US Bridges

I-69 EB over S Br Flint River

Fair

Lapeer County, Michigan · SE of Lapeer · Structure no. 000000000005334

Built
1983
42 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
133 ft
3 main spans
Daily traffic
12,398
2007 count
Owner
State
State Highway Agency

About this bridge

I-69 EB over S Br Flint River is a prestressed concrete stringer/multi-beam or girder carrying I-69 EB over S Br Flint River in Lapeer County, Michigan. It was built in 1983, so it is 42 years old, younger 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 12,398 vehicles a day, roughly 18% of them trucks, projected to reach 14,061 by 2018. The structure is 133 ft (40.5 m) long and 48 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesI-69 EB
CrossesS Br Flint River
LocationSE of Lapeer
RouteInterstate 69
CountyLapeer County
StateMichigan
Coordinates43.01145, -83.26549
Functional classRural 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length133 ft (40.5 m)
Longest span61 ft (18.5 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,398 (2007)
Projected traffic14,061 by 2018
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-69 EB over S Br Flint River built?

It was built in 1983, making it 42 years old in 2025.

What condition is I-69 EB over S Br Flint River 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 May 2023.

How much traffic does I-69 EB over S Br Flint River carry?

About 12,398 vehicles per day (2007 count), of which roughly 18% are trucks.

How long is I-69 EB over S Br Flint River?

The structure is 133 ft (40.5 m) long with a longest span of 61 ft (18.5 m) and a deck 48 ft wide.

Who owns I-69 EB over S Br Flint River?

It is owned by the State Highway Agency.