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18TH ST over S BR CHICAGO RIVER

Map 

Coordinates:
+41.85768, -87.63551
41°51'28" N, 87°38'08" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:18TH ST over S BR CHICAGO RIVER
Structure number:016601700000000
Old structure number:000016601727332 (from 1992 edition)
Location:301 W 18TH ST
Purpose:Carries highway over waterway
Route classification:Collector (Urban) [17]
Length of largest span:182.1 ft. [55.5 m]
Total length:279.9 ft. [85.3 m]
Roadway width between curbs:47.9 ft. [14.6 m]
Deck width edge-to-edge:74.2 ft. [22.6 m]
Vertical clearance below bridge:21.0 ft. [6.4 m]
Owner:City or Municipal Highway Agency [04]
Year built:1967
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: October 2014 

Status:Open, no restriction [A]
Average daily traffic:13,800 [as of 2014]
Truck traffic:11% of total traffic
Deck condition:Poor [4 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:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
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:48.8 tons [44.4 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:46.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$2,307,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
October 201446.0Structurally deficientPoorPoorFair13800
December 201234.0Structurally deficientPoorSeriousFair10900
December 201046.0Structurally deficientPoorPoorGood10900
October 200849.0Structurally deficientSeriousPoorGood7300
October 200675.0Functionally obsoleteFairSatisfactoryGood7300
September 200476.0Functionally obsoleteSatisfactorySatisfactoryGood8309
September 200276.0Functionally obsoleteSatisfactorySatisfactoryGood8309
November 200076.0Functionally obsoleteSatisfactorySatisfactoryGood8300
July 199876.0Functionally obsoleteSatisfactorySatisfactoryGood8300
May 199676.0Functionally obsoleteSatisfactorySatisfactoryGood8300
May 199478.0Not deficientSatisfactorySatisfactorySatisfactory8300
September 199278.0Not deficientSatisfactorySatisfactorySatisfactory8300
May 199278.0Not deficientSatisfactorySatisfactoryGood8300
May 199078.0Not deficientSatisfactoryGoodGood8300