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 2014 

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]
Pier/abutment protection:Navigation protection not required [1]
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. ratingEvaluationDeckSuper.Sub.ADT
June 201479.5Not deficientSatisfactorySatisfactoryGood7900
June 201279.5Not deficientSatisfactorySatisfactoryGood6800
June 201079.5Not deficientSatisfactorySatisfactoryGood6800
June 200879.5Not deficientSatisfactoryGoodGood6800
May 200679.5Not deficientSatisfactoryGoodGood6800
June 200478.5Not deficientSatisfactoryGoodGood6981
June 200278.6Not deficientSatisfactoryGoodGood6317
June 200078.1Not deficientSatisfactoryGoodGood5892
May 199878.1Not deficientSatisfactoryVery GoodGood5892
March 199678.1Not deficientSatisfactoryVery GoodGood5700
June 199478.1Not deficientSatisfactoryVery GoodGood5100
June 199181.6Not deficientSatisfactoryGoodGood4000