US Bridges

Barnes Lake Road over North Br. Flint River

GoodPosted for load

Lapeer County, Michigan · Sec. 13-24 Marathon Twp. · Structure no. 000000000005439

Built
1994
31 years old
Condition
Good
inspected July 2023
Type
Tee Beam
Prestressed Concrete
Length
102 ft
2 main spans
Daily traffic
358
2019 count
Owner
County
County Highway Agency

About this bridge

Barnes Lake Road over North Br. Flint River is a prestressed concrete tee beam carrying Barnes Lake Road over North Br. Flint River in Lapeer County, Michigan. It was built in 1994, so it is 31 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 358 vehicles a day, projected to reach 437 by 2039. The structure is 102 ft (31.1 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesBarnes Lake Road
CrossesNorth Br. Flint River
LocationSec. 13-24 Marathon Twp.
RouteCounty Highway 0
CountyLapeer County
StateMichigan
Coordinates43.1885, -83.36714
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating37.5 US tons
Inventory rating22.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length102 ft (31.1 m)
Longest span98 ft (29.8 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic358 (2019)
Projected traffic437 by 2039
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Barnes Lake Road over North Br. Flint River built?

It was built in 1994, making it 31 years old in 2025.

What condition is Barnes Lake Road over North Br. Flint River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does Barnes Lake Road over North Br. Flint River carry?

About 358 vehicles per day (2019 count).

How long is Barnes Lake Road over North Br. Flint River?

The structure is 102 ft (31.1 m) long with a longest span of 98 ft (29.8 m) and a deck 33 ft wide.

Who owns Barnes Lake Road over North Br. Flint River?

It is owned by the County Highway Agency.