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CORTLAND ST over N BR CHICAGO RIV

Map 

Coordinates:
+41.91702, -87.66404
41°55'01" N, 87°39'51" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:CORTLAND ST over N BR CHICAGO RIV
Structure number:016601100000000
Old structure number:000016601126625 (from 1992 edition)
Location:1440 W CORTLAND
Purpose:Carries highway over waterway
Route classification:Collector (Urban) [17]
Length of largest span:128.0 ft. [39.0 m]
Total length:216.9 ft. [66.1 m]
Roadway width between curbs:36.1 ft. [11.0 m]
Deck width edge-to-edge:36.1 ft. [11.0 m]
Vertical clearance above deck:16.1 ft. [4.9 m]
Vertical clearance below bridge:16.1 ft. [4.9 m]
Owner:City or Municipal Highway Agency [04]
Year built:1902
Year reconstructed:1997
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
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: December 2015 

Status:Open, no restriction [A]
Average daily traffic:9,900 [as of 2014]
Truck traffic:9% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Channel protection:Bank protection is being eroded. River control devices and/or embankment have major damage. Trees and rush restrict the channel. [5]
Pier/abutment protection:None present but re-evaluation suggested [5]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:37.7 tons [34.3 metric tons]
Inventory rating:22.8 tons [20.7 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:36.8
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$1,031,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
December 201536.8Structurally deficientGoodPoorFair9900
September 201336.8Structurally deficientSatisfactoryPoorFair9900
September 201137.9Structurally deficientGoodPoorFair13200
January 201046.6Structurally deficientGoodPoorGood13200
October 200746.1Structurally deficientGoodPoorGood18400
November 200547.8Structurally deficientGoodPoorGood1509
October 200363.9Functionally obsoleteGoodFairGood1509
October 200173.9Functionally obsoleteGoodSatisfactoryGood1009
September 199973.9Functionally obsoleteGoodSatisfactoryGood1009
September 199773.9Functionally obsoleteGoodSatisfactoryGood1009
September 199549.0Structurally deficientFairSeriousSatisfactory-
March 199477.0Functionally obsoleteGoodFairSatisfactory-
September 199274.0Structurally deficientPoorSatisfactoryFair-
August 199147.0Structurally deficientPoorSeriousPoor-