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N LASALLE ST over MAIN BR CHICAGO RIV

Map

Coordinates:
+41.88780, -87.63242
41°53'16" N, 87°37'57" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:N LASALLE ST over MAIN BR CHICAGO RIV
Structure number:016603200000000
Old structure number:000016603226800 (from 1992 edition)
Location:307 N LASALLE ST.
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:242.1 ft. [73.8 m]
Total length:347.1 ft. [105.8 m]
Roadway width between curbs:56.1 ft. [17.1 m]
Deck width edge-to-edge:86.0 ft. [26.2 m]
Vertical clearance below bridge:16.1 ft. [4.9 m]
Owner:City or Municipal Highway Agency [04]
Year built:1928
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Main span material:Steel [3]
Main span design:Movable - Bascule [16]
Deck type:Open Grating [3]
Wearing surface:Other [9]

Latest Available Inspection: September 2015

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:19,500 [as of 2014]
Truck traffic:9% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Serious [3 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Basically intolerable requiring high priority of corrrective action [3]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:In place but in a deteriorated condition [3]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:45.2 tons [41.1 metric tons]
Inventory rating:27.1 tons [24.6 metric tons]
Sufficiency rating:13.9
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$2,612,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
September 201513.9PoorPoorSeriousFairSD19500
October 201313.9PoorPoorSeriousFairSD19500
October 201122.2PoorPoorSeriousFairSD12450
October 200922.2PoorPoorSeriousFairSD12450
October 200741.8PoorPoorPoorFairSD12050
November 200541.8PoorPoorPoorFairSD12050
October 200343.1PoorPoorPoorFairSD3004
October 200145.7PoorPoorPoorFairSD3004
August 199948.6PoorSeriousPoorFairSD3004
August 199748.6PoorSeriousPoorFairSD3004
September 199545.5PoorPoorPoorFairSD3004
March 199463.6FairFairFairFairFO3004
September 199263.6FairFairFairFairFO3004
June 199163.3FairFairFairFairFO6009