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 2016 

Good/Fair/Poor Condition:Fair
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]
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. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201688.5FairSatisfactorySatisfactoryGood-1600
July 201488.5FairSatisfactorySatisfactoryGood-1600
July 201288.5FairSatisfactorySatisfactoryGood-1800
September 201088.5FairSatisfactorySatisfactoryGood-1800
August 200887.5FairFairSatisfactoryGood-1800
September 200687.5FairFairSatisfactoryGood-1300
September 200487.5FairFairSatisfactoryGood-1313
July 200287.5FairFairSatisfactoryGood-1313
August 200087.3FairFairSatisfactoryGood-1115
July 199887.3FairFairSatisfactoryGood-1115
June 199686.3FairFairSatisfactoryGood-1200
September 199492.8FairFairSatisfactoryGood-475
June 199189.2FairFairGoodVery Good-780