US Bridges

I-69 EB over Irish RD

Fair

Genesee County, Michigan · 4.0 MI E of Flint · Structure no. 000000000002599

Built
1970
55 years old, rebuilt 2013
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
176 ft
4 main spans
Daily traffic
23,125
2013 count
Owner
State
State Highway Agency

About this bridge

I-69 EB over Irish RD is a steel stringer/multi-beam or girder carrying I-69 EB over Irish RD in Genesee County, Michigan. It was built in 1970 and reconstructed in 2013, 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 23,125 vehicles a day, roughly 12% of them trucks, projected to reach 24,515 by 2033. The structure is 176 ft (53.5 m) long and 62 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-69 EB
CrossesIrish RD
Location4.0 MI E of Flint
RouteInterstate 69
CountyGenesee County
StateMichigan
Coordinates43.01648, -83.55565
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.5 US tons
Inventory rating49.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length176 ft (53.5 m)
Longest span58 ft (17.6 m)
Deck width62 ft (19 m)
Roadway width58 ft (17.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,125 (2013)
Projected traffic24,515 by 2033
Trucks12%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
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 EB over Irish RD built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2013.

What condition is I-69 EB over Irish RD 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 2023.

How much traffic does I-69 EB over Irish RD carry?

About 23,125 vehicles per day (2013 count), of which roughly 12% are trucks.

How long is I-69 EB over Irish RD?

The structure is 176 ft (53.5 m) long with a longest span of 58 ft (17.6 m) and a deck 62 ft wide.

Who owns I-69 EB over Irish RD?

It is owned by the State Highway Agency.