US Bridges

Millville Road over South Br Flint River

Fair

Lapeer County, Michigan · Sec 19 Mayfield Twp · Structure no. 000000000005444

Built
1978
47 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
91 ft
2 main spans
Daily traffic
2,320
2019 count
Owner
County
County Highway Agency

About this bridge

Millville Road over South Br Flint River is a prestressed concrete box beam or girders - multiple carrying Millville Road over South Br Flint River in Lapeer County, Michigan. It was built in 1978, so it is 47 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 5 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 2,320 vehicles a day, projected to reach 2,831 by 2039. The structure is 91 ft (27.7 m) long and 30 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesMillville Road
CrossesSouth Br Flint River
LocationSec 19 Mayfield Twp
RouteCounty Highway 0
CountyLapeer County
StateMichigan
Coordinates43.09225, -83.34511
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71.4 US tons
Inventory rating42.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length91 ft (27.7 m)
Longest span44 ft (13.4 m)
Deck width30 ft (9.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,320 (2019)
Projected traffic2,831 by 2039
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Millville Road over South Br Flint River built?

It was built in 1978, making it 47 years old in 2025.

What condition is Millville Road over South 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 July 2023.

How much traffic does Millville Road over South Br Flint River carry?

About 2,320 vehicles per day (2019 count).

How long is Millville Road over South Br Flint River?

The structure is 91 ft (27.7 m) long with a longest span of 44 ft (13.4 m) and a deck 30 ft wide.

Who owns Millville Road over South Br Flint River?

It is owned by the County Highway Agency.