US Bridges

Cth C over Oconto River

Fair

Shawano County, Wisconsin · 0.1M S JCT Sth 22 · Structure no. B58000300000000

Built
1949
76 years old, rebuilt 2003
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
185 ft
3 main spans
Daily traffic
753
2022 count
Owner
County
County Highway Agency

About this bridge

Cth C over Oconto River is a steel continuous stringer/multi-beam or girder carrying Cth C over Oconto River in Shawano County, Wisconsin. It was built in 1949 and reconstructed in 2003, so it is 76 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 753 vehicles a day, projected to reach 828 by 2042. The structure is 185 ft (56.4 m) long and 28 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

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CarriesCth C
CrossesOconto River
Location0.1M S JCT Sth 22
RouteCounty Highway 0C
CountyShawano County
StateWisconsin
Coordinates44.8425, -88.36
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 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
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 rating45.2 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length185 ft (56.4 m)
Longest span70 ft (21.3 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic753 (2022)
Projected traffic828 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 C over Oconto River built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 2003.

What condition is Cth C over Oconto 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 August 2023.

How much traffic does Cth C over Oconto River carry?

About 753 vehicles per day (2022 count).

How long is Cth C over Oconto River?

The structure is 185 ft (56.4 m) long with a longest span of 70 ft (21.3 m) and a deck 28 ft wide.

Who owns Cth C over Oconto River?

It is owned by the County Highway Agency.