HWY BOSTON ST over TR AMTRAK & RED CON

Map 

Facts 

Name:	HWY BOSTON ST over TR AMTRAK & RED CON
Structure number:	B161284VLMBTNBI
Location:	NEAR SE XWAY
Purpose:	Carries highway and pedestrian walkway over railroad
Route classification:	Minor Arterial (Urban) [16]
Length of largest span:	71.9 ft. [21.9 m]
Total length:	78.1 ft. [23.8 m]
Roadway width between curbs:	40.0 ft. [12.2 m]
Deck width edge-to-edge:	62.0 ft. [18.9 m]
Vertical clearance below bridge:	15.1 ft. [4.6 m]
Skew angle:	52°
Owner:	Other State Agencies [21]
Year built:	1977
Historic significance:	Bridge is not eligible for the National Register of Historic Places [5]
Design load:	MS 18 / HS 20 [5]
Main span material:	Prestressed concrete [5]
Main span design:	Box beam or girders - Multiple [05]
Deck type:	Concrete Cast-in-Place [1]
Wearing surface:	Bituminous [6]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	8,900 [as of 1997]
Truck traffic:	6% of total traffic
Deck condition:	Satisfactory [6 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:	48.5 tons [44.1 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	94.1
Recommended work:	Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:	$289,000

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