Structure 2553 · Genesee County, MI

I-69 WB over Linden RD

Carries I-69 WB over Linden RD, 2.0 Mi E Of Swartz Creek.

Overall conditionPoor

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating4/9 · Poor
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT137 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 4/9 · sets the ratingSubstructure 6/9

137 ft end to end, longest span 68 ft. 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.

Built196858 years old
Length136.8 ft41.7 m
Daily traffic19,829counted 2007
Last inspectedApril 2024every 24 months

Location

StateMichigan
CountyGenesee
Location2.0 Mi E Of Swartz Creek
CarriesI-69 WB
CrossesLinden RD
Coordinates42.97013, -83.77185

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length136.8 ft (41.7 m)
Max Span67.9 ft (20.7 m)
Deck Width48.2 ft (14.7 m)
Deck Area613.0 sq m
Main Spans3
Year Built1968

Traffic

Avg Daily Traffic19,829 (2007)
Truck Traffic14%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000002553

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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