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LASALLE STREET over TROLLEY CAR TUNNEL

Map

Coordinates:
+41.88888, -87.63253
41°53'20" N, 87°37'57" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LASALLE STREET over TROLLEY CAR TUNNEL
Structure number:016617600000000
Old structure number:000016617634097 (from 1992 edition)
Location:N. OF CHICAGO RIVER
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:55.4 ft. [16.9 m]
Total length:55.4 ft. [16.9 m]
Roadway width between curbs:25.6 ft. [7.8 m]
Deck width edge-to-edge:25.6 ft. [7.8 m]
Owner:City or Municipal Highway Agency [04]
Year built:1911
Year reconstructed:1942
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: January 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:19,500 [as of 2014]
Truck traffic:9% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:48.5 tons [44.1 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:81.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
January 201781.0FairVery GoodVery GoodSatisfactoryFO19500
January 201581.0FairVery GoodVery GoodSatisfactoryFO19500
January 201381.0FairVery GoodVery GoodSatisfactoryFO24900
January 201181.0FairVery GoodVery GoodSatisfactoryFO12450
June 200881.0FairExcellentExcellentSatisfactoryFO12050
June 200651.0PoorPoorPoorSatisfactorySD12050