USH 12 WB over CTH NN


+42.61548, -88.44729
42°36'56" N, 88°26'50" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:USH 12 WB over CTH NN
Structure number:B64003600000000
Location:1.5 MI W JCT STH 120
Purpose:Carries highway over highway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:54.1 ft. [16.5 m]
Total length:143.4 ft. [43.7 m]
Roadway width between curbs:39.0 ft. [11.9 m]
Deck width edge-to-edge:42.0 ft. [12.8 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Skew angle:40°
Owner:State Highway Agency [01]
Year built:1967
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:3
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Low slump Concrete [4]

Latest Available Inspection: April 2015 

Status:Open, no restriction [A]
Average daily traffic:7,810 [as of 2012]
Truck traffic:8% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Better than present minimum criteria [7]
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:48.5 tons [44.1 metric tons]
Inventory rating:28.5 tons [25.9 metric tons]
Sufficiency rating:89.2

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
April 201589.2Not deficientFairSatisfactorySatisfactory7810
April 201379.0Not deficientSatisfactoryFairSatisfactory11000
April 201190.1Not deficientSatisfactorySatisfactorySatisfactory8600
April 200990.1Not deficientSatisfactorySatisfactorySatisfactory8600
April 200790.1Not deficientSatisfactorySatisfactorySatisfactory5775
September 200590.1Not deficientSatisfactorySatisfactoryGood5775
September 200389.1Not deficientFairSatisfactoryGood5775
October 200289.1Not deficientFairSatisfactoryGood5775
February 200188.1Not deficientFairGoodGood7500
July 199986.1Not deficientFairGoodGood5760
November 199786.1Not deficientFairVery GoodGood9025
March 199687.1Not deficientSatisfactoryVery GoodGood9025
February 199587.8Not deficientSatisfactoryVery GoodGood9025
March 199487.8Not deficientSatisfactoryVery GoodGood2380
March 199287.8Not deficientSatisfactoryVery GoodSatisfactory2380
February 199187.8Not deficientSatisfactoryVery GoodSatisfactory2380