US 6 ML over I 70 ML


+39.57476, -107.44751
39°34'29" N, 107°26'51" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:US 6 ML over I 70 ML
Structure number:F-07-AC
Purpose:Carries highway overpass over highway
Route classification:Major Collector (Rural) [07]
Length of largest span:93.5 ft. [28.5 m]
Total length:190.0 ft. [57.9 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:30.5 ft. [9.3 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Owner:State Highway Agency [01]
Year built:1971
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:Box Beam or girders - Single or Spread [06]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: July 2014 

Status:Open, no restriction [A]
Average daily traffic:1,600 [as of 2011]
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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge not over waterway. [N]
Operating rating:53.2 tons [48.4 metric tons]
Inventory rating:31.9 tons [29.0 metric tons]
Sufficiency rating:88.5

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
July 201488.5Not deficientSatisfactorySatisfactoryGood1600
July 201288.5Not deficientSatisfactorySatisfactoryGood1800
September 201088.5Not deficientSatisfactorySatisfactoryGood1800
August 200887.5Not deficientFairSatisfactoryGood1800
September 200687.5Not deficientFairSatisfactoryGood1300
September 200487.5Not deficientFairSatisfactoryGood1313
July 200287.5Not deficientFairSatisfactoryGood1313
August 200087.3Not deficientFairSatisfactoryGood1115
July 199887.3Not deficientFairSatisfactoryGood1115
June 199686.3Not deficientFairSatisfactoryGood1200
September 199492.8Not deficientFairSatisfactoryGood475
June 199189.2Not deficientFairGoodVery Good780