MO 21 S over COTTER CR


+38.18348, -90.56142
38°11'01" N, 90°33'41" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:MO 21 S over COTTER CR
Structure number:3612
Old structure number:A4422 1 (from 1992 edition)
Location:S 22 T 40 N R 4 W
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:66.6 ft. [20.3 m]
Total length:199.2 ft. [60.7 m]
Roadway width between curbs:38.7 ft. [11.8 m]
Deck width edge-to-edge:41.3 ft. [12.6 m]
Owner:State Highway Agency [01]
Year built:1989
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Number of main spans:3
Main spans material:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: December 2016 

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:12,413 [as of 2015]
Truck traffic:10% of total traffic
Deck condition:Good [7 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:73.3 tons [66.6 metric tons]
Inventory rating:44.6 tons [40.5 metric tons]
Sufficiency rating:84.0

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
December 201684.0GoodGoodGoodGood-12413
December 201484.0GoodGoodGoodGood-12122
December 201284.0GoodGoodGoodGood-11837
January 201284.0GoodGoodGoodGood-12522
January 201084.0GoodGoodGoodGood-12522
January 200884.0GoodGoodGoodGood-11172
December 200584.0GoodGoodGoodGood-12286
January 200484.0GoodGoodGoodGood-12800
December 200183.0GoodGoodGoodVery Good-12340
November 200083.0GoodGoodGoodVery Good-11101
January 200083.0GoodGoodGoodVery Good-10767
November 199883.0GoodGoodGoodVery Good-10767
January 199883.0GoodGoodGoodVery Good-10767
January 199783.0GoodGoodGoodVery Good-11226
February 199684.0GoodGoodGoodVery Good-11226
November 199484.0GoodGoodVery GoodExcellent-8661
February 199484.0GoodExcellentVery GoodExcellent-8376
February 199384.0GoodExcellentExcellentExcellent-8376
December 199184.0GoodExcellentExcellentExcellent-7985