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 

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. ratingEvaluationDeckSuper.Sub.ADT
December 201686.0Not deficientSatisfactoryGoodSatisfactory128400
December 201486.1Not deficientSatisfactoryGoodSatisfactory127000
November 201286.1Not deficientSatisfactoryGoodSatisfactory127000
December 201086.1Not deficientSatisfactoryGoodSatisfactory127000
December 200886.1Not deficientSatisfactoryGoodGood127000
December 200685.9Not deficientSatisfactoryGoodGood129300
December 200485.9Not deficientSatisfactoryGoodGood129600
February 200386.1Not deficientGoodGoodSatisfactory126500
February 200186.2Not deficientGoodGoodGood126300
February 199986.9Not deficientGoodGoodGood118000
February 199789.2Not deficientGoodGoodGood94300
February 199588.1Not deficientGoodGoodGood103400
February 199388.1Not deficientGoodGoodGood103400
February 199188.7Not deficientGoodGoodGood94900