Structure 7927 · Oakland County, MI

Lincoln Drive over I-696

Carries Lincoln Drive over I-696, City Of Southfield.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT184 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

184 ft end to end, longest span 92 ft: about 3 semi-trucks nose to tail. Lengths and the semi-truck 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.

Built198739 years old
Length184.1 ft56.1 m
Daily traffic1,500counted 1982
Last inspectedJuly 2024every 24 months

Location

StateMichigan
CountyOakland
LocationCity Of Southfield
CarriesLincoln Drive
CrossesI-696
Coordinates42.48100, -83.20708

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length184.1 ft (56.1 m)
Max Span91.9 ft (28 m)
Deck Width50.9 ft (15.5 m)
Deck Area869.5 sq m
Main Spans2
Year Built1987

Traffic

Avg Daily Traffic1,500 (1982)
Truck Traffic3%
Lanes On Bridge2
Lanes Under Bridge10

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000007927

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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