US Bridges

Cth C over Apple River

FairPosted for load

St. Croix County, Wisconsin · 0.1M E JCT Cth Cc · Structure no. B55002500000000

Built
1957
68 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
117 ft
3 main spans
Daily traffic
1,750
2022 count
Owner
County
County Highway Agency

About this bridge

Cth C over Apple River is a concrete continuous slab carrying Cth C over Apple River in St. Croix County, Wisconsin. It was built in 1957, so it is 68 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. Its operating status is: posted for other load-capacity restriction.

It carries about 1,750 vehicles a day, projected to reach 3,562 by 2042. The structure is 117 ft (35.7 m) long and 33 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

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CarriesCth C
CrossesApple River
Location0.1M E JCT Cth Cc
RouteCounty Highway 0C
CountySt. Croix County
StateWisconsin
Coordinates45.16301, -92.59292
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating26.5 US tons
Inventory rating16.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length117 ft (35.7 m)
Longest span45 ft (13.7 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,750 (2022)
Projected traffic3,562 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 C over Apple River built?

It was built in 1957, making it 68 years old in 2025.

What condition is Cth C over Apple 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 C over Apple River carry?

About 1,750 vehicles per day (2022 count).

How long is Cth C over Apple River?

The structure is 117 ft (35.7 m) long with a longest span of 45 ft (13.7 m) and a deck 33 ft wide.

Who owns Cth C over Apple River?

It is owned by the County Highway Agency.