70th Street over Cobbs Creek


+39.92491, -75.24571
39°55'30" 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]
Operating rating:63.9 tons [58.1 metric tons]
Inventory rating:31.9 tons [29.0 metric tons]
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 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
April 201679.7FairFairFairFair-19500
April 201479.7FairFairFairFair-19500
April 201279.7FairFairGoodFair-19500
April 201079.7FairFairGoodFair-19500
April 200879.7FairFairGoodFair-19500
April 200679.7FairFairGoodFair-19500
April 200490.9FairFairGoodSatisfactory-19500
April 200290.9FairFairGoodSatisfactory-19500
April 200090.9FairFairGoodSatisfactory-19500
April 199890.9FairFairGoodSatisfactory-19500
April 199691.9FairFairGoodSatisfactory-19500
April 199493.0FairFairGoodSatisfactory-19500
April 199281.5FairFairFairGood-19500
April 199081.5FairFairFairGood-19500