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HWY RIVER ST over RR AMTRAK/MBTA

Map

Coordinates:
+42.25567, -71.12526
42°15'20" N, 71°07'31" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:HWY RIVER ST over RR AMTRAK/MBTA
Structure number:B161093H8DOT634
Location:.8 KM SW OF MATTAPAN SQ.
Purpose:Carries highway and pedestrian walkway over railroad
Route classification:Minor Arterial (Urban) [16]
Length of largest span:76.1 ft. [23.2 m]
Total length:82.0 ft. [25.0 m]
Roadway width between curbs:28.2 ft. [8.6 m]
Deck width edge-to-edge:51.8 ft. [15.8 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:30°
Owner:State Highway Agency [01]
Year built:1883
Year reconstructed:1990
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Main span material:Steel [3]
Main span design:Truss - Thru [10]
Deck type:Corrugated Steel [6]
Wearing surface:Bituminous [6]

Latest Available Inspection: November 2017

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:18,200 [as of 2013]
Truck traffic:5% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Basically intolerable requiring high priority of replacement [2]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:28.6
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$4,840,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2017PoorFairPoorSatisfactory1820028.6
November 2015PoorFairPoorSatisfactory1820028.6
November 2013PoorFairPoorSatisfactory1820028.6
November 2011PoorFairPoorSatisfactory2570036.6
September 2009PoorFairPoorSatisfactory2220037.6

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Stringerlinear ft.53204026124
Steel Trusslinear ft.1520136016
Steel Protective Coatingsq. ft.1,52001,52000
Steel Floor Beamlinear ft.32202278510
Substructure
Masonry Abutmentlinear ft.120024960
Deck
Corrugated or Orthotropic Decksq. ft.2,3142,308600
Wearing Surfacessq. ft.2,31401,0201,000294
Steel Protective Coatingsq. ft.2,3142,314000
Joints
Strip Seal Jointlinear ft.5656000
Bearings
Movable Bearingeach70070
Steel Protective Coatingsq. ft.2600260
Fixed Bearingeach70070
Steel Protective Coatingsq. ft.2600260
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1651480170
Steel Protective Coatingsq. ft.990990000