US Bridges

31 Mile Road over Little Cedar River

Poor

Menominee County, Michigan · 2 Mi. NW of Bagley · Structure no. 000000000006868

Built
1934
91 years old
Condition
Poor
inspected June 2024
Type
Culvert
Concrete
Length
29 ft
3 main spans
Daily traffic
92
1998 count
Owner
County
County Highway Agency

About this bridge

31 Mile Road over Little Cedar River is a concrete culvert carrying 31 Mile Road over Little Cedar River in Menominee County, Michigan. It was built in 1934, so it is 91 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 92 vehicles a day, projected to reach 130 by 2019. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries31 Mile Road
CrossesLittle Cedar River
Location2 Mi. NW of Bagley
RouteCounty Highway 0
CountyMenominee County
StateMichigan
Coordinates45.56556, -87.62911
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.1 US tons
Inventory rating31.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic92 (1998)
Projected traffic130 by 2019
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$82,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 31 Mile Road over Little Cedar River built?

It was built in 1934, making it 91 years old in 2025.

What condition is 31 Mile Road over Little Cedar River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does 31 Mile Road over Little Cedar River carry?

About 92 vehicles per day (1998 count).

How long is 31 Mile Road over Little Cedar River?

The structure is 29 ft (8.8 m) long with a longest span of 8 ft (2.4 m).

Who owns 31 Mile Road over Little Cedar River?

It is owned by the County Highway Agency.