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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
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

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 

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]
Evaluation:Structurally deficient [1]
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. ratingEvaluationDeckSuper.Sub.ADT
November 201528.6Structurally deficientFairPoorSatisfactory18200
November 201328.6Structurally deficientFairPoorSatisfactory18200
November 201136.6Structurally deficientFairPoorSatisfactory25700
September 200937.6Structurally deficientFairPoorSatisfactory22200