Share:

31ST STREET over METRA ELEC & CN

Map 

Coordinates:
+41.83853, -87.61070
41°50'19" N, 87°36'39" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:31ST STREET over METRA ELEC & CN
Structure number:016617300000000
Old structure number:000016617327251 (from 1992 edition)
Location:3100 S & 628 E
Purpose:Carries highway over railroad
Route classification:Minor Arterial (Urban) [16]
Length of largest span:71.9 ft. [21.9 m]
Total length:278.2 ft. [84.8 m]
Roadway width between curbs:49.9 ft. [15.2 m]
Deck width edge-to-edge:80.1 ft. [24.4 m]
Vertical clearance below bridge:21.7 ft. [6.6 m]
Skew angle:11°
Owner:City or Municipal Highway Agency [04]
Year built:1921
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Number of main spans:4
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: July 2015 

Good/Fair/Poor Condition:Poor
Status:Open, would be posted or closed except for temporary shoring [D]
Average daily traffic:11,200 [as of 2014]
Truck traffic:9% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Serious [3 out of 9]
Structural appraisal:Basically intolerable requiring high priority of corrrective action [3]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:32.1 tons [29.2 metric tons]
Inventory rating:23.5 tons [21.4 metric tons]
Sufficiency rating:23.1
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$3,666,000

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201523.1PoorSatisfactoryFairSeriousSD11200
July 201323.1PoorSatisfactoryFairSeriousSD11200
July 201121.5PoorSatisfactoryFairSeriousSD8200
May 200921.5PoorSatisfactoryFairSeriousSD16200
April 200721.5PoorGoodFairSeriousSD16200
March 200521.5PoorGoodFairSeriousSD11600
March 200333.0PoorGoodFairSeriousSD12409
April 200033.0PoorGoodFairSeriousSD12400
December 199733.0PoorGoodPoorSeriousSD12400
December 199535.0PoorGoodPoorSeriousSD12400
December 199435.0PoorGoodPoorSeriousSD12400
September 199272.0FairSatisfactorySatisfactoryFair-12400
October 199083.0GoodGoodGoodGood-12400