+37.80833, -122.27500
37°48'30" N, 122°16'30" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:18TH ST over INTERSTATE 980
Structure number:33 0460
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Local (Urban) [19]
Length of largest span:119.1 ft. [36.3 m]
Total length:237.9 ft. [72.5 m]
Roadway width between curbs:54.1 ft. [16.5 m]
Deck width edge-to-edge:69.6 ft. [21.2 m]
Vertical clearance below bridge:16.7 ft. [5.1 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1973
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: May 2014 

Status:Open, no restriction [A]
Average daily traffic:5,000 [as of 1998]
Truck traffic:2% of total traffic
Deck condition:Satisfactory [6 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:Better than present minimum criteria [7]
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:68.1 tons [61.9 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:92.5

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
May 201492.5Not deficientSatisfactoryVery GoodGood5000
May 201292.5Not deficientSatisfactoryVery GoodGood5000
June 201092.5Not deficientSatisfactoryVery GoodGood5000
May 200892.5Not deficientSatisfactoryVery GoodGood5000
May 200692.5Not deficientSatisfactoryVery GoodGood5000
May 200492.5Not deficientSatisfactoryVery GoodGood5000
June 200292.5Not deficientSatisfactoryVery GoodGood5000
June 200092.5Not deficientSatisfactoryVery GoodGood5000
June 199885.5Structurally deficientPoorVery GoodGood5000
April 199588.6Functionally obsoleteGoodGoodGood5000
April 199388.6Functionally obsoleteGoodGoodGood5000
April 199088.6Functionally obsoleteGoodGoodGood5000