SR 99 over N 50TH ST


+47.66510, -122.34734
47°39'54" N, 122°20'50" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SR 99 over N 50TH ST
Structure number:0001684A0000000
Location:9.2 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:42.0 ft. [12.8 m]
Total length:44.0 ft. [13.4 m]
Roadway width between curbs:65.0 ft. [19.8 m]
Deck width edge-to-edge:81.4 ft. [24.8 m]
Vertical clearance below bridge:13.8 ft. [4.2 m]
Owner:State Highway Agency [01]
Year built:1933
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Main span material:Concrete [1]
Main span design:Tee beam [04]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: March 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:44,242 [as of 2012]
Truck traffic:3% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Good [7 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: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:49.5 tons [45.0 metric tons]
Inventory rating:29.7 tons [27.0 metric tons]
Sufficiency rating:63.7

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
March 201663.7FairSatisfactoryFairGoodFO44242
March 201463.7FairSatisfactoryFairGoodFO44242
March 201263.6FairSatisfactoryFairGoodFO44972
May 201063.1FairSatisfactoryFairGoodFO48606
June 200863.8FairSatisfactoryFairGoodFO43806
June 200653.6FairSatisfactoryFairGoodFO48950
April 200466.2FairSatisfactorySatisfactoryGoodFO48950
June 200264.2FairSatisfactorySatisfactoryGoodFO48950
February 200063.2FairSatisfactorySatisfactoryGoodFO48950
October 199763.2FairSatisfactorySatisfactoryGoodFO48950
November 199547.8FairSatisfactorySatisfactoryGoodFO48950
May 199347.8FairSatisfactorySatisfactoryGoodFO48950
September 199148.4FairSatisfactorySatisfactoryGoodFO45250

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Reinforced Concrete Girder/Beamlinear ft.2522370150
Reinforced Concrete Decksq. ft.3,3003,292008
Wearing Surfacessq. ft.3,30003,30000
Reinforced Concrete Abutmentlinear ft.184184000
Open Jointlinear ft.130013000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.8888000
Reinforced Concrete Bridge Raillinear ft.8886020