US Bridges

Cth C over Wausaukee River

PoorPosted for load

Marinette County, Wisconsin · 0.7M E JCT Cth a · Structure no. P38091500000000

Built
1920
105 years old, rebuilt 1950
Condition
Poor
inspected October 2024
Type
Slab
Concrete
Length
24 ft
1 main span
Daily traffic
560
2024 count
Owner
County
County Highway Agency

About this bridge

Cth C over Wausaukee River is a concrete slab carrying Cth C over Wausaukee River in Marinette County, Wisconsin. It was built in 1920 and reconstructed in 1950, so it is 105 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 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. Its operating status is: posted for other load-capacity restriction.

It carries about 560 vehicles a day, projected to reach 672 by 2042. The structure is 24 ft (7.3 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesCth C
CrossesWausaukee River
Location0.7M E JCT Cth a
RouteCounty Highway 0C
Coordinates45.42694, -88.08886
Functional classRural Major Collector

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for other load-capacity restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be 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 rating36.4 US tons
Inventory rating21.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span20 ft (6.1 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic560 (2024)
Projected traffic672 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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$168,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth C over Wausaukee River built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1950.

What condition is Cth C over Wausaukee 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 October 2024.

How much traffic does Cth C over Wausaukee River carry?

About 560 vehicles per day (2024 count).

How long is Cth C over Wausaukee River?

The structure is 24 ft (7.3 m) long with a longest span of 20 ft (6.1 m) and a deck 28 ft wide.

Who owns Cth C over Wausaukee River?

It is owned by the County Highway Agency.