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HWY TREMONT ST over COMB I 90 & AMTRAK

Map 

Coordinates:
+42.34750, -71.06861
42°20'51" N, 71°04'07" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:HWY TREMONT ST over COMB I 90 & AMTRAK
Structure number:B160434TFDOTNBI
Location:.32 KM S. OF BOST COM S68
Purpose:Carries highway and pedestrian walkway over highway and railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:58.1 ft. [17.7 m]
Total length:170.9 ft. [52.1 m]
Roadway width between curbs:60.0 ft. [18.3 m]
Deck width edge-to-edge:82.4 ft. [25.1 m]
Vertical clearance below bridge:14.4 ft. [4.4 m]
Skew angle:54°
Owner:State Highway Agency [01]
Year built:1965
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: November 2015 

Status:Open, no restriction [A]
Average daily traffic:12,931 [as of 2015]
Truck traffic:2% 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:103.3 tons [93.9 metric tons]
Inventory rating:61.8 tons [56.2 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:71.4
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$7,490,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
November 201571.4Structurally deficientPoorFairFair12931
November 201371.5Structurally deficientPoorFairFair11800
December 201172.1Structurally deficientPoorSatisfactoryFair15000
July 201073.5Structurally deficientPoorGoodFair19900
July 200873.5Structurally deficientPoorGoodFair19900