30th Street over 30th Street (Lower)


+39.95400, -75.18360
39°57'14" N, 75°11'01" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:30th Street over 30th Street (Lower)
Structure number:000000000039139
Old structure number:677301003002670 (from 1992 edition)
Location:btw Market & Chesnt 28C12
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Local (Urban) [19]
Length of largest span:40.0 ft. [12.2 m]
Total length:956.1 ft. [291.4 m]
Roadway width between curbs:36.1 ft. [11.0 m]
Deck width edge-to-edge:62.0 ft. [18.9 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Owner:City or Municipal Highway Agency [04]
Year built:1931
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Number of main spans:29
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Not applicable [N]
Wearing surface:Bituminous [6]

Latest Available Inspection: May 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:8,500 [as of 2012]
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:83.5
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$8,715,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2016FairFairFairFair850083.5
May 2014FairFairFairFair850079.4
May 2012FairFairFairFair850079.4
May 2010FairFairFairFair600076.6
May 2008FairFairFairFair600076.6
May 2006FairFairFairFair600076.6
May 2004FairFairFairFair600076.0
May 2002FairFairFairFair600076.0
May 2000FairFairFairFair600076.0
May 1998FairFairFairFair600076.0
May 1996FairFairFairFair600064.0
May 1994FairFairFairFair600064.2
May 1992FairFairFairFair600061.2
May 1990FairFairFairFair600061.2