I-5 (HWY 001) over COL SLOUGH & HWY 1 CONN


+45.58413, -122.67902
45°35'03" N, 122°40'44" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I-5 (HWY 001) over COL SLOUGH & HWY 1 CONN
Structure number:08883 001 30622
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:104.0 ft. [31.7 m]
Total length:1238.9 ft. [377.6 m]
Roadway width between curbs:109.9 ft. [33.5 m]
Deck width edge-to-edge:115.5 ft. [35.2 m]
Vertical clearance below bridge:21.3 ft. [6.5 m]
Skew angle:17°
Owner:State Highway Agency [01]
Year built:1964
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:12
Main spans material:Prestressed concrete continuous [6]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: December 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:91,400 [as of 2014]
Truck traffic:10% 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:Superior to present desirable criteria [9]
Underclearances appraisal:Superior to present desirable criteria [9]
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]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:57.9 tons [52.6 metric tons]
Inventory rating:35.0 tons [31.8 metric tons]
Sufficiency rating:88.3

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
December 201688.3FairSatisfactorySatisfactorySatisfactory-91400
December 201488.2FairSatisfactorySatisfactorySatisfactory-91700
January 201381.6FairSatisfactorySatisfactorySatisfactory-91700
December 201081.4FairSatisfactorySatisfactorySatisfactory-93900
December 200878.9FairSatisfactorySatisfactorySatisfactory-93900
December 200678.9FairSatisfactorySatisfactorySatisfactory-99400
December 200479.0FairSatisfactorySatisfactorySatisfactory-94900
February 200379.0FairGoodSatisfactoryGood-92400
February 200180.0FairGoodSatisfactoryGood-91800
February 199980.0GoodGoodGoodGood-87100
February 199780.0GoodGoodGoodGood-87100
February 199580.0GoodGoodGoodGood-73100
February 199380.0GoodGoodGoodGood-73100
February 199180.0GoodGoodGoodGood-70500