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

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.7,2805,0761,6845200
Steel Protective Coatingsq. ft.90,25554,15227,0779,0260
Prestressed Concrete Girder/Beamlinear ft.9,4459,280152130
Reinforced Concrete Girder/Beamlinear ft.1,13441472000
Reinforced Concrete Decksq. ft.137,987136,6421,34500
Wearing Surfacessq. ft.96,02395,72330000
Reinforced Concrete Top Flangesq. ft.9,7659,765000
Wearing Surfacessq. ft.9,7659,765000
Reinforced Concrete Columneach8476710
Reinforced Concrete Pier Walllinear ft.2312201010
Reinforced Concrete Abutmentlinear ft.23110611240
Reinforced Concrete Pile Cap/Footinglinear ft.11000
Steel Pileeach20200
Reinforced Concrete Pier Caplinear ft.1,7271,6685450
Pourable Jointlinear ft.1,1065522220332
Compression Jointlinear ft.1,2391,239000
Elastomeric Bearingeach175175000
Movable Bearingeach7007000
Fixed Bearingeach5005000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.3,7172,992700250