US6 over I680 DIRECTIONAL RAMPS

Map 

Facts 

Name:	US6 over I680 DIRECTIONAL RAMPS
Structure number:	S680 00302A
Location:	I680/US6 INTRCHG
Purpose:	Carries highway overpass over highway
Route classification:	Other Principal Arterial (Urban) [14]
Length of largest span:	95.1 ft. [29.0 m]
Total length:	189.0 ft. [57.6 m]
Roadway width between curbs:	161.8 ft. [49.3 m]
Deck width edge-to-edge:	164.7 ft. [50.2 m]
Vertical clearance below bridge:	17.7 ft. [5.4 m]
Owner:	State Highway Agency [01]
Year built:	2001
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 [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:	77,125 [as of 2008]
Truck traffic:	1% of total traffic
Deck condition:	Very Good [8 out of 9]
Superstructure condition:	Excellent [9 out of 9]
Substructure condition:	Very Good [8 out of 9]
Pier/abutment protection:	Navigation protection not required [1]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	88.1 tons [80.1 metric tons]
Inventory rating:	52.5 tons [47.7 metric tons]
Sufficiency rating:	90.6

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