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TR 4 A over WILBORN CREEK

Map

Coordinates:
+39.59883, -88.79319
39°35'56" N, 88°47'35" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:TR 4 A over WILBORN CREEK
Structure number:070460400000000
Old structure number:000070460415990 (from 1992 edition)
Location:4.5 MI SW BETHANY
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:12.1 ft. [3.7 m]
Total length:41.0 ft. [12.5 m]
Roadway width between curbs:20.0 ft. [6.1 m]
Deck width edge-to-edge:23.3 ft. [7.1 m]
Skew angle:14°
Owner:Town or Township Highway Agency [03]
Year built:1958
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 13.5 / HS 15 [3]
Number of main spans:3
Main spans material:Concrete [1]
Main spans design:Culvert [19]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: January 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:25 [as of 2006]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Meets minimum tolerable limits to be left in place as is [4]
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:Shrinkage cracks, light scaling and insignificant spalling which does not expose reinforcing steel. Insignificant damage caused by drift with no misalignment and not requiring corrective action. Some minor scouring has occured near curtain walls, wingwalls or pipes. Metal culverts have a smooth symmetrical curvature with superficial corrosion and no pitting. [7]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:41.7 tons [37.9 metric tons]
Inventory rating:25.0 tons [22.7 metric tons]
Sufficiency rating:84.2

Previous Inspections

DateSuff. RatingConditionCulvert ConditionSD/FOADT
January 201784.2Good7 out of 10-25
January 201584.2Good7 out of 10-25
January 201383.0Good7 out of 10-25
February 201188.5Good7 out of 10-25
February 200988.5Good7 out of 10-25
April 200788.5Good7 out of 10-25
February 200588.5Good7 out of 10-50
January 200388.5Good7 out of 10-50
January 200188.5Good7 out of 10-50
January 199988.5Good7 out of 10-50
February 199788.5Good7 out of 10-50
January 199588.5Good7 out of 10-50
January 199388.5Good7 out of 10-50
February 199188.5Good7 out of 10-50