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

Map 

Coordinates:
+42.33389, -71.06250
42°20'02" N, 71°03'45" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

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]

Latest Available Inspection: September 2015 

Status:Open, no restriction [A]
Average daily traffic:8,530 [as of 2013]
Truck traffic:12% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Operating rating:33.0 tons [30.0 metric tons]
Inventory rating:19.8 tons [18.0 metric tons]
Sufficiency rating:70.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$34,432,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
September 201570.0Not deficientGoodGoodGood8530
September 201370.0Not deficientGoodGoodGood8530
September 201169.6Not deficientGoodGoodGood11650
February 201169.6Not deficientGoodGoodGood11650
March 200926.5Functionally obsoleteGoodGoodGood11650