I-75 over MCNICHOLS RD

Map 

Facts 

Name:	I-75 over MCNICHOLS RD
Structure number:	82182252000S220
Location:	IN DETROIT OVER MCNICHOLS
Purpose:	Carries highway over highway
Route classification:	Principal Arterial - Interstate (Urban) [11]
Length of largest span:	82.0 ft. [25.0 m]
Total length:	224.7 ft. [68.5 m]
Roadway width between curbs:	142.7 ft. [43.5 m]
Deck width edge-to-edge:	149.3 ft. [45.5 m]
Vertical clearance below bridge:	15.1 ft. [4.6 m]
Skew angle:	29°
Owner:	State Highway Agency [01]
Year built:	1969
Year reconstructed:	2003
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:	Prestressed concrete [5]
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]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	174,074 [as of 2007]
Truck traffic:	7% of total traffic
Deck condition:	Very Good [8 out of 9]
Superstructure condition:	Very Good [8 out of 9]
Substructure condition:	Good [7 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	36.0 tons [32.7 metric tons]
Inventory rating:	36.0 tons [32.7 metric tons]
Sufficiency rating:	92.0

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	211,000 [as of 1995]
Truck traffic:	6% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Serious [3 out of 9]
Pier/abutment protection:	Navigation protection not required [1]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	102.3 tons [93.0 metric tons]
Inventory rating:	61.4 tons [55.8 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	52.0
Recommended work:	Bridge deck replacement with only incidental widening. [37]

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	112,600 [as of 1982]
Deck condition:	Satisfactory [6 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Fair [5 out of 9]
Pier/abutment protection:	Navigation protection not required [1]
Scour condition:	Bridge not over waterway. [N]
Inventory rating:	47.5 tons [43.2 metric tons]
Sufficiency rating:	81.0
Recommended work:	Bridge deck replacement with only incidental widening. [37]

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