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US 20 COMM AV,MBTA over COMB I 90 & MBTA/CSX

Map 

Coordinates:
+42.35056, -71.11194
42°21'02" N, 71°06'43" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:US 20 COMM AV,MBTA over COMB I 90 & MBTA/CSX
Structure number:B160554T0DOTNBI
Location:.1MI.S.STORROW DR S48
Purpose:Carries highway and pedestrian walkway over highway and railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:151.9 ft. [46.3 m]
Total length:379.9 ft. [115.8 m]
Roadway width between curbs:60.0 ft. [18.3 m]
Deck width edge-to-edge:72.5 ft. [22.1 m]
Vertical clearance below bridge:14.1 ft. [4.3 m]
Skew angle:62°
Owner:State Highway Agency [01]
Year built:1965
Year reconstructed:1987
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:Latex Concrete or similar additive [3]

Latest Available Inspection: June 2015 

Status:Open, no restriction [A]
Average daily traffic:81,500 [as of 2015]
Truck traffic:8% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Poor [4 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 corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:47.9 tons [43.5 metric tons]
Inventory rating:36.0 tons [32.7 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:47.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$14,434,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
June 201547.0Structurally deficientPoorFairPoor81500
June 201347.0Structurally deficientPoorFairPoor35200
June 201249.0Structurally deficientFairFairPoor35200
April 201050.8Structurally deficientFairFairPoor20300
January 200850.9Structurally deficientFairFairPoor19900