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HWY CAMBRIDGE ST over COMB I 90 & MBTA/CSX

Map 

Coordinates:
+42.35611, -71.13056
42°21'22" N, 71°07'50" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:HWY CAMBRIDGE ST over COMB I 90 & MBTA/CSX
Structure number:B160564REDOTNBI
Location:.2 MI W.RAILROAD YDS S101
Purpose:Carries highway and pedestrian walkway over highway and railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:130.3 ft. [39.7 m]
Total length:474.1 ft. [144.5 m]
Roadway width between curbs:67.9 ft. [20.7 m]
Deck width edge-to-edge:77.1 ft. [23.5 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Owner:State Highway Agency [01]
Year built:1964
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:5
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: February 2015 

Status:Open, no restriction [A]
Average daily traffic:30,100 [as of 2013]
Truck traffic:5% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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:48.5
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$19,184,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
February 201548.5Structurally deficientPoorFairFair30100
February 201348.5Structurally deficientPoorFairFair30100
February 201171.9Structurally deficientPoorFairSatisfactory19900
November 200871.9Structurally deficientPoorFairSatisfactory19900