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HWY VIADUCT ST over HWY NORTHERN AVE

Map 

Coordinates:
+42.34998, -71.04156
42°20'60" N, 71°02'30" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:HWY VIADUCT ST over HWY NORTHERN AVE
Structure number:B161974X5MPANBI
Location:AT WORLD TRADE CENTER
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Local (Urban) [19]
Length of largest span:51.8 ft. [15.8 m]
Total length:113.2 ft. [34.5 m]
Roadway width between curbs:42.3 ft. [12.9 m]
Deck width edge-to-edge:60.7 ft. [18.5 m]
Vertical clearance below bridge:21.3 ft. [6.5 m]
Owner:Other State Agencies [21]
Year built:1915
Historic significance:Historical significance is not determinable at this time [4]
Number of main spans:2
Main spans material:Steel continuous [4]
Main spans design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: March 2016 

Status:Open, no restriction [A]
Average daily traffic:700 [as of 1997]
Truck traffic:8% of total traffic
Deck condition:Satisfactory [6 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:Superior to present desirable criteria [9]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Scour condition:Bridge not over waterway. [N]
Operating rating:61.5 tons [55.9 metric tons]
Inventory rating:42.9 tons [39.0 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:81.9
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$3,647,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
March 201681.9Functionally obsoleteSatisfactoryFairFair700
December 201181.9Functionally obsoleteSatisfactoryFairSatisfactory700
September 200981.9Functionally obsoleteSatisfactoryFairSatisfactory700
December 200792.9Functionally obsoleteSatisfactorySatisfactorySatisfactory700
February 200581.8Functionally obsoleteSatisfactorySatisfactorySatisfactory700
April 200181.8Functionally obsoleteSatisfactorySatisfactorySatisfactory700
September 199470.4Functionally obsoleteFairFairSatisfactory700