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M-3 (GRATIOT AVE) over GTW RR

Map

Coordinates:
+42.34728, -83.03584
42°20'50" N, 83°02'09" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:M-3 (GRATIOT AVE) over GTW RR
Structure number:000000000011326
Old structure number:82182072000R010 (from 1992 edition)
Location:IN DETROIT
Purpose:Carries highway over railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:44.0 ft. [13.4 m]
Total length:85.0 ft. [25.9 m]
Roadway width between curbs:89.9 ft. [27.4 m]
Deck width edge-to-edge:119.8 ft. [36.5 m]
Skew angle:34°
Owner:State Highway Agency [01]
Year built:1929
Year reconstructed:1970
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Number of main spans:2
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]

Latest Available Inspection: September 2017

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:19,649 [as of 2007]
Truck traffic:6% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:73.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2017PoorPoorFairSatisfactory1964973.0
September 2016PoorPoorFairSatisfactory1964973.0
September 2014PoorPoor-Satisfactory1964985.5
September 2012PoorPoor-Satisfactory1964945.6
September 2010FairFairFairGood1964937.6
September 2008FairFairFairGood1964937.6
September 2006FairSatisfactoryFairGood2052938.6
December 2005PoorPoorFairFair2052935.6
September 2003PoorPoorFairFair3300035.6
September 2001PoorPoorFairFair3300035.6
September 1999PoorPoorFairFair3300031.6
October 1997PoorPoorFairFair3300031.6
October 1995FairFairSatisfactoryFair2380033.3
December 1993FairGoodSatisfactorySatisfactory2380044.3
June 1991FairGoodSatisfactorySatisfactory2380051.4

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.8,9245,6502,0141,2600
Substructure
Reinforced Concrete Columneach1210200
Reinforced Concrete Abutmentlinear ft.95879416400
Reinforced Concrete Pier Caplinear ft.47335811500
Joints
Pourable Jointlinear ft.958400509490
Other Jointlinear ft.55802792790
Bearings
Enclosed/Concealed Bearingeach2424000
Deck
Reinforced Concrete Slabsq. ft.109,953076,96232,9910