US Bridges

Carpenter Road over Flint River

Good

Genesee County, Michigan · Bet Bray & Branch Roads · Structure no. 000000000002725

Built
1948
77 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
130 ft
2 main spans
Daily traffic
6,830
2019 count
Owner
County
County Highway Agency

About this bridge

Carpenter Road over Flint River is a prestressed concrete box beam or girders - single or spread carrying Carpenter Road over Flint River in Genesee County, Michigan. It was built in 1948, so it is 77 years old, older 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.

It carries about 6,830 vehicles a day, roughly 8% of them trucks, projected to reach 7,380 by 2039. The structure is 130 ft (39.6 m) long and 42 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCarpenter Road
CrossesFlint River
LocationBet Bray & Branch Roads
RouteCounty Highway 2002
CountyGenesee County
StateMichigan
Coordinates43.07636, -83.65427
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadGreater than HL 93
Structure length130 ft (39.6 m)
Longest span64 ft (19.4 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,830 (2019)
Projected traffic7,380 by 2039
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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$688,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Carpenter Road over Flint River built?

It was built in 1948, making it 77 years old in 2025.

What condition is Carpenter Road over 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 November 2023.

How much traffic does Carpenter Road over Flint River carry?

About 6,830 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is Carpenter Road over Flint River?

The structure is 130 ft (39.6 m) long with a longest span of 64 ft (19.4 m) and a deck 42 ft wide.

Who owns Carpenter Road over Flint River?

It is owned by the County Highway Agency.