BIRD AVENUE over S280-87, I280, 87-N280


+37.32167, -121.89667
37°19'18" N, 121°53'48" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:BIRD AVENUE over S280-87, I280, 87-N280
Structure number:37 0267
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:149.9 ft. [45.7 m]
Total length:289.1 ft. [88.1 m]
Roadway width between curbs:100.1 ft. [30.5 m]
Deck width edge-to-edge:119.1 ft. [36.3 m]
Vertical clearance below bridge:17.1 ft. [5.2 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1969
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:2
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: February 2015 

Status:Open, no restriction [A]
Average daily traffic:15,300 [as of 2002]
Truck traffic:2% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Operating rating:85.9 tons [78.1 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:87.8

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
February 201587.8Not deficientVery GoodGoodVery Good15300
February 201387.8Not deficientGoodVery GoodGood15300
February 201184.6Structurally deficientPoorVery GoodGood15300
February 200984.6Structurally deficientPoorVery GoodGood15300
March 200786.8Not deficientFairVery GoodGood15300
March 200586.8Not deficientFairVery GoodGood15300
February 200394.0Not deficientFairVery GoodGood-
April 200194.0Not deficientFairVery GoodGood-
February 199995.0Not deficientSatisfactoryVery GoodGood-
September 199691.0Not deficientSatisfactoryVery GoodGood-
September 199491.0Not deficientGoodVery GoodVery Good-
October 199291.0Not deficientGoodVery GoodVery Good-
December 198991.0Not deficientGoodVery GoodVery Good-