US Bridges

Cth Z over Eau Claire River

Good

Marathon County, Wisconsin · 0.7M W JCT Cth Y · Structure no. B37045000000000

Built
2019
6 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
193 ft
2 main spans
Daily traffic
1,270
2023 count
Owner
County
County Highway Agency

About this bridge

Cth Z over Eau Claire River is a prestressed concrete stringer/multi-beam or girder carrying Cth Z over Eau Claire River in Marathon County, Wisconsin. It was built in 2019, so it is 6 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 1,270 vehicles a day, roughly 6% of them trucks, projected to reach 1,400 by 2039. The structure is 193 ft (58.7 m) long and 32 ft wide. If it were closed, the detour would be 15.5 mi (25 km).

Location

Open in Google Maps
CarriesCth Z
CrossesEau Claire River
Location0.7M W JCT Cth Y
RouteCounty Highway 0Z
CountyMarathon County
StateWisconsin
Coordinates44.98651, -89.36198
Functional classRural Principal Arterial - Other

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 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 rating70.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length193 ft (58.7 m)
Longest span95 ft (29 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,270 (2023)
Projected traffic1,400 by 2039
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed15.5 mi (25 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 Z over Eau Claire River built?

It was built in 2019, making it 6 years old in 2025.

What condition is Cth Z over Eau Claire 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 Z over Eau Claire River carry?

About 1,270 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Cth Z over Eau Claire River?

The structure is 193 ft (58.7 m) long with a longest span of 95 ft (29 m) and a deck 32 ft wide.

Who owns Cth Z over Eau Claire River?

It is owned by the County Highway Agency.