Structure 1334 · Calhoun County, MI

25 1/2 Mi Road over S Br Kalamazoo River

Carries 25 1/2 Mi Road over S Br Kalamazoo River, Homer Twp Sec 5.

Overall conditionGood

Set by its lowest-rated component: Substructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT112 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

112 ft end to end. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built20188 years old
Length111.5 ft34 m
Daily traffic981counted 2018
Last inspectedJanuary 2025every 20 months

Location

StateMichigan
CountyCalhoun
LocationHomer Twp Sec 5
Carries25 1/2 Mi Road
CrossesS Br Kalamazoo River
Coordinates42.14922, -84.80466

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length111.5 ft (34 m)
Max Span107.0 ft (32.6 m)
Deck Width35.4 ft (10.8 m)
Deck Area367.2 sq m
Main Spans1
Year Built2018

Traffic

Avg Daily Traffic981 (2018)
Truck Traffic12%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 20 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000001334

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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