US Bridges

River Road over Cedar River

Fair

Menominee County, Michigan · 3 Mi. N of Spalding · Structure no. 000000000006874

Built
1973
52 years old
Condition
Fair
inspected June 2023
Type
Culvert
Steel
Length
44 ft
3 main spans
Daily traffic
50
2005 count
Owner
County
County Highway Agency

About this bridge

River Road over Cedar River is a steel culvert carrying River Road over Cedar River in Menominee County, Michigan. It was built in 1973, so it is 52 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.

It carries about 50 vehicles a day, projected to reach 60 by 2019. The structure is 44 ft (13.4 m) long. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesRiver Road
CrossesCedar River
Location3 Mi. N of Spalding
RouteCounty Highway 0
CountyMenominee County
StateMichigan
Coordinates45.73832, -87.52814
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: 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 rating35.7 US tons
Inventory rating21.4 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length44 ft (13.4 m)
Longest span15 ft (4.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2005)
Projected traffic60 by 2019
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 River Road over Cedar River built?

It was built in 1973, making it 52 years old in 2025.

What condition is River Road over 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 River Road over Cedar River carry?

About 50 vehicles per day (2005 count).

How long is River Road over Cedar River?

The structure is 44 ft (13.4 m) long with a longest span of 15 ft (4.5 m).

Who owns River Road over Cedar River?

It is owned by the County Highway Agency.