+37.31222, -121.88472
37°18'44" N, 121°53'05" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:NB STATE ROUTE 87 over NB87,SB280,NB680 ON-RAMP
Structure number:37 0421R
Purpose:Carries highway over highway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:77.1 ft. [23.5 m]
Total length:186.0 ft. [56.7 m]
Roadway width between curbs:53.2 ft. [16.2 m]
Deck width edge-to-edge:56.8 ft. [17.3 m]
Vertical clearance below bridge:17.1 ft. [5.2 m]
Skew angle:43°
Owner:State Highway Agency [01]
Year built:1990
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:3
Main spans material:Prestressed concrete continuous [6]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: April 2015 

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:65,000 [as of 2009]
Truck traffic:3% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Equal to present minimum criteria [6]
Underclearances appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Operating rating:59.5 tons [54.1 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:93.9

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
April 201593.9GoodVery GoodVery GoodGood-65000
April 201393.9GoodGoodVery GoodGood-65000
April 201192.4PoorPoorVery GoodGood-47500
April 200992.4PoorPoorVery GoodGood-47500
July 200790.3PoorSeriousVery GoodGoodSD47500
June 200590.3PoorSeriousVery GoodGoodSD47500
January 200490.3PoorSeriousVery GoodGoodSD47500
January 200290.9PoorPoorVery GoodGoodSD52400
October 199994.1FairSatisfactoryVery GoodGood-52400
June 199893.0GoodGoodVery GoodGood-52400
October 199698.5GoodGoodVery GoodGood-5000
May 199399.0GoodGoodGoodVery Good--