N&S101- N280&N680 over I 280,I 680,US 101,STORY


+37.34000, -121.85167
37°20'24" N, 121°51'06" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:N&S101- N280&N680 over I 280,I 680,US 101,STORY
Structure number:37 0352H
Purpose:Carries highway over highway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:157.2 ft. [47.9 m]
Total length:8646.4 ft. [2635.3 m]
Roadway width between curbs:40.4 ft. [12.3 m]
Deck width edge-to-edge:43.6 ft. [13.3 m]
Vertical clearance above deck:17.7 ft. [5.4 m]
Vertical clearance below bridge:17.1 ft. [5.2 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1974
Year reconstructed:1982
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:48
Main spans material:Concrete continuous [2]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: February 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:40,000 [as of 1998]
Truck traffic:6% of total traffic
Deck condition:Fair [5 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:Superior to present desirable criteria [9]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Operating rating:92.6 tons [84.2 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:72.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
February 201772.0FairFairFairGoodFO40000
February 201573.1FairGoodGoodFairFO40000
February 201373.1FairGoodGoodFairFO40000
March 201173.1FairGoodGoodFairFO40000
March 200973.1FairGoodGoodFairFO40000
April 200773.1FairGoodGoodFairFO40000
March 200575.2FairGoodGoodFair-40000
March 200375.2FairGoodFairFair-40000
March 200184.8GoodGoodGoodGoodFO40000
March 199784.8GoodGoodGoodGoodFO40000
January 199585.6GoodGoodGoodGoodFO40000
March 199385.6GoodGoodGoodGoodFO40000
December 198985.6GoodVery GoodVery GoodVery GoodFO40000

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Prestressed Concrete Closed Web/Box Girderlinear ft.328328000
Reinforced Concrete Closed Web/Box Girderlinear ft.2,3761,57779900
Reinforced Concrete Top Flangesq. ft.32,27530,6751,60000
Concrete Protective Coatingsq. ft.29,77829,778000
Reinforced Concrete Columneach136135100
Reinforced Concrete Abutmentlinear ft.8484000
Reinforced Concrete Pileeach11000
Reinforced Concrete Pier Caplinear ft.33000
Strip Seal Jointlinear ft.296296000
Compression Jointlinear ft.1616000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.5,3705,370000