SR 99 over N 63RD ST


+47.67424, -122.34725
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]
Operating rating:53.9 tons [49.0 metric tons]
Inventory rating:28.9 tons [26.3 metric tons]
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

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201766.5FairSatisfactorySatisfactorySatisfactoryFO40492
June 201551.5FairSatisfactorySatisfactorySatisfactoryFO40492
June 201351.5FairSatisfactorySatisfactorySatisfactoryFO40492
July 201151.4FairSatisfactorySatisfactorySatisfactoryFO41161
July 200951.4FairSatisfactorySatisfactorySatisfactoryFO41271
August 200751.0FairSatisfactorySatisfactorySatisfactoryFO43392
September 200537.3FairFairFairGoodFO43392
November 200351.0FairSatisfactorySatisfactoryGoodFO43392
November 200140.1FairSatisfactorySatisfactoryGoodFO43392
November 199940.1FairSatisfactorySatisfactoryGoodFO43392
October 199744.9FairSatisfactorySatisfactoryGoodFO43392
November 199548.7FairSatisfactorySatisfactoryGoodFO43392
May 199349.6FairSatisfactorySatisfactoryGoodFO37600
April 199248.4FairSatisfactorySatisfactoryGoodFO45250

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Reinforced Concrete Girder/Beamlinear ft.1451350100
Reinforced Concrete Top Flangesq. ft.4,4534,453000
Wearing Surfacessq. ft.4,45304,45300
Reinforced Concrete Columneach33000
Reinforced Concrete Abutmentlinear ft.236236000
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.4,4534,453000