US Bridges

Cth IRR (cth M) over Wolf River

Fair

Menominee County, Wisconsin · 0.2M W JCT Sth 55 · Structure no. P73090700000000

Built
1979
46 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
287 ft
4 main spans
Daily traffic
117
2022 count
Owner
County
County Highway Agency

About this bridge

Cth IRR (cth M) over Wolf River is a prestressed concrete continuous stringer/multi-beam or girder carrying Cth IRR (cth M) over Wolf River in Menominee County, Wisconsin. It was built in 1979, so it is 46 years old, older than the Wisconsin average of 40.3 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 117 vehicles a day, projected to reach 128 by 2043. The structure is 287 ft (87.6 m) long and 34 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesCth IRR (cth M)
CrossesWolf River
Location0.2M W JCT Sth 55
RouteCounty Highway 0M
CountyMenominee County
StateWisconsin
Coordinates45.00506, -88.6176
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.2 US tons
Inventory rating30.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length287 ft (87.6 m)
Longest span75 ft (22.9 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic117 (2022)
Projected traffic128 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Cth IRR (cth M) over Wolf River built?

It was built in 1979, making it 46 years old in 2025.

What condition is Cth IRR (cth M) over Wolf 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 September 2024.

How much traffic does Cth IRR (cth M) over Wolf River carry?

About 117 vehicles per day (2022 count).

How long is Cth IRR (cth M) over Wolf River?

The structure is 287 ft (87.6 m) long with a longest span of 75 ft (22.9 m) and a deck 34 ft wide.

Who owns Cth IRR (cth M) over Wolf River?

It is owned by the County Highway Agency.