Share:

W GRAND BLVD NB over I-75

Map 

Coordinates:
+42.31631, -83.08428
42°18'59" N, 83°05'03" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:W GRAND BLVD NB over I-75
Structure number:000000000011752
Old structure number:82182194000S230 (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:107.9 ft. [32.9 m]
Total length:206.0 ft. [62.8 m]
Roadway width between curbs:36.4 ft. [11.1 m]
Deck width edge-to-edge:48.6 ft. [14.8 m]
Vertical clearance below bridge:16.1 ft. [4.9 m]
Skew angle:18°
Owner:State Highway Agency [01]
Year built: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: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: May 2014 

Status:Open, no restriction [A]
Average daily traffic:4,000 [as of 1991]
Truck traffic:17% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:96.3 tons [87.5 metric tons]
Inventory rating:57.6 tons [52.4 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:79.5

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
May 201479.5Functionally obsoleteVery GoodVery GoodVery Good4000
May 201277.5Functionally obsoleteVery GoodVery GoodVery Good4000
June 201074.5Not deficientVery GoodVery GoodVery Good4000
June 200874.5Not deficientVery GoodVery GoodVery Good4000
June 200677.0Not deficientVery GoodVery GoodVery Good4000
June 200477.0Not deficientVery GoodVery GoodVery Good4000
June 200277.0Not deficientGoodGoodSatisfactory4000
May 200077.0Functionally obsoleteGoodGoodSatisfactory4000
December 199879.0Functionally obsoleteGoodVery GoodSatisfactory4000
August 199679.0Functionally obsoleteExcellent--4000
August 199480.2Functionally obsoleteVery GoodVery GoodVery Good4000
June 199248.2Structurally deficientFairPoorGood4235
June 199046.2Structurally deficientPoorPoorSatisfactory4235