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CH 23 over TRIB TO MILL CK

Map

Coordinates:
+38.95669, -90.30475
38°57'24" N, 90°18'17" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:CH 23 over TRIB TO MILL CK
Structure number:042400200000000
Old structure number:000042400203584 (from 1992 edition)
Location:2.5 Mi E of Elsah
Purpose:Carries highway over waterway
Route classification:Minor Collector (Rural) [08]
Length of largest span:27.9 ft. [8.5 m]
Total length:86.0 ft. [26.2 m]
Roadway width between curbs:29.9 ft. [9.1 m]
Deck width edge-to-edge:29.9 ft. [9.1 m]
Skew angle:30°
Owner:County Highway Agency [02]
Year built:1983
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:Concrete [1]
Main spans design:Channel beam [22]
Deck type:Concrete Precast Panels [2]
Wearing surface:Gravel [8]

Latest Available Inspection: January 2015

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:400 [as of 2012]
Truck traffic:8% of total traffic
Deck condition:Very Good [8 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]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Better than present minimum criteria [7]
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]
Sufficiency rating:99.9

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
January 2015GoodVery GoodGoodGood40099.9
January 2011GoodGoodGoodGood50099.9
March 2006GoodGoodGoodGood50099.9
January 2001GoodGoodGoodGood55099.8
February 1997GoodGoodGoodGood55099.8
February 1995GoodGoodGoodGood450100.0
February 1993GoodGoodGoodGood400100.0
February 1991GoodGoodGoodGood400100.0