SR 99 over N 63RD ST


+47.67416, -122.34722
47°40'27" N, 122°20'50" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SR 99 over N 63RD ST
Structure number:0001673A0000000
Location:9.8 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:50.9 ft. [15.5 m]
Total length:73.2 ft. [22.3 m]
Roadway width between curbs:61.0 ft. [18.6 m]
Deck width edge-to-edge:79.1 ft. [24.1 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:45°
Owner:State Highway Agency [01]
Year built:1932
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Number of main spans:2
Main spans material:Concrete continuous [2]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: June 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:40,492 [as of 2012]
Truck traffic:3% 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:Basically intolerable requiring high priority of replacement [2]
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]
Sufficiency rating:66.5
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$1,810,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2017FairSatisfactorySatisfactorySatisfactory4049266.5
June 2015FairSatisfactorySatisfactorySatisfactory4049251.5
June 2013FairSatisfactorySatisfactorySatisfactory4049251.5
July 2011FairSatisfactorySatisfactorySatisfactory4116151.4
July 2009FairSatisfactorySatisfactorySatisfactory4127151.4
August 2007FairSatisfactorySatisfactorySatisfactory4339251.0
September 2005FairFairFairGood4339237.3
November 2003FairSatisfactorySatisfactoryGood4339251.0
November 2001FairSatisfactorySatisfactoryGood4339240.1
November 1999FairSatisfactorySatisfactoryGood4339240.1
October 1997FairSatisfactorySatisfactoryGood4339244.9
November 1995FairSatisfactorySatisfactoryGood4339248.7
May 1993FairSatisfactorySatisfactoryGood3760049.6
April 1992FairSatisfactorySatisfactoryGood4525048.4

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Reinforced Concrete Girder/Beamlinear ft.1451320130
Reinforced Concrete Top Flangesq. ft.4,4534,453000
Wearing Surfacessq. ft.4,45304,45300
Reinforced Concrete Columneach33000
Reinforced Concrete Abutmentlinear ft.236234020
Reinforced Concrete Pier Caplinear ft.110108020
Open Jointlinear ft.184092920
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.146146000
Reinforced Concrete Bridge Raillinear ft.146146000
Reinforced Concrete Slabsq. ft.4,4534,450030