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INTERSTATE 580 over WEBSTER STREET

Map 

Coordinates:
+37.82333, -122.26000
37°49'24" N, 122°15'36" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:INTERSTATE 580 over WEBSTER STREET
Structure number:33 0296
Location:04-ALA-580-44.81-OAK
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:68.9 ft. [21.0 m]
Total length:141.1 ft. [43.0 m]
Roadway width between curbs:183.4 ft. [55.9 m]
Deck width edge-to-edge:186.0 ft. [56.7 m]
Vertical clearance below bridge:18.4 ft. [5.6 m]
Skew angle:24°
Owner:State Highway Agency [01]
Year built:1961
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Concrete [1]
Main span design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: August 2014 

Status:Open, no restriction [A]
Average daily traffic:182,000 [as of 2009]
Truck traffic:1% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:77.7 tons [70.6 metric tons]
Inventory rating:46.6 tons [42.4 metric tons]
Sufficiency rating:75.0

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 201475.0Not deficientVery GoodVery GoodVery Good182000
August 201275.0Not deficientGoodGoodGood182000
March 201178.0Not deficientGoodGoodGood356000
August 200878.0Not deficientGoodGoodGood197000
December 200478.0Not deficientGoodGoodGood197000
October 200278.0Not deficientGoodGoodGood197000
October 200073.0Structurally deficientSeriousGoodGood192500
October 199878.0Not deficientGoodGoodGood192500
December 199478.0Not deficientGoodGoodGood188100
March 199378.0Not deficientGoodGoodGood207100
November 198976.0Functionally obsoleteGoodGoodVery Good207100