70th Street over Cobbs Creek


+39.92480, -75.24570
39°55'29" N, 75°14'45" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:70th Street over Cobbs Creek
Structure number:000000000039249
Old structure number:677301022000180 (from 1992 edition)
Location:W of Cobbs Crk Pkwy 36D04
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:84.0 ft. [25.6 m]
Total length:96.1 ft. [29.3 m]
Roadway width between curbs:44.0 ft. [13.4 m]
Deck width edge-to-edge:62.3 ft. [19.0 m]
Skew angle:50°
Owner:City or Municipal Highway Agency [04]
Year built:1948
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Main span material:Concrete continuous [2]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Open Grating [3]
Wearing surface:Bituminous [6]

Latest Available Inspection: April 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:19,500 [as of 1976]
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:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank and embankment protection is severely undermined. River control devices have severe damage. Large deposits of debris are in the channel. [4]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Sufficiency rating:79.7
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$602,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2016FairFairFairFair1950079.7
April 2014FairFairFairFair1950079.7
April 2012FairFairGoodFair1950079.7
April 2010FairFairGoodFair1950079.7
April 2008FairFairGoodFair1950079.7
April 2006FairFairGoodFair1950079.7
April 2004FairFairGoodSatisfactory1950090.9
April 2002FairFairGoodSatisfactory1950090.9
April 2000FairFairGoodSatisfactory1950090.9
April 1998FairFairGoodSatisfactory1950090.9
April 1996FairFairGoodSatisfactory1950091.9
April 1994FairFairGoodSatisfactory1950093.0
April 1992FairFairFairGood1950081.5
April 1990FairFairFairGood1950081.5