Share:

I 93 NB BT 38-46 over I 93 SB BT 38-46

Map 

Coordinates:
+42.37611, -71.07361
42°22'34" N, 71°04'25" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I 93 NB BT 38-46 over I 93 SB BT 38-46
Structure number:B162813DWDOTNBI
Location:.7 MI N OF JCT US1&I93
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:82.0 ft. [25.0 m]
Total length:651.9 ft. [198.7 m]
Roadway width between curbs:62.0 ft. [18.9 m]
Deck width edge-to-edge:68.9 ft. [21.0 m]
Vertical clearance above deck:15.4 ft. [4.7 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1970
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:8
Main spans material:Steel [3]
Main spans design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: March 2014 

Status:Open, no restriction [A]
Average daily traffic:74,200 [as of 2014]
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:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Operating rating:58.4 tons [53.1 metric tons]
Inventory rating:35.0 tons [31.8 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:69.9
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$15,089,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
March 201469.9Functionally obsoleteSatisfactoryFairFair74200
March 201269.9Functionally obsoleteSatisfactoryFairFair74200
March 201070.0Functionally obsoleteSatisfactorySatisfactoryFair74200
March 200870.0Functionally obsoleteSatisfactorySatisfactoryFair74200