RTE I87 over RTE 9N


+43.40220, -73.71321
43°24'08" N, 73°42'48" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:RTE I87 over RTE 9N
Structure number:000000001006761
Location:JCT RTES 9N & I87
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:77.8 ft. [23.7 m]
Total length:219.8 ft. [67.0 m]
Roadway width between curbs:54.1 ft. [16.5 m]
Deck width edge-to-edge:59.1 ft. [18.0 m]
Vertical clearance below bridge:26.2 ft. [8.0 m]
Skew angle:17°
Owner:State Highway Agency [01]
Year built:1963
Year reconstructed:2007
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
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:Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]

Latest Available Inspection: July 2015 

Status:Open, no restriction [A]
Average daily traffic:20,139 [as of 2002]
Truck traffic:9% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 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:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:60.8 tons [55.3 metric tons]
Inventory rating:36.0 tons [32.7 metric tons]
Sufficiency rating:68.0
Recommended work:Widening of existing bridge with deck rehabilitation or replacement. [34]
Estimated cost of work:$682,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
July 201568.0Not deficientSatisfactorySatisfactoryFair20139
August 201379.0Not deficientSatisfactorySatisfactorySatisfactory20139
August 201179.0Not deficientSatisfactorySatisfactorySatisfactory4657
August 200979.0Not deficientSatisfactorySatisfactoryGood23399
August 200779.0Not deficientSatisfactorySatisfactoryGood4657
March 200578.9Not deficientSatisfactorySatisfactorySatisfactory4657
July 200378.9Not deficientSatisfactorySatisfactorySatisfactory4657
June 200178.8Not deficientSatisfactoryGoodSatisfactory4657
April 199978.8Not deficientSatisfactoryGoodSatisfactory4657
May 199767.8Not deficientSatisfactoryGoodFair3917
May 199551.5Structurally deficientFairSatisfactoryPoor3917
June 199352.5Structurally deficientFairSatisfactoryPoor3344
March 199152.5Structurally deficientFairSatisfactoryPoor3981