I-90 SKYWAY over STONY ISLAND AVE

Map 

Facts 

Name:	I-90 SKYWAY over STONY ISLAND AVE
Structure number:	000016640404264
Location:	0.1 M S 79TH P7C
Purpose:	Carries highway over highway
Route classification:	Principal Arterial - Interstate (Urban) [11]
Tolls:	Yes, on toll road [2]
Length of largest span:	142.7 ft. [43.5 m]
Total length:	294.6 ft. [89.8 m]
Roadway width between curbs:	100.1 ft. [30.5 m]
Deck width edge-to-edge:	106.0 ft. [32.3 m]
Vertical clearance above deck:	19.7 ft. [6.0 m]
Vertical clearance below bridge:	14.1 ft. [4.3 m]
Skew angle:	44°
Owner:	City or Municipal Highway Agency [04]
Year built:	1958
Year reconstructed:	1994
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]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	47,900 [as of 2009]
Truck traffic:	11% of total traffic
Deck condition:	Satisfactory [6 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Fair [5 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	48.5 tons [44.1 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Sufficiency rating:	73.0

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	12,900 [as of 1995]
Truck traffic:	22% of total traffic
Deck condition:	Satisfactory [6 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Good [7 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	48.5 tons [44.1 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Sufficiency rating:	92.1

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	12,900 [as of 1990]
Truck traffic:	18% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Fair [5 out of 9]
Substructure condition:	Fair [5 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	35.6 tons [32.4 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Sufficiency rating:	81.3

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