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HWY SHAWMUT AVE over COMB I 90 & AMTRK, ORNG

Map

Coordinates:
+42.34722, -71.06611
42°20'50" N, 71°03'58" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:HWY SHAWMUT AVE over COMB I 90 & AMTRK, ORNG
Structure number:B160804RQDOTNBI
Location:.32 KM .S. OF BOS COM
Purpose:Carries highway and pedestrian walkway over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Tolls:Yes, on toll road [2]
Length of largest span:46.9 ft. [14.3 m]
Total length:140.1 ft. [42.7 m]
Roadway width between curbs:44.0 ft. [13.4 m]
Deck width edge-to-edge:63.0 ft. [19.2 m]
Vertical clearance below bridge:14.4 ft. [4.4 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1965
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: November 2015

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:11,379 [as of 2015]
Truck traffic:5% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:75.7 tons [68.8 metric tons]
Inventory rating:45.3 tons [41.2 metric tons]
Sufficiency rating:58.1
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$4,649,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201558.1PoorPoorSatisfactoryFairSD11379
November 201359.0PoorPoorSatisfactoryFairSD6300
November 201157.5PoorPoorSatisfactoryFairSD8900
July 201059.5PoorPoorSatisfactoryFairSD8900
June 200859.5PoorPoorSatisfactoryFairSD8900

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.1,4654341,03100
Steel Protective Coatingsq. ft.11,7203,4808,24000
Deck
Reinforced Concrete Decksq. ft.11,1037487,0793,2760
Wearing Surfacessq. ft.7,7543,7543,8002000
Substructure
Reinforced Concrete Columneach50320
Reinforced Concrete Pier Walllinear ft.51133620
Masonry Pier Walllinear ft.623012200
Reinforced Concrete Abutmentlinear ft.671340140
Reinforced Concrete Pier Caplinear ft.1314671140
Joints
Strip Seal Jointlinear ft.132066066
Bearings
Movable Bearingeach44022220
Steel Protective Coatingsq. ft.176017600
Fixed Bearingeach2200220
Steel Protective Coatingsq. ft.8800880
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.136904600
Steel Protective Coatingsq. ft.409409000
Reinforced Concrete Bridge Raillinear ft.136131500