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I-75 over CONRAIL RR

Map

Coordinates:
+42.41497, -83.08496
42°24'54" N, 83°05'06" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
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: May 2016

Good/Fair/Poor Condition:Good
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]
Sufficiency rating:78.8

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2016GoodGoodVery GoodGood17407478.8
June 2014GoodGoodVery GoodGood17407478.8
June 2012GoodGoodVery GoodGood17407478.8
July 2010GoodGoodVery GoodGood17407481.0
March 2008GoodVery GoodVery GoodGood17407481.0
March 2006GoodVery GoodVery GoodGood18339881.0
March 2004GoodExcellentExcellentGood21100085.0
December 2002PoorFairFairPoor21100057.0
September 2001PoorFairFairPoor21100057.0
June 2000PoorFairFairPoor21100057.0
September 1998PoorSatisfactoryFairPoor21100058.0
October 1996FairSatisfactoryGoodFair11260074.0
September 1996FairSatisfactoryGoodFair21100074.0
October 1994FairSatisfactoryGoodFair11260074.0
August 1992FairSatisfactoryGoodFair11260074.0
July 1990FairSatisfactoryVery GoodSatisfactory11260085.0

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Closed Web/Box Girderlinear ft.18,75018,750000
Deck
Reinforced Concrete Decksq. ft.410,794410,794000
Substructure
Reinforced Concrete Columneach3636000
Reinforced Concrete Abutmentlinear ft.1,1521,152000
Reinforced Concrete Pier Caplinear ft.1,7321,732000
Joints
Strip Seal Jointlinear ft.1,1381,138000
Bearings
Elastomeric Bearingeach208208000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.2,8902,890000