Structure 13496 · Livingston County, MI

Kensington RD over Huron River

Carries Kensington RD over Huron River, Green Oak Twp Sec 1.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT49 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

49 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.

Built195769 years old
Length48.9 ft14.9 m
Daily traffic9,370counted 2006
Last inspectedAugust 2023every 24 months

Location

StateMichigan
CountyLivingston
LocationGreen Oak Twp Sec 1
CarriesKensington RD
CrossesHuron River
Coordinates42.51362, -83.68986

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length48.9 ft (14.9 m)
Max Span45.3 ft (13.8 m)
Deck Width35.4 ft (10.8 m)
Deck Area160.9 sq m
Main Spans1
Year Built1957

Traffic

Avg Daily Traffic9,370 (2006)
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000013496

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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