MO 21 S over CRD OLD HWY 21


+38.42864, -90.47094
38°25'43" N, 90°28'15" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:MO 21 S over CRD OLD HWY 21
Structure number:2541
Location:S 1974 T 43 N R 5 E
Purpose:Carries highway over highway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:107.9 ft. [32.9 m]
Total length:273.0 ft. [83.2 m]
Roadway width between curbs:39.4 ft. [12.0 m]
Deck width edge-to-edge:42.0 ft. [12.8 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:57°
Owner:State Highway Agency [01]
Year built:1987
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: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: November 2016 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:8,963 [as of 2015]
Truck traffic:10% of total traffic
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:Equal to present minimum criteria [6]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:67.3 tons [61.2 metric tons]
Inventory rating:40.6 tons [36.9 metric tons]
Sufficiency rating:98.6

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201698.6FairSatisfactoryGoodGood-8963
November 201498.7FairSatisfactoryGoodGood-7082
November 201298.7FairSatisfactoryGoodGood-6847
January 201298.7FairSatisfactoryGoodGood-6322
January 201098.7FairSatisfactoryGoodGood-6323
January 200898.7GoodGoodGoodGood-6814
December 200598.7GoodGoodGoodGood-6809
February 200498.8GoodGoodGoodGood-4346
November 200198.8GoodGoodVery GoodGood-4265