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INTERSTATE 29 over ANTELOPE CREEK

Map 

Coordinates:
+46.27502, -96.83334
46°16'30" N, 96°50'00" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:INTERSTATE 29 over ANTELOPE CREEK
Structure number:0029023510 L
Location:1 NORTH ND 13
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:49.9 ft. [15.2 m]
Total length:149.9 ft. [45.7 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:44.9 ft. [13.7 m]
Owner:State Highway Agency [01]
Year built:1973
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:3
Main spans material:Prestressed concrete continuous [6]
Main spans design:Box Beam or girders - Single or Spread [06]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: November 2015 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:2,550 [as of 2015]
Truck traffic:22% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Better than present minimum criteria [7]
Channel protection:Bank and embankment protection is severely undermined. River control devices have severe damage. Large deposits of debris are in the channel. [4]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:81.2 tons [73.8 metric tons]
Inventory rating:38.6 tons [35.1 metric tons]
Sufficiency rating:84.4

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201584.4FairSatisfactoryVery GoodFair-2550
September 201384.4FairSatisfactoryVery GoodFair-2550
December 201195.7GoodGoodVery GoodGood-2550
April 201095.7GoodGoodVery GoodGood-2550
March 201095.7GoodGoodVery GoodGood-2550
November 200795.7GoodGoodVery GoodGood-2550
October 200595.7GoodGoodVery GoodGood-2550
November 200395.7GoodGoodVery GoodGood-2550
November 200195.7FairSatisfactoryVery GoodGood-2550
October 199995.6FairSatisfactoryVery GoodGood-2650
November 199795.7GoodGoodVery GoodGood-2550
February 199686.1GoodGoodVery GoodGood-2055
March 199484.4GoodGoodVery GoodGood-1770
December 199184.8GoodGoodVery GoodGood-1350