Structure 2673 · Genesee County, MI

I-475 over Davison - Broadway Aves

Carries I-475 over Davison - Broadway Aves, In Flint.

Overall conditionPoor

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

How ratings work
Deck5/9 · Fair
Superstructure6/9 · Satisfactory
Substructuresets the rating4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT440 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 6/9Substructure 4/9 · sets the rating

440 ft end to end, longest span 79 ft: about 6 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.

Built1976rebuilt 2001
Length440.0 ft134.1 m
Daily traffic63,400counted 2007
Last inspectedApril 2024every 24 months

Location

StateMichigan
CountyGenesee
LocationIn Flint
CarriesI-475
CrossesDavison - Broadway Aves
Coordinates43.03417, -83.67669

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length440.0 ft (134.1 m)
Max Span78.7 ft (24 m)
Deck Width124.7 ft (38 m)
Deck Area5095.8 sq m
Main Spans7
Year Built1976 (reconstructed 2001)

Traffic

Avg Daily Traffic63,400 (2007)
Truck Traffic3%
Lanes On Bridge6
Lanes Under Bridge4

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 Number000000000002673

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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