US Bridges

I-69 Ramp F over I-75

Fair

Genesee County, Michigan · WB I-69 Ramp to SB I-75 · Structure no. 000000000002546

Built
1960
65 years old, rebuilt 2004
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
210 ft
4 main spans
Daily traffic
4,800
1988 count
Owner
State
State Highway Agency

About this bridge

I-69 Ramp F over I-75 is a prestressed concrete stringer/multi-beam or girder carrying I-69 Ramp F over I-75 in Genesee County, Michigan. It was built in 1960 and reconstructed in 2004, so it is 65 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 5 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 4,800 vehicles a day, roughly 12% of them trucks, projected to reach 5,520 by 2008. The structure is 210 ft (64 m) long and 27 ft wide.

Location

Open in Google Maps
CarriesI-69 Ramp F
CrossesI-75
LocationWB I-69 Ramp to SB I-75
RouteInterstate 69
CountyGenesee County
StateMichigan
Coordinates42.985, -83.7335
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating31.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length210 ft (64 m)
Longest span70 ft (21.2 m)
Deck width27 ft (8.2 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,800 (1988)
Projected traffic5,520 by 2008
Trucks12%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 Ramp F over I-75 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2004.

What condition is I-69 Ramp F over I-75 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 September 2024.

How much traffic does I-69 Ramp F over I-75 carry?

About 4,800 vehicles per day (1988 count), of which roughly 12% are trucks.

How long is I-69 Ramp F over I-75?

The structure is 210 ft (64 m) long with a longest span of 70 ft (21.2 m) and a deck 27 ft wide.

Who owns I-69 Ramp F over I-75?

It is owned by the State Highway Agency.