US Bridges

Route 374 over Menominee River

Fair

Menominee County, Michigan · 4 MI W of Nathan · Structure no. 000000000006820

Built
1971
54 years old, rebuilt 2002
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
380 ft
5 main spans
Daily traffic
526
1998 count
Owner
County
County Highway Agency

About this bridge

Route 374 over Menominee River is a prestressed concrete continuous box beam or girders - multiple carrying Route 374 over Menominee River in Menominee County, Michigan. It was built in 1971 and reconstructed in 2002, so it is 54 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 526 vehicles a day, projected to reach 230 by 2019. The structure is 380 ft (115.8 m) long and 34 ft wide. If it were closed, the detour would be 47.8 mi (77 km).

Location

Open in Google Maps
CarriesRoute 374
CrossesMenominee River
Location4 MI W of Nathan
RouteCounty Highway 5556
CountyMenominee County
StateMichigan
Coordinates45.57947, -87.7868
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating29.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length380 ft (115.8 m)
Longest span75 ft (22.8 m)
Deck width34 ft (10.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic526 (1998)
Projected traffic230 by 2019
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed47.8 mi (77 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 Route 374 over Menominee River built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2002.

What condition is Route 374 over Menominee 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 Route 374 over Menominee River carry?

About 526 vehicles per day (1998 count).

How long is Route 374 over Menominee River?

The structure is 380 ft (115.8 m) long with a longest span of 75 ft (22.8 m) and a deck 34 ft wide.

Who owns Route 374 over Menominee River?

It is owned by the County Highway Agency.