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 2018

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 2018FairFairFairFair1950079.7
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