CSAH 21 over I 94


+44.95494, -92.79680
44°57'18" N, 92°47'48" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:CSAH 21 over I 94
Structure number:82848
Location:8.0 MI E OF JCT TH 494
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Major Collector (Rural) [07]
Length of largest span:142.4 ft. [43.4 m]
Total length:290.0 ft. [88.4 m]
Roadway width between curbs:46.9 ft. [14.3 m]
Deck width edge-to-edge:58.7 ft. [17.9 m]
Vertical clearance below bridge:16.1 ft. [4.9 m]
Skew angle:24°
Owner:State Highway Agency [01]
Year built:1983
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:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Low slump Concrete [4]

Latest Available Inspection: August 2015 

Status:Open, no restriction [A]
Average daily traffic:2,950 [as of 2005]
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Superior to present desirable criteria [9]
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:88.9 tons [80.8 metric tons]
Inventory rating:53.2 tons [48.4 metric tons]
Sufficiency rating:97.7

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 201597.7Not deficientSatisfactoryGoodGood2950
September 201397.7Not deficientSatisfactoryGoodGood2950
September 201197.7Not deficientSatisfactoryGoodGood2950
October 200997.7Not deficientSatisfactoryGoodGood2950
October 200797.7Not deficientSatisfactoryGoodGood2950
June 200697.7Not deficientSatisfactoryGoodGood2950
April 200597.8Not deficientSatisfactoryGoodGood2500
October 200397.9Not deficientSatisfactoryGoodGood1400
December 200297.9Not deficientGoodGoodGood1400
September 200197.9Not deficientGoodGoodGood1400
October 200097.9Not deficientGoodGoodGood1400
October 199997.9Not deficientGoodGoodGood1400
May 199897.9Not deficientGoodGoodGood1400
July 199696.9Not deficientGoodGoodGood1350
August 199596.9Not deficientGoodGoodGood1350
November 199496.9Not deficientGoodVery GoodGood1300
October 199396.9Not deficientGoodVery GoodGood1300
September 199296.9Not deficientGoodVery GoodGood1450
August 199196.9Not deficientGoodVery GoodGood1450