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HWY BLAKEMORE ST over RR AMTRAK/MBTA

Map

Coordinates:
+42.28551, -71.11954
42°17'08" N, 71°07'10" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:HWY BLAKEMORE ST over RR AMTRAK/MBTA
Structure number:B16105390MUNNBI
Location:3.8 W OF RT 93
Purpose:Carries highway and pedestrian walkway over railroad
Route classification:Local (Urban) [19]
Length of largest span:70.9 ft. [21.6 m]
Total length:75.1 ft. [22.9 m]
Roadway width between curbs:22.0 ft. [6.7 m]
Deck width edge-to-edge:41.0 ft. [12.5 m]
Vertical clearance below bridge:17.7 ft. [5.4 m]
Owner:City or Municipal Highway Agency [04]
Year built:1882
Year reconstructed:1950
Historic significance:Historical significance is not determinable at this time [4]
Main span material:Steel [3]
Main span design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: March 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:9,900 [as of 2013]
Truck traffic:10% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
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:Meets minimum tolerable limits to be left in place as is [4]
Scour condition:Bridge not over waterway. [N]
Operating rating:80.7 tons [73.4 metric tons]
Inventory rating:55.2 tons [50.2 metric tons]
Sufficiency rating:70.7
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$1,337,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
March 201570.7FairSatisfactorySatisfactoryGoodFO9900
March 201370.7FairSatisfactorySatisfactoryGoodFO9900
March 201170.7FairSatisfactorySatisfactoryGoodFO9900
March 200970.7FairSatisfactorySatisfactoryGoodFO9900
March 200770.7FairSatisfactorySatisfactoryGoodFO9600
March 200570.8FairSatisfactorySatisfactoryGoodFO9400
November 200270.3FairSatisfactorySatisfactoryGoodFO13100
December 200070.5FairSatisfactorySatisfactoryGoodFO11200

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Stringerlinear ft.150015000
Steel Protective Coatingsq. ft.1,9981,998000
Deck
Reinforced Concrete Decksq. ft.2,4402,22321700
Wearing Surfacessq. ft.1,6501,5678300
Substructure
Masonry Abutmentlinear ft.8282000
Bearings
Movable Bearingeach22000
Steel Protective Coatingsq. ft.999999000
Fixed Bearingeach22000
Steel Protective Coatingsq. ft.999999000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.150015000
Steel Protective Coatingsq. ft.999999000