US Bridges

I-69W to I-475N RM over I-475S on Rmp C

Good

Genesee County, Michigan · In Flint · Structure no. 000000000002664

Built
1970
55 years old, rebuilt 2022
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
137 ft
1 main span
Daily traffic
8,800
1988 count
Owner
State
State Highway Agency

About this bridge

I-69W to I-475N RM over I-475S on Rmp C is a steel stringer/multi-beam or girder carrying I-69W to I-475N RM over I-475S on Rmp C in Genesee County, Michigan. It was built in 1970 and reconstructed in 2022, so it is 55 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,800 vehicles a day, roughly 7% of them trucks, projected to reach 10,120 by 2008. The structure is 137 ft (41.8 m) long and 51 ft wide.

Location

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CarriesI-69W to I-475N RM
CrossesI-475S on Rmp C
LocationIn Flint
RouteInterstate 69
CountyGenesee County
StateMichigan
Coordinates43.01365, -83.68091
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.1 US tons
Inventory rating55.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length137 ft (41.8 m)
Longest span133 ft (40.5 m)
Deck width51 ft (15.6 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,800 (1988)
Projected traffic10,120 by 2008
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-69W to I-475N RM over I-475S on Rmp C built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2022.

What condition is I-69W to I-475N RM over I-475S on Rmp C in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does I-69W to I-475N RM over I-475S on Rmp C carry?

About 8,800 vehicles per day (1988 count), of which roughly 7% are trucks.

How long is I-69W to I-475N RM over I-475S on Rmp C?

The structure is 137 ft (41.8 m) long with a longest span of 133 ft (40.5 m) and a deck 51 ft wide.

Who owns I-69W to I-475N RM over I-475S on Rmp C?

It is owned by the State Highway Agency.