Structure 6367 · Macomb County, MI

28 Mile Road over Camp Brook Drain

Carries 28 Mile Road over Camp Brook Drain, 1.2 Mi E Of Romeo Plank.

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 overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT26 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

26 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 box-beam bridge.

Built199531 years old
Length25.6 ft7.8 m
Daily traffic110counted 2021
Last inspectedJuly 2024every 24 months

Location

StateMichigan
CountyMacomb
Location1.2 Mi E Of Romeo Plank
Carries28 Mile Road
CrossesCamp Brook Drain
Coordinates42.74583, -82.93496

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length25.6 ft (7.8 m)
Max Span23.3 ft (7.1 m)
Deck Width44.0 ft (13.4 m)
Deck Area104.5 sq m
Main Spans1
Year Built1995

Traffic

Avg Daily Traffic110 (2021)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000006367

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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