N Twentieth ST over Kalamazoo River

Fair Condition63 years old6,500 vehicles/day

Location

StateMichigan
CountyCalhoun
Location0.2 Mi S Of Michigan AVE
CarriesN Twentieth ST
CrossesKalamazoo River
Coordinates42.33480, -85.21941

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway8 (Very Good)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length335.0 ft (102.1 m)
Max Span42.0 ft (12.8 m)
Deck Width58.4 ft (17.8 m)
Deck Area1817.4 sq m
Main Spans8
Year Built1963 (reconstructed 1985)

Traffic

Avg Daily Traffic6,500 (2022)
Truck Traffic17%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000000001401

Nearby Bridges