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:18.0 ft. [5.5 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 2016

Good/Fair/Poor Condition:Fair
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:Superior to present desirable criteria [9]
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]
Sufficiency rating:83.5
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$8,715,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
May 201683.5FairFairFairFair-8500
May 201479.4FairFairFairFairFO8500
May 201279.4FairFairFairFairFO8500
May 201076.6FairFairFairFairFO6000
May 200876.6FairFairFairFairFO6000
May 200676.6FairFairFairFairFO6000
May 200476.0FairFairFairFairFO6000
May 200276.0FairFairFairFairFO6000
May 200076.0FairFairFairFairFO6000
May 199876.0FairFairFairFairFO6000
May 199664.0FairFairFairFairFO6000
May 199464.2FairFairFairFairFO6000
May 199261.2FairFairFairFairFO6000
May 199061.2FairFairFairFairFO6000