US Bridges

Bowman Road over I-69

Fair

Lapeer County, Michigan · 2.2 MI SE of Imlay City · Structure no. 000000000005358

Built
1979
46 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
268 ft
2 main spans
Daily traffic
520
1995 count
Owner
State
State Highway Agency

About this bridge

Bowman Road over I-69 is a steel continuous stringer/multi-beam or girder carrying Bowman Road over I-69 in Lapeer County, Michigan. It was built in 1979, so it is 46 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 520 vehicles a day, roughly 2% of them trucks, projected to reach 500 by 1977. The structure is 268 ft (81.7 m) long and 40 ft wide.

Location

Open in Google Maps
CarriesBowman Road
CrossesI-69
Location2.2 MI SE of Imlay City
RouteCounty Highway 0
CountyLapeer County
StateMichigan
Coordinates43.00108, -83.04656
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.9 US tons
Inventory rating43.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length268 ft (81.7 m)
Longest span134 ft (40.8 m)
Deck width40 ft (12.1 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic520 (1995)
Projected traffic500 by 1977
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$121,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Bowman Road over I-69 built?

It was built in 1979, making it 46 years old in 2025.

What condition is Bowman Road over I-69 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 January 2024.

How much traffic does Bowman Road over I-69 carry?

About 520 vehicles per day (1995 count), of which roughly 2% are trucks.

How long is Bowman Road over I-69?

The structure is 268 ft (81.7 m) long with a longest span of 134 ft (40.8 m) and a deck 40 ft wide.

Who owns Bowman Road over I-69?

It is owned by the State Highway Agency.