US Bridges

Cth C over Plover River

PoorPosted for load

Marathon County, Wisconsin · 0.3M W JCT Cth Y · Structure no. B37001600000000

Built
1954
71 years old
Condition
Poor
inspected September 2024
Type
Slab
Concrete Continuous
Length
75 ft
3 main spans
Daily traffic
811
2024 count
Owner
County
County Highway Agency

About this bridge

Cth C over Plover River is a concrete continuous slab carrying Cth C over Plover River in Marathon County, Wisconsin. It was built in 1954, so it is 71 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 load restriction.

It carries about 811 vehicles a day, projected to reach 867 by 2043. The structure is 75 ft (22.9 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCth C
CrossesPlover River
Location0.3M W JCT Cth Y
RouteCounty Highway 0C
CountyMarathon County
StateWisconsin
Coordinates44.71312, -89.42769
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.4 US tons
Inventory rating25 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length75 ft (22.9 m)
Longest span28 ft (8.4 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic811 (2024)
Projected traffic867 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$437,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth C over Plover River built?

It was built in 1954, making it 71 years old in 2025.

What condition is Cth C over Plover 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 September 2024.

How much traffic does Cth C over Plover River carry?

About 811 vehicles per day (2024 count).

How long is Cth C over Plover River?

The structure is 75 ft (22.9 m) long with a longest span of 28 ft (8.4 m) and a deck 27 ft wide.

Who owns Cth C over Plover River?

It is owned by the County Highway Agency.