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M-3 (GRATIOT) over I-94

Map

Coordinates:
+42.39154, -83.00627
42°23'30" N, 83°00'23" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:M-3 (GRATIOT) over I-94
Structure number:000000000011245
Old structure number:82182025000S010 (from 1992 edition)
Location:IN DETROIT
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:104.0 ft. [31.7 m]
Total length:284.1 ft. [86.6 m]
Roadway width between curbs:89.9 ft. [27.4 m]
Deck width edge-to-edge:111.9 ft. [34.1 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:45°
Owner:State Highway Agency [01]
Year built:1958
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:4
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: October 2017

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:31,939 [as of 2007]
Truck traffic:3% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Satisfactory [6 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]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:47.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2017PoorPoorPoorSatisfactory3193947.0
October 2016PoorPoorPoorSatisfactory3193947.0
October 2015PoorSeriousPoorSatisfactory3193947.0
October 2014PoorSeriousFairSatisfactory3193962.0
November 2013PoorSeriousFairSatisfactory3193962.0
November 2012PoorSeriousSatisfactorySatisfactory3193972.0
December 2011PoorSeriousSatisfactoryGood3193972.0
December 2010PoorSeriousSatisfactoryGood3193972.0
December 2009PoorSeriousSatisfactoryGood3193917.0
September 2008PoorSeriousFairFair3193917.0
June 2007PoorSeriousFairFair3354017.0
March 2006PoorSeriousFairFair3354017.0
January 2005PoorSeriousFairFair2710017.0
November 2003PoorSeriousFairFair2710017.0
October 2002PoorSeriousFairFair2710017.0
August 2001PoorSeriousFairFair2710017.0
June 2000PoorSeriousFairFair2710017.0
August 1999PoorSeriousFairFair2710062.0
July 1998PoorSeriousPoorFair2710047.0
June 1997PoorPoorPoorFair2710047.0
June 1994PoorFairPoorSatisfactory2710049.0
June 1992PoorFairPoorSatisfactory2710049.0
May 1990FairSatisfactorySatisfactorySatisfactory2710077.0

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.18,5319,1994,6334,63366
Substructure
Reinforced Concrete Columneach3003000
Reinforced Concrete Abutmentlinear ft.1,02451251200
Reinforced Concrete Pier Caplinear ft.1,5391,0963281150
Joints
Strip Seal Jointlinear ft.1,04007093283
Pourable Jointlinear ft.518005153
Compression Jointlinear ft.1,040001,0400
Bearings
Movable Bearingeach8008000
Fixed Bearingeach8008000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,86493293200
Deck
Reinforced Concrete Slabsq. ft.342,314136,497171,15734,229431
Wearing Surfacessq. ft.275,621123,602137,81013,778431