+41.85741, -87.64983
41°51'27" N, 87°38'59" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:18TH ST over RR TRACKS
Structure number:016611600000000
Old structure number:000016611627308 (from 1992 edition)
Location:1800S.& 300W.TO 200W
Purpose:Carries highway over railroad
Route classification:Collector (Urban) [17]
Length of largest span:109.3 ft. [33.3 m]
Total length:519.7 ft. [158.4 m]
Roadway width between curbs:47.9 ft. [14.6 m]
Deck width edge-to-edge:65.9 ft. [20.1 m]
Vertical clearance below bridge:18.0 ft. [5.5 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]
Number of main spans:7
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: May 2015 

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:Fair [5 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]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:53.5 tons [48.6 metric tons]
Inventory rating:32.1 tons [29.2 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:61.1
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$737,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
May 201561.1Structurally deficientPoorFairFair13800
May 201361.1Structurally deficientPoorFairFair13800
June 201160.8Structurally deficientPoorFairFair10900
June 200960.8Structurally deficientPoorFairFair7300
January 200746.8Structurally deficientFairFairPoor7300
January 200547.8Structurally deficientSatisfactoryFairPoor8309
January 200350.0Structurally deficientSatisfactoryFairPoor8309
January 200150.0Structurally deficientSatisfactoryFairPoor8309
October 199866.0Functionally obsoleteSatisfactoryFairFair8300
September 199666.0Functionally obsoleteSatisfactoryFairFair8300
October 199463.0Functionally obsoleteSatisfactorySatisfactoryFair8300
September 199279.0Functionally obsoleteGoodSatisfactorySatisfactory8300
October 199079.0Functionally obsoleteGoodGoodGood8300