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HWY RIVER ST over RR AMTRAK/MBTA

Map

Coordinates:
+42.25528, -71.12528
42°15'19" 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:17.4 ft. [5.3 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 2015

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]
Operating rating:34.8 tons [31.6 metric tons]
Inventory rating:22.6 tons [20.5 metric tons]
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:$5,260,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201528.6PoorFairPoorSatisfactorySD18200
November 201328.6PoorFairPoorSatisfactorySD18200
November 201136.6PoorFairPoorSatisfactorySD25700
September 200937.6PoorFairPoorSatisfactorySD22200

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Stringerlinear ft.570752382498
Steel Protective Coatingsq. ft.1,9981,998000
Steel Trusslinear ft.1650011550
Steel Protective Coatingsq. ft.999999000
Steel Floor Beamlinear ft.335531591167
Steel Protective Coatingsq. ft.1,9981,998000
Substructure
Masonry Abutmentlinear ft.120024960
Deck
Corrugated or Orthotropic Decksq. ft.2,27502,27500
Wearing Surfacessq. ft.2,27502,27500
Steel Protective Coatingsq. ft.999999000
Joints
Strip Seal Jointlinear ft.3703700
Deck
Timber Decksq. ft.1,5001,500000
Bearings
Elastomeric Bearingeach66000
Movable Bearingeach54100
Steel Protective Coatingsq. ft.999999000
Fixed Bearingeach75200
Steel Protective Coatingsq. ft.999999000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1651480170
Steel Protective Coatingsq. ft.999999000