US Bridges

41 Mile Road over Big Cedar River

FairPosted for load

Menominee County, Michigan · 1 Mi. NW of Powers · Structure no. 000000000006871

Built
1928
97 years old
Condition
Fair
inspected June 2023
Type
Girder and Floorbeam System
Concrete
Length
61 ft
1 main span
Daily traffic
50
2005 count
Owner
County
County Highway Agency

About this bridge

41 Mile Road over Big Cedar River is a concrete girder and floorbeam system carrying 41 Mile Road over Big Cedar River in Menominee County, Michigan. It was built in 1928, so it is 97 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, projected to reach 65 by 2019. The structure is 61 ft (18.6 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries41 Mile Road
CrossesBig Cedar River
Location1 Mi. NW of Powers
RouteCounty Highway 0
CountyMenominee County
StateMichigan
Coordinates45.70973, -87.53827
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.5 US tons
Inventory rating13.6 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length61 ft (18.6 m)
Longest span58 ft (17.6 m)
Deck width28 ft (8.6 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2005)
Projected traffic65 by 2019
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$30,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 41 Mile Road over Big Cedar River built?

It was built in 1928, making it 97 years old in 2025.

What condition is 41 Mile Road over Big Cedar River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does 41 Mile Road over Big Cedar River carry?

About 50 vehicles per day (2005 count).

How long is 41 Mile Road over Big Cedar River?

The structure is 61 ft (18.6 m) long with a longest span of 58 ft (17.6 m) and a deck 28 ft wide.

Who owns 41 Mile Road over Big Cedar River?

It is owned by the County Highway Agency.