M-6 Ramp A over I-96 & Thornapple River

Fair Condition25 years old11,894 vehicles/day

Location

StateMichigan
CountyKent
LocationCascade Twp Sec 22
CarriesM-6 Ramp A
CrossesI-96 & Thornapple River
Coordinates42.88876, -85.48594

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure7 (Good)
Substructure5 (Fair)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1204.4 ft (367.1 m)
Max Span230.6 ft (70.3 m)
Deck Width49.9 ft (15.2 m)
Deck Area5579.9 sq m
Main Spans6
Year Built2001

Traffic

Avg Daily Traffic11,894 (2023)
Truck Traffic13%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000000012901

Nearby Bridges

I-96 WB over Thornapple River 0.0 mi Fair I-96 EB over Thornapple River 0.0 mi Fair M-6(rmp B To I-96) over Thornapple River 0.1 mi Good I-96 WB To WB M-6 over M-6 EB To I-96 WB 0.4 mi Fair M-6 EB To I-96 WB over I-96 0.4 mi Good E M-6 Rmps To I-96 over Csx Rr 0.5 mi Good M-6 WB over Csx Rr 0.5 mi Good M-6 EB over 48th Street 0.8 mi Fair M-6 WB over 48th Street 0.8 mi Good 48th Street over Thornapple River 0.9 mi Good