Share:

HWY 485 over SKIPANON RIVER

Map

Coordinates:
+46.14946, -123.92414
46°08'58" N, 123°55'27" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:HWY 485 over SKIPANON RIVER
Structure number:01400 104Y00467
Location:040 MI S ASTORIA
Purpose:Carries highway over waterway
Route classification:Collector (Urban) [17]
Length of largest span:45.9 ft. [14.0 m]
Total length:129.9 ft. [39.6 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:27.2 ft. [8.3 m]
Owner:State Highway Agency [01]
Year built:1929
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:M 13.5 / H 15 [2]
Main span material:Steel [3]
Main span design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: March 2018

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:2,289 [as of 2010]
Truck traffic:4% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Basically intolerable requiring high priority of corrrective action [3]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is being eroded. River control devices and/or embankment have major damage. Trees and rush restrict the channel. [5]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour conditions; field review indicates action is required. [4]
Sufficiency rating:26.7
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$665,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2018PoorPoorFairSatisfactory228926.7
March 2017PoorPoorFairSatisfactory228926.7
January 2017PoorPoorFairSatisfactory228936.7
March 2015FairFairFairSatisfactory228938.8
March 2013FairFairFairSatisfactory228938.8
March 2011FairFairFairSatisfactory228938.8
March 2009FairFairFairSatisfactory228938.4
March 2007FairFairFairSatisfactory220038.5
March 2005FairFairFairSatisfactory220038.3
June 2003FairFairFairGood220038.3
March 2003FairFairFairGood220038.3
April 2001FairFairFairGood210038.3
March 1999FairSatisfactoryFairGood210039.3
March 1997FairSatisfactoryFairGood170041.6
March 1995FairSatisfactoryFairGood170047.9
March 1993FairSatisfactorySatisfactoryGood170065.2
September 1991FairSatisfactorySatisfactoryGood275062.9

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.28878158520
Steel Protective Coatingsq. ft.1,57001,3592110
Reinforced Concrete Girder/Beamlinear ft.36834310150
Steel Floor Beamlinear ft.5200520
Steel Protective Coatingsq. ft.266011650100
Reinforced Concrete Floor Beamlinear ft.129030
Deck
Reinforced Concrete Top Flangesq. ft.2,4602,4500100
Wearing Surfacessq. ft.2,1602,156040
Substructure
Reinforced Concrete Columneach84400
Reinforced Concrete Abutmentlinear ft.5555000
Reinforced Concrete Pile Cap/Footinglinear ft.6006000
Reinforced Concrete Pier Caplinear ft.5550050
Deck
Corrugated or Orthotropic Decksq. ft.945975173310
Wearing Surfacessq. ft.945094500
Steel Protective Coatingsq. ft.9450353442150
Joints
Other Jointlinear ft.108108000
Bearings
Fixed Bearingeach20020
Steel Protective Coatingsq. ft.1600160
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.7407400
Steel Protective Coatingsq. ft.22501251000
Reinforced Concrete Bridge Raillinear ft.18815023150