I 70 SILT SPUR over I 70 ML


+39.54489, -107.65382
39°32'42" N, 107°39'14" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I 70 SILT SPUR over I 70 ML
Structure number:F-06-U
Location:NEAR SILT
Purpose:Carries highway overpass over highway
Route classification:Major Collector (Rural) [07]
Length of largest span:107.6 ft. [32.8 m]
Total length:218.8 ft. [66.7 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:1972
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:2
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: June 2016 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:7,900 [as of 2011]
Truck traffic:5% 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:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:53.9 tons [49.0 metric tons]
Inventory rating:31.9 tons [29.0 metric tons]
Sufficiency rating:79.5

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201679.5FairSatisfactorySatisfactoryGood-7900
June 201479.5FairSatisfactorySatisfactoryGood-7900
June 201279.5FairSatisfactorySatisfactoryGood-6800
June 201079.5FairSatisfactorySatisfactoryGood-6800
June 200879.5FairSatisfactoryGoodGood-6800
May 200679.5FairSatisfactoryGoodGood-6800
June 200478.5FairSatisfactoryGoodGood-6981
June 200278.6FairSatisfactoryGoodGood-6317
June 200078.1FairSatisfactoryGoodGood-5892
May 199878.1FairSatisfactoryVery GoodGood-5892
March 199678.1FairSatisfactoryVery GoodGood-5700
June 199478.1FairSatisfactoryVery GoodGood-5100
June 199181.6FairSatisfactoryGoodGood-4000