SR 99 over N 46TH ST


+47.66191, -122.34734
47°39'43" N, 122°20'50" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SR 99 over N 46TH ST
Structure number:0001669A0000000
Location:9.0 N JCT SR 509
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:51.8 ft. [15.8 m]
Total length:91.9 ft. [28.0 m]
Roadway width between curbs:76.1 ft. [23.2 m]
Deck width edge-to-edge:96.5 ft. [29.4 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Owner:State Highway Agency [01]
Year built:1933
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Number of main spans:3
Main spans material:Concrete continuous [2]
Main spans design:Tee beam [04]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: March 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:45,878 [as of 2016]
Truck traffic:3% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:70.4
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$3,128,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2018FairGoodSatisfactorySatisfactory4587870.4
March 2016FairGoodSatisfactorySatisfactory4849469.7
March 2014FairGoodSatisfactorySatisfactory4849469.7
March 2012FairGoodSatisfactorySatisfactory4929469.6
May 2010FairGoodSatisfactorySatisfactory5420466.8
June 2008FairGoodSatisfactoryGood5404269.0
June 2006FairGoodSatisfactoryGood4525070.1
April 2004FairGoodSatisfactoryGood4525070.1
June 2002FairGoodSatisfactoryGood4525070.1
February 2000FairSatisfactorySatisfactoryGood4525070.2
May 1996FairSatisfactorySatisfactoryGood4525060.1
December 1994FairSatisfactorySatisfactoryGood4525060.1
April 1992FairSatisfactorySatisfactoryGood4525048.4

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Reinforced Concrete Girder/Beamlinear ft.8107780320
Reinforced Concrete Decksq. ft.7,3607,360000
Wearing Surfacessq. ft.7,36007,35820
Reinforced Concrete Columneach3633030
Reinforced Concrete Abutmentlinear ft.192186060
Reinforced Concrete Pier Caplinear ft.8484000
Pourable Jointlinear ft.192009696
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.184184000
Reinforced Concrete Bridge Raillinear ft.276276000