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 2015 

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:Meets minimum tolerable limits to be left in place as is [4]
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:34.7 tons [31.5 metric tons]
Inventory rating:20.8 tons [18.9 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:51.5

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
June 201551.5Functionally obsoleteSatisfactorySatisfactorySatisfactory40492
June 201351.5Functionally obsoleteSatisfactorySatisfactorySatisfactory40492
July 201151.4Functionally obsoleteSatisfactorySatisfactorySatisfactory41161
July 200951.4Functionally obsoleteSatisfactorySatisfactorySatisfactory41271
August 200751.0Functionally obsoleteSatisfactorySatisfactorySatisfactory43392
September 200537.3Functionally obsoleteFairFairGood43392
November 200351.0Functionally obsoleteSatisfactorySatisfactoryGood43392
November 200140.1Functionally obsoleteSatisfactorySatisfactoryGood43392
November 199940.1Functionally obsoleteSatisfactorySatisfactoryGood43392
October 199744.9Functionally obsoleteSatisfactorySatisfactoryGood43392
November 199548.7Functionally obsoleteSatisfactorySatisfactoryGood43392
May 199349.6Functionally obsoleteSatisfactorySatisfactoryGood37600
April 199248.4Functionally obsoleteSatisfactorySatisfactoryGood45250