US Bridges

Cth Ww over Trappe River

Fair

Marathon County, Wisconsin · 4.2M N JCT Cth W · Structure no. B37009000000000

Built
1961
64 years old, rebuilt 2001
Condition
Fair
inspected September 2023
Type
Slab
Concrete
Length
161 ft
3 main spans
Daily traffic
860
2023 count
Owner
County
County Highway Agency

About this bridge

Cth Ww over Trappe River is a concrete slab carrying Cth Ww over Trappe River in Marathon County, Wisconsin. It was built in 1961 and reconstructed in 2001, so it is 64 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 6 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 860 vehicles a day, projected to reach 913 by 2042. The structure is 161 ft (49 m) long and 36 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesCth Ww
CrossesTrappe River
Location4.2M N JCT Cth W
RouteCounty Highway 0WW
CountyMarathon County
StateWisconsin
Coordinates45.06907, -89.56869
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation6: Equal to 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 rating70.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length161 ft (49 m)
Longest span59 ft (18.1 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic860 (2023)
Projected traffic913 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 Ww over Trappe River built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2001.

What condition is Cth Ww over Trappe 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 September 2023.

How much traffic does Cth Ww over Trappe River carry?

About 860 vehicles per day (2023 count).

How long is Cth Ww over Trappe River?

The structure is 161 ft (49 m) long with a longest span of 59 ft (18.1 m) and a deck 36 ft wide.

Who owns Cth Ww over Trappe River?

It is owned by the County Highway Agency.