M-6(rmp B To I-96) over Thornapple River

Good Condition29 years old11,738 vehicles/day

Location

StateMichigan
CountyKent
LocationCascade Twp Sec 22
CarriesM-6(rmp B To I-96)
CrossesThornapple River
Coordinates42.88783, -85.48598

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1085.6 ft (330.9 m)
Max Span181.8 ft (55.4 m)
Deck Width46.6 ft (14.2 m)
Deck Area4698.8 sq m
Main Spans6
Year Built1997

Traffic

Avg Daily Traffic11,738 (2023)
Truck Traffic13%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000000012737

Nearby Bridges