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HWY BOYLSTON ST over COMB AMTRAK/MBTA & ORNG

Map 

Coordinates:
+42.31702, -71.10437
42°19'01" N, 71°06'16" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:HWY BOYLSTON ST over COMB AMTRAK/MBTA & ORNG
Structure number:B160974VEMBTNBI
Location:AT STONY BROOK SUBSTATION
Purpose:Carries highway and pedestrian walkway over railroad
Route classification:Collector (Urban) [17]
Length of largest span:62.0 ft. [18.9 m]
Total length:107.9 ft. [32.9 m]
Roadway width between curbs:35.1 ft. [10.7 m]
Deck width edge-to-edge:56.1 ft. [17.1 m]
Vertical clearance below bridge:15.1 ft. [4.6 m]
Skew angle:13°
Owner:Other State Agencies [21]
Year built:1981
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:2
Main spans material:Concrete continuous [2]
Main spans design:Frame [07]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: April 2014 

Status:Open, no restriction [A]
Average daily traffic:3,300 [as of 1997]
Truck traffic:7% 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Operating rating:49.0 tons [44.5 metric tons]
Inventory rating:36.0 tons [32.7 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:94.7
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$773,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
April 201494.7Functionally obsoleteSatisfactorySatisfactoryGood3300
May 201394.7Functionally obsoleteSatisfactorySatisfactoryGood3300
May 201194.7Functionally obsoleteGoodGoodGood3300
April 200994.7Functionally obsoleteGoodGoodGood3300
March 200894.7Functionally obsoleteGoodGoodGood3300
March 200694.7Functionally obsoleteGoodVery GoodVery Good3300
March 200494.7Functionally obsoleteGoodVery GoodVery Good3300
March 200294.7Functionally obsoleteGoodVery GoodVery Good3300
April 200094.7Functionally obsoleteGoodVery GoodVery Good3300