US Bridges

Cth T over Willow River

Fair

St. Croix County, Wisconsin · 2.8M N JCT Cth G · Structure no. B55006800000000

Built
1976
49 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
131 ft
3 main spans
Daily traffic
2,000
2022 count
Owner
County
County Highway Agency

About this bridge

Cth T over Willow River is a concrete continuous slab carrying Cth T over Willow River in St. Croix County, Wisconsin. It was built in 1976, so it is 49 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 2,000 vehicles a day, projected to reach 2,088 by 2042. The structure is 131 ft (39.8 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCth T
CrossesWillow River
Location2.8M N JCT Cth G
RouteCounty Highway 0T
CountySt. Croix County
StateWisconsin
Coordinates45.11954, -92.43648
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating64.8 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length131 ft (39.8 m)
Longest span52 ft (15.8 m)
Deck width36 ft (10.9 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2022)
Projected traffic2,088 by 2042
Trucks0%
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 T over Willow River built?

It was built in 1976, making it 49 years old in 2025.

What condition is Cth T over Willow 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 October 2023.

How much traffic does Cth T over Willow River carry?

About 2,000 vehicles per day (2022 count).

How long is Cth T over Willow River?

The structure is 131 ft (39.8 m) long with a longest span of 52 ft (15.8 m) and a deck 36 ft wide.

Who owns Cth T over Willow River?

It is owned by the County Highway Agency.