+45.54284, -122.67389
45°32'34" N, 122°40'26" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-5 (HWY 001) NB over FREMONT VIADUCT
Structure number:N8958A001 30299
Location:1.5 MI N OF BURNSIDE BR
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:140.1 ft. [42.7 m]
Total length:1997.1 ft. [608.7 m]
Roadway width between curbs:36.7 ft. [11.2 m]
Deck width edge-to-edge:41.3 ft. [12.6 m]
Vertical clearance above deck:16.1 ft. [4.9 m]
Vertical clearance below bridge:11.2 ft. [3.4 m]
Owner:State Highway Agency [01]
Year built:1963
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:5
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]

Latest Available Inspection: February 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:148,000 [as of 2014]
Truck traffic:12% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Basically intolerable requiring high priority of corrrective action [3]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:13.5 tons [12.3 metric tons]
Inventory rating:10.7 tons [9.7 metric tons]
Sufficiency rating:39.8
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$13,244,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
February 201739.8FairFairGoodSatisfactoryFO148000
February 201533.8FairFairGoodSatisfactoryFO66761
February 201385.3FairFairGoodSatisfactoryFO66761
June 201185.3FairFairGoodSatisfactoryFO66761
February 200985.3FairFairGoodGoodFO66761
February 200785.7FairFairGoodGoodFO62850
February 200585.3FairFairSatisfactoryGoodFO66000
February 200364.5FairFairSatisfactoryGoodFO73000
February 200165.0FairFairSatisfactoryGoodFO69230
February 199966.1GoodGoodGoodVery GoodFO69230
February 199766.6GoodGoodGoodVery GoodFO65650
February 199569.1GoodGoodGoodVery GoodFO57300
February 199369.1GoodGoodGoodVery GoodFO57300
February 199169.3GoodGoodGoodVery GoodFO55000

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.3,48403,48400
Steel Protective Coatingsq. ft.55,783050,2055,5780
Prestressed Concrete Girder/Beamlinear ft.8,2087,81139700
Reinforced Concrete Girder/Beamlinear ft.82266815400
Reinforced Concrete Decksq. ft.88,02588,025000
Wearing Surfacessq. ft.86,61586,615000
Reinforced Concrete Top Flangesq. ft.5,7505,750000
Wearing Surfacessq. ft.5,4105,410000
Reinforced Concrete Columneach5855300
Reinforced Concrete Abutmentlinear ft.1101001000
Reinforced Concrete Pier Caplinear ft.1,18922896100
Strip Seal Jointlinear ft.370037000
Compression Jointlinear ft.33513520000
Other Jointlinear ft.110110000
Elastomeric Bearingeach239239000
Movable Bearingeach3203200
Fixed Bearingeach3203200
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.3,7492,6241,12500