US Bridges

Cth N over Plover River

Good

Marathon County, Wisconsin · 0.1M E JCT Cth Y · Structure no. B37040400000000

Built
2008
17 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete Continuous
Length
51 ft
1 main span
Daily traffic
1,306
2023 count
Owner
County
County Highway Agency

About this bridge

Cth N over Plover River is a concrete continuous slab carrying Cth N over Plover River in Marathon County, Wisconsin. It was built in 2008, so it is 17 years old, younger than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,306 vehicles a day, roughly 10% of them trucks, projected to reach 1,353 by 2042. The structure is 51 ft (15.4 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCth N
CrossesPlover River
Location0.1M E JCT Cth Y
RouteCounty Highway 0N
Coordinates44.94308, -89.32481
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.2 US tons
Inventory rating51.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length51 ft (15.4 m)
Longest span48 ft (14.6 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,306 (2023)
Projected traffic1,353 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 N over Plover River built?

It was built in 2008, making it 17 years old in 2025.

What condition is Cth N over Plover River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Cth N over Plover River carry?

About 1,306 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Cth N over Plover River?

The structure is 51 ft (15.4 m) long with a longest span of 48 ft (14.6 m) and a deck 36 ft wide.

Who owns Cth N over Plover River?

It is owned by the County Highway Agency.