Status: Replaced by a new bridge
Location: 60.968083,-149.134921
Carries Crow Creek Highway over California Creek
Design: beam/stringer/wood
Design Details: Timber stringer
Total Length: 97.1 Feet
Span Length: 19.0 Feet
Overview: Lost wooden bridge over California Creek on Crow Creek Highway in Anchorage
History: Built 1950; replaced 2008
Built: 1950
Location: Anchorage
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Status: Replaced by a new bridge
Location: 61.403630,-149.457388
Carries Old Glenn Road over Peters Creek
Design: truss/pony/warren
Design Details: Riveted Warren pony truss
Total Length: 104.0 Feet
Span Length: 100.1 Feet
Overview: Lost pony truss bridge over Peters Creek on Old Glenn Road in Anchorage
History: Built 1950; replaced 2011
Built: 1950
Location: Anchorage
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Status: Open to traffic
Location: 61.451667,-149.373333
Carries Old Glenn Road over Eklutna River
Design: arch/deck/steel
Design Details: Steel arch
Total Length: 256.9 Feet
Span Length: 170.0 Feet
Overview: Steel arch bridge over Eklutna River on Old Glenn Road in Anchorage
History: Built 1952
Built: 1952
Location: Anchorage
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Status: Open to traffic
Location: 60.783143,-148.763560
Carries Portage Glacier Highway and Alaska Railroad over Maynard Mountain
Design: tunnel
Design Details: This is listed as the longest highway tunnel in North America.
Total Length: 13300.0 Feet
Span Length: 13300.0 Feet
Overview: Tunnel under Maynard Mountain on Portage Glacier Highway and Alaska Railroad
History: Built 1943, converted to combined railroad and highway tunnel 1998-2000
Built: 1943
Location: Anchorage
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238236
Photo taken by Gabor Eszes
238237
Photo taken by Mark Fickett
337607
Inside the Anton Anderson Tunnel to Whittier,Ak
Photo taken by Glenn Macdonald
Status: Open to traffic
Location: 60.785683,-148.838849
Carries Whittier Access Road over Portage Creek Tunnel
Design: tunnel
Design Details: Tunnel
Total Length: 444.9 Feet
Span Length: 444.9 Feet
Overview: Tunnel under Portage Creek Tunnel on Whittier Access Road
History: Built 1910
Built: 1910
Location: Anchorage
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337608
Portage Creek Tunnel
Photo taken by Glenn Macdonald
399794
West portal (Portage side) and bridge
Photo taken by Jann Mayer in June 2017
Status: Open to traffic
Location: 61.223537,-149.892483
Carries Alaska Railroad over Ship Creek
Design: truss/pony/pratt
Design Details: Pratt pony truss
Total Length: 190.0 Feet
Span Length: 140.0 Feet
Overview: Pony truss bridge over Ship Creek on Alaska Railroad
History:
Built:
Location: Anchorage
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236399
Photo taken by W.J. Manon
399796
Looking north along Ship Creek
Photo taken by Jann Mayer in July 2017
399797
East end of bridge
Note the rings on the corners - to facilitate lifting the bridge into place?
Photo taken by Jann Mayer in July 2017
399798
Center of span
The walkway is a fairly new addition. Note the holes in the gusset plate on top. It appears that extra diagonal members were removed at some point.
Photo taken by Jann Mayer in July 2017
399799
Underneath the west approach
Photo taken by Jann Mayer in July 2017
399800
Detail of gusset plat with extra memebers added
Photo taken by Jann Mayer in July 2017
399801
Detail of center of span
Photo taken by Jann Mayer in July 2017
399802
West end
Lift rings also visible on this end
Photo taken by Jann Mayer in July 2017
399803
Looking southeast
All of the diagonals have extra steel channels attached
Photo taken by Jann Mayer in July 2017
399804
Underside of main span
Photo taken by Jann Mayer in July 2017
Status: Open to traffic
Location: 61.318147,-149.618712
Carries Alaska Railroad over Eagle River
Design: girder/deck/plate
Design Details: Steel plate girders on trestle towers
Total Length: 305.0 Feet
Span Length: 0.0 Feet
Overview: Steel plate girder trestle over Eagle River on Alaska Railroad
History:
Built:
Location: Anchorage
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Status: Open to traffic
Location: 61.418818,-149.491125
Carries Alaska Railroad over Peters Creek
Design: girder/pony/plate
Design Details: Pony plate girder
Total Length: 60.0 Feet
Span Length: 0.0 Feet
Overview: Pony/through plate girder bridge over Peters Creek on Alaska Railroad
History:
Built:
Location: Anchorage
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Status: Open to traffic
Location: 60.845381,-148.986159
Carries Alaska Railroad over Twentymile River
Design: truss/deck/warren
Design Details: Warren deck truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Warren deck truss bridge over Twentymile River on Alaska Railroad
History:
Built:
Location: Anchorage
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Status: Open to traffic
Location: 61.481069,-149.243701
Carries Alaska Railroad over Knik River
Design: girder/pony/plate
Design Details:
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Pony plate girder bridge over Knik River on Alaska Railroad
History: Built 1937
Built: 1937
Location: Anchorage
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Status: Open to traffic
Slated for demolition and replacement.
Location: 60.972847,-149.467285
Carries Alaska Railroad over Bird Creek
Design: truss/pony/pratt
Design Details: Riveted Pratt pony truss
Total Length: 0.0 Feet
Span Length: 0.0 Feet
Overview: Pratt pony truss bridge over Bird Creek on Railroad
History:
Built: 1950
Location: Anchorage
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488830
Alaska - Bird Creek Bridge
Photo taken by AK
Status: Open to pedestrians only
Location: 61.223800,-149.886000
Carries over Ship Creek
Design: beam/stringer/wood
Design Details: Timber stringer
Total Length: 195.0 Feet
Span Length: 195.0 Feet
Overview: Timber stringer bridge over Ship Creek
History: Built by the Alaska Railroad, converted to pedestrian bridge after construction of the steel bridge downstream
Built:
Location: Anchorage
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399846
Looking north from the Ship Creek Trail
This bridge is a very popular salmon fishing spot.
Photo taken by Jann Mayer in June 2017
Status: Open to traffic
Location: 61.223299,-149.865422
Carries Alaska Railroad over Ship Creek
Design: beam/stringer/steel
Design Details: Steel stringer
Total Length: 145.0 Feet
Span Length: 145.0 Feet
Overview: Steel stringer bridge over Ship Creek on Alaska Railroad
History:
Built:
Location: Anchorage
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399847
Looking west from the bike trail overpass
Photo taken by Jann Mayer in June 2017
399848
Looking northwest (downstream)
Photo taken by Jann Mayer in June 2017
Status: Open to traffic
Location: 61.238097,-149.694114
Carries Glenn Highway over Ship Creek
Design: beam/tee
Design Details: Concrete tee beam
Total Length: 103.0 Feet
Span Length: 102.0 Feet
Overview: Concrete tee beam bridge over Ship Creek on Glenn Highway
History: Built 1988
Built: 1988
Location: Anchorage
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Status: Open to traffic
Location: 61.310461,-149.578822
Carries Glenn Highway over Eagle River Northbound 2
Design: beam/tee
Design Details: Concrete tee beam
Total Length: 583.0 Feet
Span Length: 151.3 Feet
Overview: Concrete tee beam bridge over Eagle River Northbound 2 on Glenn Highway
History: Built 2015
Built: 2015
Location: Anchorage
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Status: Open to traffic
Location: 61.180733,-149.903814
Carries Tudor Road over Willow Crest Poc
Design: other
Design Details: Other
Total Length: 212.0 Feet
Span Length: 113.9 Feet
Overview: Bridge over Willow Crest Poc on Tudor Road
History: Built 1974
Built: 1974
Location: Anchorage
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Status: Open to pedestrians only
Location: 61.198558,-149.799031
Carries Nrthrn Lgts Under over East High Poc
Design: other
Design Details: Other
Total Length: 229.0 Feet
Span Length: 125.0 Feet
Overview: Bridge over East High Poc on Nrthrn Lgts Under
History: Built 1984
Built: 1984
Location: Anchorage
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Status: Open to pedestrians only
Location: 61.097211,-149.838544
Carries Seward Hwy-Under over Rabbit Creek Poc
Design: other
Design Details: Other
Total Length: 317.9 Feet
Span Length: 170.0 Feet
Overview: Bridge over Rabbit Creek Poc on Seward Hwy-Under
History: Built 1972
Built: 1972
Location: Anchorage
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Status: Open to traffic
Location: 60.789856,-148.833352
Carries Alaska Railroad over Begich Peak
Design: tunnel
Design Details: Tunnel
Total Length: 4903.0 Feet
Span Length: 0.0 Feet
Overview: Tunnel under Begich Peak on Alaska Railroad
History:
Built:
Location: Anchorage
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488831
Alaska - Bear Valley Tunnel
Photo taken by Chris Guenzler
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.
