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 2014 

Status:Open, no restriction [A]
Average daily traffic:12,122 [as of 2014]
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. ratingEvaluationDeckSuper.Sub.ADT
December 201484.0Not deficientGoodGoodGood12122
December 201284.0Not deficientGoodGoodGood11837
January 201284.0Not deficientGoodGoodGood12522
January 201084.0Not deficientGoodGoodGood12522
January 200884.0Not deficientGoodGoodGood11172
December 200584.0Not deficientGoodGoodGood12286
January 200484.0Not deficientGoodGoodGood12800
December 200183.0Not deficientGoodGoodVery Good12340
November 200083.0Not deficientGoodGoodVery Good11101
January 200083.0Not deficientGoodGoodVery Good10767
November 199883.0Not deficientGoodGoodVery Good10767
January 199883.0Not deficientGoodGoodVery Good10767
January 199783.0Not deficientGoodGoodVery Good11226
February 199684.0Not deficientGoodGoodVery Good11226
November 199484.0Not deficientGoodVery GoodExcellent8661
February 199484.0Not deficientExcellentVery GoodExcellent8376
February 199384.0Not deficientExcellentExcellentExcellent8376
December 199184.0Not deficientExcellentExcellentExcellent7985