Structure 8268 · Oakland County, MI

Martin Luther King over Clinton River

Carries Martin Luther King over Clinton River, 1/8 Mi N Inter M-59 & Ebl.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT31 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

31 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 rigid-frame bridge.

Built1938rebuilt 1973
Length30.5 ft9.3 m
Daily traffic22,953counted 2024
Last inspectedJuly 2024every 24 months

Location

StateMichigan
CountyOakland
Location1/8 Mi N Inter M-59 & Ebl
CarriesMartin Luther King
CrossesClinton River
Coordinates42.64629, -83.27003

Physical Characteristics

MaterialConcrete
DesignFrame
Total Length30.5 ft (9.3 m)
Max Span29.9 ft (9.1 m)
Deck Width74.5 ft (22.7 m)
Deck Area211.1 sq m
Main Spans1
Year Built1938 (reconstructed 1973)

Traffic

Avg Daily Traffic22,953 (2024)
Lanes On Bridge5

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000008268

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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