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7 MI RD over M-39

Map

Coordinates:
+42.43002, -83.21942
42°25'48" N, 83°13'10" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:7 MI RD over M-39
Structure number:000000000011711
Old structure number:82182193000S080 (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:53.2 ft. [16.2 m]
Total length:108.6 ft. [33.1 m]
Roadway width between curbs:113.9 ft. [34.7 m]
Deck width edge-to-edge:135.2 ft. [41.2 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Owner:State Highway Agency [01]
Year built:1963
Year reconstructed:2010
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:2
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: February 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:30,550 [as of 1978]
Deck condition:Excellent [9 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Better than present minimum criteria [7]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:64.1 tons [58.3 metric tons]
Inventory rating:38.4 tons [34.9 metric tons]
Sufficiency rating:96.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
February 201696.0FairExcellentSatisfactoryGood-30550
February 201496.0FairExcellentSatisfactoryGood-30550
February 201295.0FairExcellentSatisfactoryGood-30550
September 201195.0FairExcellentSatisfactorySatisfactory-30550
October 200979.0PoorSeriousSatisfactoryFairSD30550
January 200979.0PoorSeriousSatisfactoryFairSD30550
October 200790.0PoorSeriousSatisfactorySatisfactorySD30550
September 200690.0PoorSeriousSatisfactorySatisfactorySD30550
June 200590.0PoorSeriousGoodSatisfactorySD30550
February 200490.0PoorSeriousGoodSatisfactorySD30550
November 200290.0PoorSeriousGoodSatisfactorySD30550
August 200190.0PoorSeriousGoodSatisfactorySD30550
June 200090.0PoorSeriousGoodSatisfactorySD30550
July 199892.0PoorPoorGoodGoodSD30550
August 199692.0PoorPoorSatisfactoryGoodSD30550
August 199494.0FairFairSatisfactoryGoodFO30550
June 199295.0FairSatisfactoryGoodGoodFO30550
May 199095.0FairSatisfactoryVery GoodGoodFO30550

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.2,3481,1481,0002000
Steel Protective Coatingsq. ft.19,69419,694000
Deck
Reinforced Concrete Decksq. ft.14,66514,665000
Substructure
Reinforced Concrete Columneach1010000
Concrete Protective Coatingsq. ft.3,9903,990000
Reinforced Concrete Abutmentlinear ft.266266000
Concrete Protective Coatingsq. ft.3,9903,990000
Reinforced Concrete Pier Caplinear ft.133133000
Concrete Protective Coatingsq. ft.1,7291,729000
Joints
Strip Seal Jointlinear ft.216021600
Pourable Jointlinear ft.216021600
Bearings
Movable Bearingeach4444000
Fixed Bearingeach2222000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.216216000
Concrete Protective Coatingsq. ft.1,0581,058000