US Bridges

Cth E over Willow River

Fair

St. Croix County, Wisconsin · 0.2M E JCT Cth a · Structure no. B55005200000000

Built
1959
66 years old, rebuilt 2000
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
166 ft
3 main spans
Daily traffic
1,015
2022 count
Owner
County
County Highway Agency

About this bridge

Cth E over Willow River is a steel continuous stringer/multi-beam or girder carrying Cth E over Willow River in St. Croix County, Wisconsin. It was built in 1959 and reconstructed in 2000, so it is 66 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 1,015 vehicles a day, projected to reach 1,116 by 2042. The structure is 166 ft (50.5 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCth E
CrossesWillow River
Location0.2M E JCT Cth a
RouteCounty Highway 0E
CountySt. Croix County
StateWisconsin
Coordinates45.036, -92.63928
Functional classRural Major 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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating45.2 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length166 ft (50.5 m)
Longest span62 ft (18.9 m)
Deck width31 ft (9.3 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,015 (2022)
Projected traffic1,116 by 2042
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth E over Willow River built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2000.

What condition is Cth E 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 November 2023.

How much traffic does Cth E over Willow River carry?

About 1,015 vehicles per day (2022 count).

How long is Cth E over Willow River?

The structure is 166 ft (50.5 m) long with a longest span of 62 ft (18.9 m) and a deck 31 ft wide.

Who owns Cth E over Willow River?

It is owned by the County Highway Agency.