SR 4 over COWLITZ R / RR / SR 411


+46.14729, -122.91797
46°08'50" N, 122°55'05" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SR 4 over COWLITZ R / RR / SR 411
Structure number:0003717A0000000
Location:0.1 E JCT SR 411 SP
Purpose:Carries highway and pedestrian walkway over highway, waterway, and railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:255.9 ft. [78.0 m]
Total length:1710.1 ft. [521.2 m]
Roadway width between curbs:56.1 ft. [17.1 m]
Deck width edge-to-edge:58.1 ft. [17.7 m]
Vertical clearance above deck:15.1 ft. [4.6 m]
Vertical clearance below bridge:62.3 ft. [19.0 m]
Owner:State Highway Agency [01]
Year built:1951
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Steel continuous [4]
Main spans design:Truss - Thru [10]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: September 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:18,057 [as of 2016]
Truck traffic:2% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:51.7
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$39,672,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2018FairSatisfactoryFairFair1805751.7
September 2016FairSatisfactoryFairFair1901947.3
September 2014FairSatisfactoryFairFair1901947.3
September 2012FairSatisfactorySatisfactoryFair2067346.9
September 2010FairSatisfactorySatisfactoryFair2211953.0
August 2008FairSatisfactorySatisfactoryFair2211953.0
September 2006FairFairSatisfactoryFair2802648.0
March 2004FairFairSatisfactoryFair2802648.0
March 2002FairSatisfactorySatisfactorySatisfactory2802661.0
June 2000FairSatisfactorySatisfactorySatisfactory2802656.9
April 1998FairSatisfactoryGoodSatisfactory2987774.5
March 1996FairSatisfactoryGoodSatisfactory2987772.0
October 1994FairSatisfactoryGoodSatisfactory2987773.0
November 1992FairSatisfactoryGoodSatisfactory2800073.0
November 1990FairSatisfactoryGoodSatisfactory2280077.4

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Reinforced Concrete Girder/Beamlinear ft.7,4907,488020
Steel Stringerlinear ft.5,1205,113340
Steel Protective Coatingsq. ft.52,87215,326037,012534
Reinforced Concrete Decksq. ft.95,76095,62013505
Steel Trusslinear ft.1,28092803520
Steel Protective Coatingsq. ft.132,18238,315092,5301,337
Steel Floor Beamlinear ft.1,23947207670
Steel Protective Coatingsq. ft.12,7943,70808,956130
Steel Gusset Plateeach8080000
Reinforced Concrete Columneach1331182130
Reinforced Concrete Pier Walllinear ft.280279010
Reinforced Concrete Abutmentlinear ft.116115010
Pourable Jointlinear ft.112000112
Open Jointlinear ft.1,1760728224224
Assembly without Seal Jointlinear ft.560056000
Movable Bearingeach2323000
Enclosed/Concealed Bearingeach44000
Fixed Bearingeach22000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,2801,2160640
Reinforced Concrete Bridge Raillinear ft.2,1402,0805145