I 93 RAMP SN over COMB MBTA & ORANGE LINE

Map 

Facts 

Name:	I 93 RAMP SN over COMB MBTA & ORANGE LINE
Structure number:	B166059TTDOTNBI
Location:	I93 US1 INTERCHANGE
Purpose:	Carries highway over railroad
Route classification:	Principal Arterial - Interstate (Urban) [11]
Length of largest span:	152.9 ft. [46.6 m]
Total length:	862.9 ft. [263.0 m]
Roadway width between curbs:	22.0 ft. [6.7 m]
Deck width edge-to-edge:	25.9 ft. [7.9 m]
Vertical clearance below bridge:	38.4 ft. [11.7 m]
Skew angle:	99°
Owner:	State Highway Agency [01]
Year built:	1999
Historic significance:	Historical significance is not determinable at this time [4]
Number of main spans:	6
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:	Bridge closed to all traffic [K]
Deck condition:	Good [7 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:	48.5 tons [44.1 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	94.0
Recommended work:	Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:	$3,164,000

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