US Bridges

Wilcox Road over South Branch Macon River

Good

Monroe County, Michigan · 1.1 MI N of M 50 · Structure no. 000000000007336

Built
2008
17 years old
Condition
Good
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
61 ft
1 main span
Daily traffic
460
2006 count
Owner
County
County Highway Agency

About this bridge

Wilcox Road over South Branch Macon River is a prestressed concrete box beam or girders - multiple carrying Wilcox Road over South Branch Macon River in Monroe County, Michigan. It was built in 2008, so it is 17 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 460 vehicles a day, roughly 12% of them trucks, projected to reach 529 by 2026. The structure is 61 ft (18.7 m) long and 31 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesWilcox Road
CrossesSouth Branch Macon River
Location1.1 MI N of M 50
RouteCounty Highway 0
Coordinates41.97721, -83.68757
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating107.1 US tons
Inventory rating76.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length61 ft (18.7 m)
Longest span60 ft (18.3 m)
Deck width31 ft (9.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic460 (2006)
Projected traffic529 by 2026
Trucks12%
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 Wilcox Road over South Branch Macon River built?

It was built in 2008, making it 17 years old in 2025.

What condition is Wilcox Road over South Branch Macon 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 May 2024.

How much traffic does Wilcox Road over South Branch Macon River carry?

About 460 vehicles per day (2006 count), of which roughly 12% are trucks.

How long is Wilcox Road over South Branch Macon River?

The structure is 61 ft (18.7 m) long with a longest span of 60 ft (18.3 m) and a deck 31 ft wide.

Who owns Wilcox Road over South Branch Macon River?

It is owned by the County Highway Agency.