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

Map

Coordinates:
+42.33450, -71.06164
42°20'04" N, 71°03'42" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
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:32.2 ft. [9.8 m]
Deck width edge-to-edge:34.8 ft. [10.6 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 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:5,700 [as of 2015]
Truck traffic:40% 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:Better than present minimum criteria [7]
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]
Sufficiency rating:90.4
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$24,889,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2017GoodGoodGoodGood570090.4
September 2015GoodGoodGoodGood853070.0
September 2013GoodGoodGoodGood853070.0
September 2011GoodGoodGoodGood1165069.6
February 2011GoodGoodGoodGood1165069.6
March 2009GoodGoodGoodGood1165026.5

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Closed Web/Box Girderlinear ft.3,6403,640000
Steel Protective Coatingsq. ft.148,065142,1752,9452,9450
Steel Girder/Beamlinear ft.149149000
Steel Protective Coatingsq. ft.1,8481,848000
Deck
Reinforced Concrete Decksq. ft.62,79057,7974,99300
Wearing Surfacessq. ft.58,24057,24199810
Substructure
Reinforced Concrete Columneach99000
Reinforced Concrete Pier Walllinear ft.1714300
Reinforced Concrete Abutmentlinear ft.6060000
Reinforced Concrete Pier Caplinear ft.141133620
Joints
Assembly with Sealeach7373000
Bearings
Elastomeric Bearingeach2241800
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.3,6403,639010
Other Material Bridge Raillinear ft.2,6732,671020