478 AVE over I029


+42.65714, -96.64557
42°39'26" N, 96°38'44" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:478 AVE over I029
Structure number:000000064080296
Location:1.3 SE OF ELK POINT
Purpose:Carries highway over highway
Route classification:Local (Rural) [09]
Length of largest span:100.1 ft. [30.5 m]
Total length:365.2 ft. [111.3 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:27.9 ft. [8.5 m]
Vertical clearance below bridge:16.7 ft. [5.1 m]
Owner:State Highway Agency [01]
Year built:1961
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Number of main spans:4
Main spans material:Concrete continuous [2]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Low slump Concrete [4]

Latest Available Inspection: March 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:65 [as of 2015]
Truck traffic:2% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Equal to present minimum criteria [6]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Scour condition:Bridge not over waterway. [N]
Inventory rating:60.8 tons [55.3 metric tons]
Sufficiency rating:88.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
March 201788.0FairGoodFairGood-65
March 201588.0FairGoodFairGood-65
April 201388.0FairGoodFairGood-65
March 201199.0FairGoodSatisfactoryGood-65
February 200998.0FairGoodSatisfactoryGood-65
December 200698.0FairGoodSatisfactoryGood-65
March 200587.0FairGoodFairGood-65
May 200381.5FairGoodFairGood-220
June 200181.5FairGoodFairGood-220
August 199981.5FairGoodFairGood-220
September 199792.5GoodVery GoodGoodGood-220
July 199592.0GoodVery GoodGoodGood-220
January 199492.0GoodVery GoodGoodGood-220
December 199192.0GoodVery GoodGoodGood-220