+38.13415, -90.57563
38°08'03" N, 90°34'32" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:MO 21 S over TANYARD BR
Structure number:6033
Old structure number:L 12 1 (from 1992 edition)
Location:S 3 T 39 N R 4 E
Purpose:Carries highway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:9.8 ft. [3.0 m]
Total length:21.0 ft. [6.4 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1946
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 13.5 / H 15 [2]
Number of main spans:2
Main spans material:Concrete continuous [2]
Main spans design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: December 2016 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:7,895 [as of 2015]
Truck traffic:10% of total traffic
Structural appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Culvert condition:Deterioration or initial disintegration, minor chloride contamination, cracking with some leaching, or spalls on concrete or masonry walls and slabs. Local minor scouring at curtain walls, wingwalls or pipes. Metal culverts have a smooth curvature, non-symmetrical shape, significant corrosion or moderate pitting. [6]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:70.3 tons [63.9 metric tons]
Inventory rating:42.6 tons [38.7 metric tons]
Sufficiency rating:84.9

Previous Inspections 

DateSuff. RatingConditionCulvert ConditionSD/FOADT
December 201684.9Fair6 out of 10-7895
December 201466.8Fair6 out of 10-7367
December 201266.8Fair6 out of 10-7654
January 201166.8Fair6 out of 10-7810
December 200866.8Fair6 out of 10-7810
November 200666.8Fair6 out of 10-8894
November 200466.8Fair6 out of 10-8738
November 200266.8Fair6 out of 10-8458
November 200066.8Fair6 out of 10-7894
November 199866.8Fair6 out of 10-7785
January 199766.8Good7 out of 10-7577
December 199466.8Good7 out of 10-7286
October 199273.8Good7 out of 10-7129
July 199061.7Good7 out of 10-6796