HWY S BOS BYPASS over COMB AMTRAK/MBTA&RED LN

Map 

Facts 

Name:	HWY S BOS BYPASS over COMB AMTRAK/MBTA&RED LN
Structure number:	B166457GDDOTNBI
Location:	.6 MI S OF JCT I 90, I 93
Purpose:	Carries highway over railroad
Route classification:	Minor Arterial (Urban) [16]
Length of largest span:	200.1 ft. [61.0 m]
Total length:	1822.6 ft. [555.5 m]
Roadway width between curbs:	31.8 ft. [9.7 m]
Deck width edge-to-edge:	36.1 ft. [11.0 m]
Vertical clearance below bridge:	23.0 ft. [7.0 m]
Owner:	State Highway Agency [01]
Year built:	1995
Historic significance:	Historical significance is not determinable at this time [4]
Design load:	MS 22.5 / HS 25 [9]
Number of main spans:	10
Main spans material:	Steel continuous [4]
Main spans design:	Box beam or girders - Multiple [05]
Deck type:	Concrete Cast-in-Place [1]
Wearing surface:	Latex Concrete or similar additive [3]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	11,650 [as of 1995]
Truck traffic:	90% of total traffic
Deck condition:	Good [7 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Good [7 out of 9]
Scour condition:	Bridge not over waterway. [N]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	26.5
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:	$25,441,000

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