I-5 (HWY 001) over OREGON SLOUGH


+45.60767, -122.68143
45°36'28" N, 122°40'53" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-5 (HWY 001) over OREGON SLOUGH
Structure number:16526 001 30759
Purpose:Carries highway and pedestrian walkway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:230.0 ft. [70.1 m]
Total length:1325.2 ft. [403.9 m]
Roadway width between curbs:129.9 ft. [39.6 m]
Deck width edge-to-edge:147.3 ft. [44.9 m]
Vertical clearance below bridge:40.0 ft. [12.2 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1987
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 22.5 / HS 25 [9]
Number of main spans:9
Main spans material:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: December 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:128,400 [as of 2014]
Truck traffic:10% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Better than present minimum criteria [7]
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]
Operating rating:49.5 tons [45.0 metric tons]
Inventory rating:38.2 tons [34.7 metric tons]
Sufficiency rating:86.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
December 201686.0FairSatisfactoryGoodSatisfactory-128400
December 201486.1FairSatisfactoryGoodSatisfactory-127000
November 201286.1FairSatisfactoryGoodSatisfactory-127000
December 201086.1FairSatisfactoryGoodSatisfactory-127000
December 200886.1FairSatisfactoryGoodGood-127000
December 200685.9FairSatisfactoryGoodGood-129300
December 200485.9FairSatisfactoryGoodGood-129600
February 200386.1FairGoodGoodSatisfactory-126500
February 200186.2GoodGoodGoodGood-126300
February 199986.9GoodGoodGoodGood-118000
February 199789.2GoodGoodGoodGood-94300
February 199588.1GoodGoodGoodGood-103400
February 199388.1GoodGoodGoodGood-103400
February 199188.7GoodGoodGoodGood-94900

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Prestressed Concrete Closed Web/Box Girderlinear ft.4,3203,84004800
Prestressed Concrete Girder/Beamlinear ft.22,41422,3833010
Reinforced Concrete Decksq. ft.160,729158,9852641,4800
Reinforced Concrete Top Flangesq. ft.35,35332,993622,2980
Reinforced Concrete Columneach3030000
Reinforced Concrete Abutmentlinear ft.310302800
Reinforced Concrete Pile Cap/Footinglinear ft.3002138700
Reinforced Concrete Pier Caplinear ft.1,1731,1046900
Strip Seal Jointlinear ft.5911353280128
Open Jointlinear ft.147147000
Other Jointlinear ft.163001630
Elastomeric Bearingeach330330000
Movable Bearingeach4205289
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,3251,3071800
Steel Protective Coatingsq. ft.8,2166,1622,05400
Reinforced Concrete Bridge Raillinear ft.3,9753,71126400