MACK AVE over I-75


+42.35123, -83.04819
42°21'04" N, 83°02'53" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:MACK AVE over I-75
Structure number:000000000011815
Old structure number:82182251000S140 (from 1992 edition)
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:74.5 ft. [22.7 m]
Total length:205.4 ft. [62.6 m]
Roadway width between curbs:124.7 ft. [38.0 m]
Deck width edge-to-edge:150.9 ft. [46.0 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Owner:State Highway Agency [01]
Year built:1961
Year reconstructed:2007
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:Steel [3]
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: December 2015 

Status:Open, no restriction [A]
Average daily traffic:19,710 [as of 2007]
Truck traffic:3% of total traffic
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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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:81.3 tons [73.9 metric tons]
Inventory rating:48.5 tons [44.1 metric tons]
Sufficiency rating:92.1

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
December 201592.1Not deficientVery GoodGoodGood19710
January 201492.1Not deficientVery GoodGoodGood19710
April 201260.6Not deficientVery GoodPoorGood19710
April 201060.6Not deficientVery GoodPoorVery Good19710
March 200989.1Not deficientVery GoodGoodGood19710
August 200889.1Not deficientVery GoodGoodGood19710
May 200757.3Not deficientPoorPoorPoor19710
May 200658.4Structurally deficientPoorPoorPoor19710
February 200558.4Structurally deficientPoorPoorPoor19710
November 200357.3Structurally deficientPoorPoorPoor19710
October 200257.3Structurally deficientPoorPoorPoor19710
July 200158.4Structurally deficientPoorPoorPoor19710
May 200056.2Structurally deficientSeriousPoorPoor19710
September 199860.6Structurally deficientFairPoorPoor19710
September 199683.8Not deficientFairSatisfactoryFair19710
September 199495.0Not deficientFairSatisfactoryGood19710
July 199262.3Structurally deficientFairPoorGood19710
June 199063.3Structurally deficientSatisfactoryPoorGood19710