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LEATON ROAD over LITTLE SALT RIVER

Isabella County, Michigan

Map

Coordinates:
+43.48675, -84.70729
43°29'12" N, 84°42'26" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LEATON ROAD over LITTLE SALT RIVER
Structure number:000000000004333
Old structure number:37303H00015B010 (from 1992 edition)
Location:0.5 M S NW COR SEC 29 COE
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:13.8 ft. [4.2 m]
Total length:30.2 ft. [9.2 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:25.9 ft. [7.9 m]
Owner:County Highway Agency [02]
Year built:1970
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:2
Main spans material:Steel [3]
Main spans design:Culvert [19]
Deck type:Not applicable [N]
Wearing surface:Gravel [8]

Latest Available Inspection: May 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:181 [as of 2002]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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]
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 assessed or calculated scour conditions; field review indicates action is required. [4]
Sufficiency rating:79.5

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
May 2018Fair5 out of 1018179.5
May 2016Fair5 out of 1018179.5
May 2014Fair5 out of 1018179.5
May 2012Fair5 out of 1018179.5
June 2010Fair5 out of 1018179.5
June 2008Fair5 out of 1018179.5
July 2006Good7 out of 1018190.5
July 2004Good7 out of 1018194.5
July 2002-N out of 1018194.5
July 2000Good7 out of 1017291.4
July 1998Good7 out of 1017286.4
July 1996Good7 out of 1015086.5
July 1994Good7 out of 1015085.9