US Bridges

Cth M over Little River

Fair

Oconto County, Wisconsin · 0.5M W JCT Ush 141 · Structure no. P42006000000000

Built
1923
102 years old, rebuilt 1983
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
29 ft
1 main span
Daily traffic
1,100
2022 count
Owner
County
County Highway Agency

About this bridge

Cth M over Little River is a concrete stringer/multi-beam or girder carrying Cth M over Little River in Oconto County, Wisconsin. It was built in 1923 and reconstructed in 1983, so it is 102 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 1,100 vehicles a day, projected to reach 1,320 by 2042. The structure is 29 ft (8.8 m) long and 32 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesCth M
CrossesLittle River
Location0.5M W JCT Ush 141
RouteCounty Highway 0M
CountyOconto County
StateWisconsin
Coordinates45.00878, -88.055
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length29 ft (8.8 m)
Longest span27 ft (8.2 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2022)
Projected traffic1,320 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 M over Little River built?

It was built in 1923, making it 102 years old in 2025. It was reconstructed in 1983.

What condition is Cth M over Little 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 M over Little River carry?

About 1,100 vehicles per day (2022 count).

How long is Cth M over Little River?

The structure is 29 ft (8.8 m) long with a longest span of 27 ft (8.2 m) and a deck 32 ft wide.

Who owns Cth M over Little River?

It is owned by the County Highway Agency.