I-94 EB over I-94 RAMP TO M-10

Map 

Facts 

Name:	I-94 EB over I-94 RAMP TO M-10
Structure number:	82182023000S230
Location:	IN DETROIT OVER RAMP D-A
Purpose:	Carries highway and pedestrian walkway over highway
Route classification:	Principal Arterial - Interstate (Urban) [11]
Length of largest span:	78.7 ft. [24.0 m]
Total length:	186.0 ft. [56.7 m]
Roadway width between curbs:	51.2 ft. [15.6 m]
Deck width edge-to-edge:	54.1 ft. [16.5 m]
Vertical clearance below bridge:	15.1 ft. [4.6 m]
Skew angle:	54°
Owner:	State Highway Agency [01]
Year built:	1955
Year reconstructed:	1995
Historic significance:	Bridge is on the National Register of Historic Places [1]
Design load:	MS 18 / HS 20 [5]
Number of main spans:	3
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]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	59,083 [as of 2007]
Truck traffic:	11% of total traffic
Deck condition:	Good [7 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Satisfactory [6 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	94.1 tons [85.5 metric tons]
Inventory rating:	45.0 tons [40.9 metric tons]
Sufficiency rating:	89.3

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	126,000 [as of 1995]
Truck traffic:	5% 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]
Pier/abutment protection:	Navigation protection not required [1]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	94.1 tons [85.5 metric tons]
Inventory rating:	45.0 tons [40.9 metric tons]
Sufficiency rating:	80.4

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	54,800 [as of 1982]
Truck traffic:	10% of total traffic
Deck condition:	Serious [3 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]
Inventory rating:	44.6 tons [40.5 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	34.1
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$1,650,000

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