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N WELLS ST over MAIN BR CHICAGO RIV

Map 

Coordinates:
+41.88778, -87.63396
41°53'16" N, 87°38'02" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:N WELLS ST over MAIN BR CHICAGO RIV
Structure number:016605400000000
Old structure number:000016605404144 (from 1992 edition)
Location:400 W & 309 N
Purpose:Carries highway and railroad over waterway
Route classification:Collector (Urban) [17]
Length of largest span:268.1 ft. [81.7 m]
Total length:345.2 ft. [105.2 m]
Roadway width between curbs:38.1 ft. [11.6 m]
Deck width edge-to-edge:71.9 ft. [21.9 m]
Vertical clearance below bridge:16.1 ft. [4.9 m]
Owner:City or Municipal Highway Agency [04]
Year built:1922
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: October 2015 

Status:Posted for load [P]
Average daily traffic:4,400 [as of 2014]
Truck traffic:10% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Satisfactory [6 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: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: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:35.6 tons [32.4 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:65.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$1,821,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
October 201565.0Functionally obsoleteVery GoodSatisfactoryFair4400
June 201427.3Structurally deficientVery GoodGoodFair4400
December 201221.0Structurally deficientFairSeriousFair4900
December 201019.0Structurally deficientFairSeriousFair4900
December 200817.0Structurally deficientPoorSeriousFair8500
November 200646.0Structurally deficientFairPoorFair8500
September 200446.0Structurally deficientFairPoorFair9400
October 200246.0Structurally deficientFairPoorFair12109
November 200046.0Structurally deficientFairPoorFair12109
August 199846.0Structurally deficientFairPoorFair12109
May 199662.0Structurally deficientGoodPoorFair-
April 199462.0Structurally deficientGoodPoorSatisfactory-
September 199245.0Structurally deficientSeriousPoorSerious-
July 199149.0Structurally deficientFairPoorSerious-