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US 1 RAMP TC over RR MBTA

Map 

Coordinates:
+42.37139, -71.06944
42°22'17" N, 71°04'10" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:US 1 RAMP TC over RR MBTA
Structure number:B1639282FDOTNBI
Location:I93/US1 INTERCHANGE
Purpose:Carries highway over railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:152.9 ft. [46.6 m]
Total length:387.2 ft. [118.0 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:44.0 ft. [13.4 m]
Vertical clearance below bridge:36.4 ft. [11.1 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:2002
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 22.5 / HS 25 [9]
Number of main spans:3
Main spans material:Prestressed concrete continuous [6]
Main spans design:Segmental box girder [21]
Deck type:Other [9]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: September 2014 

Status:Open, no restriction [A]
Average daily traffic:221,000 [as of 2010]
Truck traffic:8% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge not over waterway. [N]
Operating rating:87.3 tons [79.4 metric tons]
Inventory rating:48.5 tons [44.1 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:81.0
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$1,153,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
September 201481.0Functionally obsoleteSatisfactorySatisfactoryGood221000
September 201281.0Functionally obsoleteSatisfactorySatisfactoryGood221000
March 201081.0Not deficientSatisfactorySatisfactoryGood221000
January 200881.0Not deficientGoodSatisfactoryGood174630