Structure 12070 · Wayne County, MI

E N Hines Drive over Middle Rouge River

Carries E N Hines Drive over Middle Rouge River, Plymouth Twp E/i-275.

Overall conditionPoor

Set by its lowest-rated component: Deck and Superstructure at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructuresets the rating4/9 · Poor
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT96 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 4/9 · sets the ratingSubstructure 6/9

96 ft end to end, longest span 52 ft. 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 tee-beam bridge.

Built1932rebuilt 1968
Length96.1 ft29.3 m
Daily traffic7,365counted 1996
Last inspectedApril 2024every 12 months

Location

StateMichigan
CountyWayne
LocationPlymouth Twp E/i-275
CarriesE N Hines Drive
CrossesMiddle Rouge River
Coordinates42.37024, -83.43282

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length96.1 ft (29.3 m)
Max Span52.5 ft (16 m)
Deck Width51.8 ft (15.8 m)
Deck Area462.9 sq m
Main Spans3
Year Built1932 (reconstructed 1968)

Traffic

Avg Daily Traffic7,365 (1996)
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000012070

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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