US Bridges

Stanley Road over South Br. Flint River

Good

Lapeer County, Michigan · Sec. 11-14 Oregon Twp. · Structure no. 000000000005465

Built
1986
39 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
100 ft
2 main spans
Daily traffic
120
2019 count
Owner
County
County Highway Agency

About this bridge

Stanley Road over South Br. Flint River is a prestressed concrete box beam or girders - multiple carrying Stanley Road over South Br. Flint River in Lapeer County, Michigan. It was built in 1986, so it is 39 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.

It carries about 120 vehicles a day, projected to reach 146 by 2039. The structure is 100 ft (30.4 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesStanley Road
CrossesSouth Br. Flint River
LocationSec. 11-14 Oregon Twp.
RouteCounty Highway 0
Coordinates43.11458, -83.37156
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 statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating67.5 US tons
Inventory rating40.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length100 ft (30.4 m)
Longest span48 ft (14.6 m)
Deck width31 ft (9.4 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2019)
Projected traffic146 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 Stanley Road over South Br. Flint River built?

It was built in 1986, making it 39 years old in 2025.

What condition is Stanley Road over South 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 Stanley Road over South Br. Flint River carry?

About 120 vehicles per day (2019 count).

How long is Stanley Road over South Br. Flint River?

The structure is 100 ft (30.4 m) long with a longest span of 48 ft (14.6 m) and a deck 31 ft wide.

Who owns Stanley Road over South Br. Flint River?

It is owned by the County Highway Agency.