US Bridges

Wilcox Road over Mid. Branch Macon Drain

Good

Monroe County, Michigan · 0.2 MI N of Kent Road · Structure no. 000000000007337

Built
1976
49 years old
Condition
Good
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
210
2020 count
Owner
County
County Highway Agency

About this bridge

Wilcox Road over Mid. Branch Macon Drain is a prestressed concrete box beam or girders - multiple carrying Wilcox Road over Mid. Branch Macon Drain in Monroe County, Michigan. It was built in 1976, so it is 49 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 210 vehicles a day, roughly 21% of them trucks, projected to reach 241 by 2040. The structure is 41 ft (12.5 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesWilcox Road
CrossesMid. Branch Macon Drain
Location0.2 MI N of Kent Road
RouteCounty Highway 0
Coordinates41.98083, -83.68769
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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating82.5 US tons
Inventory rating63.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span39 ft (11.8 m)
Deck width33 ft (10.2 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2020)
Projected traffic241 by 2040
Trucks21%
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 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 Mid. Branch Macon Drain built?

It was built in 1976, making it 49 years old in 2025.

What condition is Wilcox Road over Mid. Branch Macon Drain 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 Mid. Branch Macon Drain carry?

About 210 vehicles per day (2020 count), of which roughly 21% are trucks.

How long is Wilcox Road over Mid. Branch Macon Drain?

The structure is 41 ft (12.5 m) long with a longest span of 39 ft (11.8 m) and a deck 33 ft wide.

Who owns Wilcox Road over Mid. Branch Macon Drain?

It is owned by the County Highway Agency.