US Bridges

I-69 WB over I-475 & I-475 Ramps

Fair

Genesee County, Michigan · In Flint Lvl 2 · Structure no. 000000000002657

Built
1970
55 years old, rebuilt 2021
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
190 ft
2 main spans
Daily traffic
46,500
2022 count
Owner
State
State Highway Agency

About this bridge

I-69 WB over I-475 & I-475 Ramps is a steel stringer/multi-beam or girder carrying I-69 WB over I-475 & I-475 Ramps in Genesee County, Michigan. It was built in 1970 and reconstructed in 2021, 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 46,500 vehicles a day, roughly 7% of them trucks, projected to reach 53,475 by 2042. The structure is 190 ft (58 m) long and 70 ft wide.

Location

Open in Google Maps
CarriesI-69 WB
CrossesI-475 & I-475 Ramps
LocationIn Flint Lvl 2
RouteInterstate 69
CountyGenesee County
StateMichigan
Coordinates43.01047, -83.67938
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.9 US tons
Inventory rating51.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length190 ft (58 m)
Longest span98 ft (29.8 m)
Deck width70 ft (21.3 m)
Roadway width66 ft (20.2 m)
Vertical clearance over deck15 ft (4.4 m)

Traffic and service

Average daily traffic46,500 (2022)
Projected traffic53,475 by 2042
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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-69 WB over I-475 & I-475 Ramps built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2021.

What condition is I-69 WB over I-475 & I-475 Ramps in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.

How much traffic does I-69 WB over I-475 & I-475 Ramps carry?

About 46,500 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is I-69 WB over I-475 & I-475 Ramps?

The structure is 190 ft (58 m) long with a longest span of 98 ft (29.8 m) and a deck 70 ft wide.

Who owns I-69 WB over I-475 & I-475 Ramps?

It is owned by the State Highway Agency.