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GLENBROOK ROAD over PORTAGE RIVER

Livingston County, Michigan

Map

Coordinates:
+42.42482, -84.00374
42°25'29" N, 84°00'13" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:GLENBROOK ROAD over PORTAGE RIVER
Structure number:000000000005833
Old structure number:47200037000B010 (from 1992 edition)
Location:SEC 31-32 PUTNAM TWP
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:9.8 ft. [3.0 m]
Total length:24.0 ft. [7.3 m]
Roadway width between curbs:34.8 ft. [10.6 m]
Deck width edge-to-edge:35.1 ft. [10.7 m]
Skew angle:45°
Owner:County Highway Agency [02]
Year built:1960
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:2
Main spans material:Steel [3]
Main spans design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: October 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:640 [as of 2014]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
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 with "unknown" foundation that has not been evaluated for scour. [U]
Sufficiency rating:85.6

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
October 2018Fair5 out of 1064085.6
October 2016Fair5 out of 1064085.6
October 2014Fair5 out of 1064085.6
October 2012Fair5 out of 1058085.7
October 2010Fair5 out of 1073061.8
October 2008Fair5 out of 1073061.8
August 2006Good7 out of 1085871.8
August 2004Good7 out of 1085871.8
July 2002-N out of 1085871.8
March 2000Good7 out of 1093971.7
September 1997Good7 out of 1093971.7
September 1995Good7 out of 1021087.8
October 1993Good7 out of 1021087.8
June 1991Good7 out of 1021087.8