+38.11614, -90.60323
38°06'58" N, 90°36'12" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:MO 21 S over WHITEHEAD CR
Structure number:6034
Old structure number:L 13 1 (from 1992 edition)
Location:S 8 T 39 N R 4 E
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:9.8 ft. [3.0 m]
Total length:23.6 ft. [7.2 m]
Skew angle:27°
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 2014 

Status:Open, no restriction [A]
Average daily traffic:6,086 [as of 2014]
Truck traffic:10% of total traffic
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is being eroded. River control devices and/or embankment have major damage. Trees and rush restrict the channel. [5]
Culvert condition:Moderate to major deterioration or disintegration, extensive cracking and leaching or spalls on concrete or masonry walls and slabs. Minor settlement or misalignment. Noticeable scouring or erosion at curtain walls, wingwalls or pipes. Metal culverts have significant distortion and deflection in one section, significant corrosion or deep pitting. [5]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:59.4 tons [54.0 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:73.9

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
December 201473.9Not deficient---6086
December 201256.8Not deficient---5978
January 201156.8Not deficient---6452
December 200866.8Not deficient---6452
November 200666.8Not deficient---7367
November 200466.8Not deficient---7239
November 200266.8Not deficient---7007
November 200066.8Not deficient---6307
November 199866.8Not deficient---6117
January 199766.8Not deficient---5699
December 199466.8Not deficient---5832
October 199273.8Not deficient---5640
July 199061.7Not deficient---5377