US Bridges

I-69 EB over Bath RD

Fair

Shiawassee County, Michigan · 2.5 MI West of Perry · Structure no. 000000000009760

Built
1988
37 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
170 ft
3 main spans
Daily traffic
20,138
2020 count
Owner
State
State Highway Agency

About this bridge

I-69 EB over Bath RD is a prestressed concrete stringer/multi-beam or girder carrying I-69 EB over Bath RD in Shiawassee County, Michigan. It was built in 1988, so it is 37 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 20,138 vehicles a day, roughly 15% of them trucks, projected to reach 22,263 by 2040. The structure is 170 ft (51.8 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
CrossesBath RD
Location2.5 MI West of Perry
RouteInterstate 69
CountyShiawassee County
StateMichigan
Coordinates42.8196, -84.27064
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating43.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length170 ft (51.8 m)
Longest span81 ft (24.7 m)
Deck width48 ft (14.7 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,138 (2020)
Projected traffic22,263 by 2040
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-69 EB over Bath RD built?

It was built in 1988, making it 37 years old in 2025.

What condition is I-69 EB over Bath 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 July 2023.

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

About 20,138 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is I-69 EB over Bath RD?

The structure is 170 ft (51.8 m) long with a longest span of 81 ft (24.7 m) and a deck 48 ft wide.

Who owns I-69 EB over Bath RD?

It is owned by the State Highway Agency.