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 

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. ratingEvaluationDeckSuper.Sub.ADT
April 201679.7Not deficientFairFairFair19500
April 201479.7Not deficientFairFairFair19500
April 201279.7Not deficientFairGoodFair19500
April 201079.7Not deficientFairGoodFair19500
April 200879.7Not deficientFairGoodFair19500
April 200679.7Not deficientFairGoodFair19500
April 200490.9Not deficientFairGoodSatisfactory19500
April 200290.9Not deficientFairGoodSatisfactory19500
April 200090.9Not deficientFairGoodSatisfactory19500
April 199890.9Not deficientFairGoodSatisfactory19500
April 199691.9Not deficientFairGoodSatisfactory19500
April 199493.0Not deficientFairGoodSatisfactory19500
April 199281.5Not deficientFairFairGood19500
April 199081.5Not deficientFairFairGood19500