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I 93 RAMP NS over RR MBTA

Map 

Coordinates:
+42.38000, -71.07722
42°22'48" N, 71°04'38" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I 93 RAMP NS over RR MBTA
Structure number:B166049DFDOTNBI
Location:I93/US1 INTERCHANGE
Purpose:Carries highway over railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:157.2 ft. [47.9 m]
Total length:900.6 ft. [274.5 m]
Roadway width between curbs:36.1 ft. [11.0 m]
Deck width edge-to-edge:40.0 ft. [12.2 m]
Vertical clearance below bridge:39.7 ft. [12.1 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1999
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
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]

Latest Available Inspection: February 2014 

Status:Open, no restriction [A]
Average daily traffic:31,000 [as of 2014]
Truck traffic:2% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Better than present minimum criteria [7]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge not over waterway. [N]
Operating rating:91.6 tons [83.3 metric tons]
Inventory rating:54.9 tons [49.9 metric tons]
Sufficiency rating:89.3
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$239,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
February 201489.3Not deficientGoodGoodSatisfactory31000
February 201286.7Not deficientGoodGoodGood40300
February 201098.0Not deficientGoodGoodGood-
December 200798.0Not deficientGoodGoodGood-