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