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MASON ROAD over S BR SHIAWASSEE RIVER

Map

Coordinates:
+42.60001, -83.96361
42°36'00" N, 83°57'49" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:MASON ROAD over S BR SHIAWASSEE RIVER
Structure number:000000000005816
Old structure number:47200017000B040 (from 1992 edition)
Location:SEC 34 HOWELL TWP
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:32.8 ft. [10.0 m]
Total length:35.8 ft. [10.9 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:42.7 ft. [13.0 m]
Owner:County Highway Agency [02]
Year built:1986
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Main span material:Prestressed concrete [5]
Main span design:Tee beam [04]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: June 2018

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:4,021 [as of 2010]
Truck traffic:3% of total traffic
Deck condition:Critical [2 out of 9]
Superstructure condition:Critical [2 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Basically intolerable requiring high priority of replacement [2]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present desirable criteria [8]
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 assessed or calculated scour condition. [5]
Sufficiency rating:32.2

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2018PoorCriticalCriticalVery Good402132.2
June 2017PoorCriticalCriticalVery Good402132.2
May 2016PoorCriticalCriticalVery Good302033.1
May 2015PoorSeriousSeriousVery Good327046.5
August 2013PoorSeriousSeriousVery Good327046.5
August 2011PoorSeriousSeriousVery Good333044.9
December 2009PoorSeriousSeriousVery Good351044.8
September 2008PoorSeriousSeriousVery Good479844.0
December 2006PoorSeriousSeriousVery Good437044.3
October 2004GoodVery GoodExcellentExcellent437094.7
October 2002GoodExcellentExcellentExcellent437094.7
August 1998GoodExcellentExcellentExcellent386794.9
July 1996GoodExcellentExcellentExcellent386794.9
July 1995GoodExcellentExcellentExcellent270895.1
July 1993GoodExcellentExcellentExcellent270899.2
June 1991GoodExcellentExcellentExcellent270899.2