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BRYDEN CANYON ROAD over SNAKE RIVER;HIGH BRIDGE

Map

Coordinates:
+46.39667, -117.04322
46°23'48" N, 117°02'36" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:BRYDEN CANYON ROAD over SNAKE RIVER;HIGH BRIDGE
Structure number:000000000021495
Location:IN LEWISTON;BRYDEN EXT
Purpose:Carries highway and pedestrian walkway over highway and waterway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:609.9 ft. [185.9 m]
Total length:1866.2 ft. [568.8 m]
Roadway width between curbs:53.8 ft. [16.4 m]
Deck width edge-to-edge:69.9 ft. [21.3 m]
Vertical clearance below bridge:62.3 ft. [19.0 m]
Owner:County Highway Agency [02]
Year built:1982
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:5
Main spans material:Prestressed concrete continuous [6]
Main spans design:Box Beam or girders - Single or Spread [06]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: September 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:21,000 [as of 2016]
Truck traffic:7% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 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]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Pier/abutment protection:In place but re-evaluation of design suggested [4]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:73.4
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$28,634,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2018FairSatisfactorySatisfactorySatisfactory2100073.4
September 2016FairSatisfactorySatisfactorySatisfactory2100073.4
September 2014PoorSatisfactorySatisfactoryPoor1750043.3
September 2012PoorSatisfactorySatisfactoryPoor2100041.1
September 2010PoorGoodGoodPoor2400039.3
September 2008PoorVery GoodGoodPoor2400039.3
October 2006GoodVery GoodGoodGood2400072.3
October 2004GoodVery GoodGoodGood2300072.7
October 2002GoodVery GoodGoodGood2100073.4
November 2000GoodVery GoodGoodGood1650086.9
November 1999FairVery GoodSatisfactorySatisfactory1650086.9
November 1997FairVery GoodSatisfactorySatisfactory1100088.6
November 1995FairVery GoodSatisfactorySatisfactory940088.9
November 1993FairVery GoodSatisfactorySatisfactory940089.9
November 1991FairVery GoodSatisfactorySatisfactory940088.9

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Closed Web/Box Girderlinear ft.1,7491,3681742070
Deck
Prestressed Concrete Top Flangesq. ft.122,300122,300000
Wearing Surfacessq. ft.94,00090,5003,50000
Substructure
Reinforced Concrete Pier Walllinear ft.270270000
Reinforced Concrete Abutmentlinear ft.32059681930
Reinforced Concrete Pile Cap/Footinglinear ft.90045450
Joints
Strip Seal Jointlinear ft.1410411000
Bearings
Movable Bearingeach44000
Steel Protective Coatingsq. ft.44000
Enclosed/Concealed Bearingeach44000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.3,7323,15757500