barry Evans
Status: Open to traffic
Location: 40.268692,-123.875547
Carries Private Drive over
Design: tunnel
Design Details: Sequoia Sempervirens
Tunnel
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Tunnel on Private Drive
History:
Built:
Location: Humboldt County
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Status: Open to traffic
Location: 40.034187,-123.776285
Carries Benbow Drive over South Fork Eel River
Design: girder/deck
Design Details: Deck girder
Total Length: 555.0 Feet
Span Length: 120.0 Feet
Overview: Deck girder bridge over South Fork Eel River on Benbow Drive
History: Built 1934
Built: 1934
Location: Humboldt County
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318607
S Fork Eel River, Benbow, CA
Looking S showing 1980 bridge, upper, hwy 101, and previous bridge, old alignment, pre-1980.
Photo taken by Craig Philpott in August 2009
318608
Smith Point Bridge On Old Highway 101. South Of Garberville, Humboldt County, California. Looking Nne.
Photo taken by Historic American Engineering Record
Status: Derelict/abandoned
Location: 40.410371,-123.928500
Carries NWP Railroad over Larabee Creek
Design: truss/through
Design Details: Double Through truss
Total Length: 300.0 Feet
Span Length: 150.0 Feet
Overview: Abandoned through truss bridge over Larabee Creek on NWP Railroad
History:
Built:
Location: Humboldt County
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Status: No longer exists
Location: 41.051617,-123.680450
Carries unnamed road over Supply Creek
Design: truss/pony
Design Details: Pony truss primary bridge with whole log timber stringer approaches
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Pony truss bridge over Supply Creek on unnamed road
History: Built 1882
Built: 1882
Location: Humboldt County
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324665
Supply Creek Bridge
Bridge over Supply Creek, between Post and Agency Buildings Yale Collection of Western Americana, Beinecke Rare Book and Manuscript Library
Photo submitted by Craig Philpott
Status: Abandoned
Location: 40.337362,-123.903027
Carries Northwestern Pacific Railroad over Dyerville Loop Road
Design: beam/stringer/wood
Design Details: Timber stringer
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Abandoned timber stringer bridge over Dyerville Loop Road on Northwestern Pacific Railroad
History:
Built:
Location: Humboldt County
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335641
Photo taken by Don Barrett
Status: Abandoned
Location: 40.500543,-124.088132
Carries Northwestern Pacific Railroad over Nanning Creek
Design: beam/stringer/wood
Design Details: Timber stringer
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Abandoned timber stringer bridge over Nanning Creek on Northwestern Pacific Railroad
History:
Built:
Location: Humboldt County
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Status: Abandoned
Location: 40.501339,-124.088213
Carries Northwestern Pacific Railroad over Scotia Bluffs/French Gulch
Design: beam/stringer/wood
Design Details: Timber stringer
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Abandoned timber stringer bridge over Scotia Bluffs/French Gulch on Northwestern Pacific Railroad
History:
Built:
Location: Humboldt County
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Status: Replaced by a new bridge
Location: 40.537400,-124.146913
Carries Northwestern Pacific Railroad over Van Duzen River
Design: truss/through
Design Details: Through truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Through truss bridge over Van Duzen River on Northwestern Pacific Railroad
History: Replaced 1913
Built:
Location: Humboldt County
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335646
Photo scanned by Don Harrison
Status: Replaced by a new bridge
Location: 40.537482,-124.147460
Carries Road over Van Duzen River
Design: truss/through/camelback
Design Details: Camelback through truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Camelback through truss bridge over Van Duzen River on Road
History: Built 1901; Replaced 1925
Built: 1901
Location: Humboldt County
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335647
Photo scanned by Don Harrison
Status: Open to traffic
Location: 40.572631,-124.046652
Carries Palco Rd over Yager Creek
Design: beam/tee
Design Details: Concrete tee beam bridge.
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Concrete tee beam bridge over Yager Creek on Palco Rd
History: Built unknown year.
Built:
Location: Humboldt County
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Status: Intact but closed to all traffic
Location: 41.074706,-123.687274
Carries Abandoned Trinity River Hwy (CA 96) over Hostler Creek
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 Hostler Creek on Abandoned Trinity River Hwy (CA 96)
History: Bypassed in 1992
Built:
Location: Humboldt County
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Status: Open to traffic
Location: 40.819748,-124.167195
Carries CA255 over Humboldt Bay
Design: beam/stringer/steel
Design Details: Steel stringer
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Steel stringer bridge over Humboldt Bay on CA255
History: Built 1971
Built: 1971
Location: Humboldt County
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422438
Samoa Bridge
Photo taken by Richard Doody in October 2012
422439
Samoa Bridge
Photo taken by Richard Doody in October 2012
422440
Samoa Bridge
Photo taken by Richard Doody in October 2012
Status: Replaced by a new bridge
Location: 40.353482,-123.917163
Carries Northwestern Pacific Railroad over South Fork Eel River
Design: truss/through/pratt
Design Details: Pratt through truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Pratt through truss bridge over South Fork Eel River on Northwestern Pacific Railroad
History: Built 1910
Built: 1910
Location: Humboldt County
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484629
Fair Use
Status: Open to traffic
Location: 40.812453,-124.158133
Carries State Route 255 over Marina Road
Design: arch/deck/corrugated
Design Details: Corrugated multi-plate arch
Total Length: 28.9 Feet
Span Length: 24.6 Feet
Overview: Corrugated multi-plate arch bridge over Marina Road on State Route 255
History: Built 1979
Built: 1979
Location: Humboldt County
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Status: Open to authorized vehicles only
Location: 40.165283,-123.784753
Carries Hwy 101 over Hooker Creek Road
Design: arch/deck/corrugated
Design Details: Corrugated multi-plate arch
Total Length: 24.0 Feet
Span Length: 2.3 Feet
Overview: Corrugated multi-plate arch bridge over Hooker Creek Road on Hwy 101
History: Built 1965
Built: 1965
Location: Humboldt County
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Status: Open to traffic
Location: 40.589711,-124.134614
Carries Rohnerville Road over Strongs Creek
Design: beam/tee
Design Details: Concrete tee beam
Total Length: 42.0 Feet
Span Length: 39.4 Feet
Overview: Concrete tee beam bridge over Strongs Creek on Rohnerville Road
History: Built 1915; rehabilitated 1979
Built: 1915
Location: Humboldt County
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Status: Open to traffic
Location: 40.636808,-124.282027
Carries Cockrobbin Island Road over Eel River
Design: beam/stringer/concrete
Design Details: Concrete stringer
Total Length: 776.0 Feet
Span Length: 105.6 Feet
Overview: Concrete stringer bridge over Eel River on Cockrobbin Island Road
History: Built 1961
Built: 1961
Location: Humboldt County
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476580
Pedrazzini (Cock Robbin Island) Bridge
Elevation
Photo taken from Google Maps
Status: Open to traffic
Location: 40.416771,-123.935133
Carries Holmes Flat Road over Eel River
Design: beam/stringer/wood
Design Details: Timber stringer low water crossing
Total Length: 89.9 Feet
Span Length: 82.0 Feet
Overview: Timber stringer bridge over Eel River on Holmes Flat Road
History: Built 1937; Acquired by County 1959; rehabilitated 1999; closed by CalTrans; borrowed Bailey Bridge in place 2014; low-water crossing/bridge repair project completed 2016
Built: 1937
Location: Humboldt County
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484654
Holmes Flat Rd Low Water Crossing
Holmes Flat Rd Low Water Crossing
Photo from www.holmeslarabeebridge.com
Status: Derelict/abandoned
Location: 40.447866,-123.984163
Carries North Western Pacific over hillside
Design: tunnel
Design Details: Tunnel
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Abandoned tunnel under hillside on North Western Pacific
History:
Built:
Location: Humboldt County
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484606
NWP - Shively Tunnel
2016 view
Photo taken by Sean Mitchell
Status: Replaced by a new bridge
Location: 41.161933,-124.112114
Carries US 101 over Maple Creek
Design: truss/deck
Design Details: Deck truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Deck truss bridge over Maple Creek on US 101
History:
Built:
Location: Humboldt County
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495492
US 101 Big Lagoon Bridge
Photo from old postcard
Status: Replaced by a new bridge
Location: 40.354133,-123.925475
Carries US 101 over South Fork Eel River
Design: truss/through
Design Details: Through truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost Through truss bridge over South Fork Eel River on US 101
History:
Built:
Location: Humboldt County
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495518
Dyerville Bridge
Photo from old postcard
495519
Dyerville Bridge
Photo from old postcard
Status: Replaced by a new bridge
Location: 40.354414,-123.925500
Carries CA-254 over South Fork Eel River
Design: truss/through/k-parker
Design Details: K-Parker through truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Lost K-Parker through truss bridge over South Fork Eel River on CA-254
History:
Built:
Location: Humboldt County
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508121
Bridge In Background
This listing is for the bridge in the background behind the bridge being described in the title and caption on this old photo.
Photo From AISC Prize Bridges, 1958
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.
