M-20 over Chippewa River

Good Condition30 years old10,842 vehicles/day

Location

StateMichigan
CountyIsabella
LocationIn Mt Pleasant
CarriesM-20
CrossesChippewa River
Coordinates43.59709, -84.78625

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure8 (Very Good)
Channel/Waterway7 (Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length129.9 ft (39.6 m)
Max Span125.7 ft (38.3 m)
Deck Width65.0 ft (19.8 m)
Deck Area784.1 sq m
Main Spans1
Year Built1996

Traffic

Avg Daily Traffic10,842 (2007)
Truck Traffic3%
Lanes On Bridge4

Inspection & Ownership

Last Inspection323
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000000004265

Nearby Bridges