Share:

CHINIAK HIGHWAY over AMERICAN RIVER

Map

Coordinates:
+57.64096, -152.51311
57°38'27" N, 152°30'47" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:CHINIAK HIGHWAY over AMERICAN RIVER
Structure number:0284
Location:MILE POINT 10.5
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:30.8 ft. [9.4 m]
Total length:156.8 ft. [47.8 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:27.9 ft. [8.5 m]
Owner:State Highway Agency [01]
Year built:1974
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:5
Main spans material:Prestressed concrete [5]
Main spans design:Tee beam [04]
Deck type:Other [9]
Wearing surface:Bituminous [6]

Latest Available Inspection: September 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:678 [as of 2017]
Truck traffic:15% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Sufficiency rating:71.2

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2018FairGoodSatisfactoryGood67871.2
September 2016FairGoodSatisfactoryGood69882.0
September 2014FairGoodSatisfactoryGood60083.0
September 2012GoodGoodGoodGood54083.6
September 2010GoodGoodGoodGood52681.9
September 2008GoodGoodGoodGood24085.9
September 2006GoodGoodGoodGood94071.1
August 2004GoodGoodGoodGood98076.3
September 2002GoodGoodVery GoodGood68087.6
July 2000GoodGoodVery GoodGood68087.6
August 1998GoodGoodVery GoodGood67087.7
June 1996GoodGoodVery GoodGood35490.9
June 1994GoodGoodVery GoodGood137074.3
August 1992GoodGoodVery GoodGood181070.7
May 1990GoodVery GoodVery GoodGood181070.7

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.1,09078930010
Deck
Reinforced Concrete Top Flangesq. ft.4,3904,390000
Wearing Surfacessq. ft.3,6803,680000
Concrete Protective Coatingsq. ft.3,6803,680000
Substructure
Reinforced Concrete Abutmentlinear ft.70452500
Steel Pileeach1601600
Steel Protective Coatingsq. ft.470470000
Reinforced Concrete Pier Caplinear ft.110555500
Bearings
Elastomeric Bearingeach280280000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.3142813300
Steel Protective Coatingsq. ft.1,8801,880000