Structure 2672 · Genesee County, MI

I-475 over Chavez DR

Carries I-475 over Chavez DR, 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 FT169 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 6/9Substructure 4/9 · sets the rating

169 ft end to end, longest span 76 ft: about 2 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.

Built197650 years old
Length169.0 ft51.5 m
Daily traffic63,400counted 2007
Last inspectedApril 2024every 24 months

Location

StateMichigan
CountyGenesee
LocationIn Flint
CarriesI-475
CrossesChavez DR
Coordinates43.03171, -83.67707

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length169.0 ft (51.5 m)
Max Span75.8 ft (23.1 m)
Deck Width169.9 ft (51.8 m)
Deck Area2667.7 sq m
Main Spans3
Year Built1976

Traffic

Avg Daily Traffic63,400 (2007)
Truck Traffic2%
Lanes On Bridge4
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 Number000000000002672

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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