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I-75 over CONRAIL RR

Map 

Coordinates:
+42.41492, -83.08527
42°24'54" N, 83°05'07" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I-75 over CONRAIL RR
Structure number:000000000011838
Old structure number:82182252000R080 (from 1992 edition)
Location:IN DETROIT
Purpose:Carries highway over railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:60.7 ft. [18.5 m]
Total length:220.2 ft. [67.1 m]
Roadway width between curbs:166.7 ft. [50.8 m]
Deck width edge-to-edge:173.6 ft. [52.9 m]
Vertical clearance below bridge:23.0 ft. [7.0 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1969
Year reconstructed:2003
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:4
Main spans material:Prestressed concrete [5]
Main spans design:Box Beam or girders - Single or Spread [06]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: June 2014 

Status:Open, no restriction [A]
Average daily traffic:174,074 [as of 2007]
Truck traffic:7% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Superior to present desirable criteria [9]
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:60.3 tons [54.8 metric tons]
Inventory rating:29.6 tons [26.9 metric tons]
Sufficiency rating:78.8

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
June 201478.8Not deficientGoodVery GoodGood174074
June 201278.8Not deficientGoodVery GoodGood174074
July 201081.0Not deficientGoodVery GoodGood174074
March 200881.0Not deficientVery GoodVery GoodGood174074
March 200681.0Not deficientVery GoodVery GoodGood183398
March 200485.0Not deficientExcellentExcellentGood211000
December 200257.0Not deficientFairFairPoor211000
September 200157.0Structurally deficientFairFairPoor211000
June 200057.0Structurally deficientFairFairPoor211000
September 199858.0Structurally deficientSatisfactoryFairPoor211000
September 199674.0Not deficientSatisfactoryGoodFair211000
October 199674.0Not deficientSatisfactoryGoodFair112600
October 199474.0Not deficientSatisfactoryGoodFair112600
August 199274.0Not deficientSatisfactoryGoodFair112600
July 199085.0Not deficientSatisfactoryVery GoodSatisfactory112600