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RANDOLPH ST over S.BR.CHICAGO RIVER

Map 

Coordinates:
+41.88444, -87.63819
41°53'04" N, 87°38'17" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:RANDOLPH ST over S.BR.CHICAGO RIVER
Structure number:016610200000000
Old structure number:000016610218814 (from 1992 edition)
Location:375 W & 150 N
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:212.9 ft. [64.9 m]
Total length:336.3 ft. [102.5 m]
Roadway width between curbs:47.9 ft. [14.6 m]
Deck width edge-to-edge:76.1 ft. [23.2 m]
Vertical clearance below bridge:21.0 ft. [6.4 m]
Owner:City or Municipal Highway Agency [04]
Year built:1984
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:Movable - Bascule [16]
Deck type:Open Grating [3]
Wearing surface:Other [9]

Latest Available Inspection: November 2014 

Status:Open, no restriction [A]
Average daily traffic:11,100 [as of 2014]
Truck traffic:17% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Pier/abutment protection:In place and functioning [2]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:48.8 tons [44.4 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:76.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$2,771,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
November 201476.0Functionally obsoleteSatisfactorySatisfactoryGood11100
December 201276.0Functionally obsoleteGoodGoodGood14600
December 201076.0Functionally obsoleteGoodGoodVery Good14700
September 200876.0Functionally obsoleteGoodGoodVery Good6300
September 200676.0Functionally obsoleteGoodGoodVery Good6300
September 200476.0Functionally obsoleteGoodGoodVery Good22009
October 200276.0Functionally obsoleteGoodGoodVery Good18300
November 200076.0Functionally obsoleteGoodGoodVery Good18300
August 199876.0Functionally obsoleteGoodGoodVery Good18300
May 199691.0Functionally obsoleteGoodGoodVery Good-
May 199491.0Functionally obsoleteGoodGoodGood-
September 199291.0Functionally obsoleteGoodGoodVery Good-
May 199191.0Not deficientVery GoodVery GoodVery Good-