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7 MI RD over I-75

Map 

Coordinates:
+42.43248, -83.09465
42°25'57" N, 83°05'41" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:7 MI RD over I-75
Structure number:000000000011847
Old structure number:82182252000S070 (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:74.8 ft. [22.8 m]
Total length:219.8 ft. [67.0 m]
Roadway width between curbs:47.9 ft. [14.6 m]
Deck width edge-to-edge:70.2 ft. [21.4 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1967
Year reconstructed:2003
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: May 2014 

Status:Open, no restriction [A]
Average daily traffic:16,738 [as of 2010]
Deck condition:Very Good [8 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
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:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:73.8 tons [67.1 metric tons]
Inventory rating:44.2 tons [40.2 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:77.0
Recommended work:Bridge deck replacement with only incidental widening. [37]

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
May 201477.0Functionally obsoleteVery GoodGoodGood16738
May 201277.0Functionally obsoleteVery GoodGoodGood16738
July 201077.0Not deficientVery GoodGoodGood19430
August 200877.0Not deficientVery GoodGoodGood19430
August 200679.0Not deficientVery GoodGoodGood19430
May 200577.0Not deficientVery GoodVery GoodGood19430
February 200447.0Not deficientSeriousPoorPoor19430
August 200247.0Not deficientSeriousPoorPoor19430
November 200147.0Structurally deficientSeriousPoorPoor19430
May 200132.0Structurally deficientSeriousSeriousPoor19430
September 199947.0Structurally deficientSeriousPoorPoor19430
August 199847.0Structurally deficientSeriousPoorPoor19430
July 199747.0Structurally deficientSeriousPoorPoor19430
September 199649.0Structurally deficientPoorPoorPoor19430
October 199450.0Structurally deficientSatisfactoryPoorSatisfactory19430
August 199250.0Structurally deficientSatisfactoryPoorSatisfactory19430
July 199050.0Structurally deficientSatisfactoryPoorSatisfactory19430