30th Street over 30th Street (Lower)

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:30TH STREET 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:13.1 ft. [4.0 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 2014 

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:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Operating rating:59.8 tons [54.4 metric tons]
Inventory rating:31.9 tons [29.0 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:79.4
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$9,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
May 201479.4Functionally obsoleteFairFairFair8500
May 201279.4Functionally obsoleteFairFairFair8500
May 201076.6Functionally obsoleteFairFairFair6000
May 200876.6Functionally obsoleteFairFairFair6000
May 200676.6Functionally obsoleteFairFairFair6000
May 200476.0Functionally obsoleteFairFairFair6000
May 200276.0Functionally obsoleteFairFairFair6000
May 200076.0Functionally obsoleteFairFairFair6000
May 199876.0Functionally obsoleteFairFairFair6000
May 199664.0Functionally obsoleteFairFairFair6000
May 199464.2Functionally obsoleteFairFairFair6000
May 199261.2Functionally obsoleteFairFairFair6000
May 199061.2Functionally obsoleteFairFairFair6000