US Bridges

Wadhams Road over Pine River

Good

St. Clair County, Michigan · Sec. 15-16 St. Clair Twp. · Structure no. 000000000010107

Built
2007
18 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
146 ft
1 main span
Daily traffic
5,196
2022 count
Owner
County
County Highway Agency

About this bridge

Wadhams Road over Pine River is a prestressed concrete stringer/multi-beam or girder carrying Wadhams Road over Pine River in St. Clair County, Michigan. It was built in 2007, so it is 18 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 5,196 vehicles a day, roughly 10% of them trucks, projected to reach 6,333 by 2042. The structure is 146 ft (44.5 m) long and 43 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesWadhams Road
CrossesPine River
LocationSec. 15-16 St. Clair Twp.
RouteCounty Highway 7769
CountySt. Clair County
StateMichigan
Coordinates42.87135, -82.55765
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.9 US tons
Inventory rating35.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length146 ft (44.5 m)
Longest span143 ft (43.7 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,196 (2022)
Projected traffic6,333 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Wadhams Road over Pine River built?

It was built in 2007, making it 18 years old in 2025.

What condition is Wadhams Road over Pine 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 December 2023.

How much traffic does Wadhams Road over Pine River carry?

About 5,196 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Wadhams Road over Pine River?

The structure is 146 ft (44.5 m) long with a longest span of 143 ft (43.7 m) and a deck 43 ft wide.

Who owns Wadhams Road over Pine River?

It is owned by the County Highway Agency.