US Bridges

Cth U over Onion River

Good

Sheboygan County, Wisconsin · 0.5M E JCT Cth E · Structure no. B59016300000000

Built
1995
30 years old
Condition
Good
inspected August 2023
Type
Slab
Concrete
Length
37 ft
1 main span
Daily traffic
323
2022 count
Owner
County
County Highway Agency

About this bridge

Cth U over Onion River is a concrete slab carrying Cth U over Onion River in Sheboygan County, Wisconsin. It was built in 1995, so it is 30 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 323 vehicles a day, projected to reach 355 by 2042. The structure is 37 ft (11.3 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCth U
CrossesOnion River
Location0.5M E JCT Cth E
RouteCounty Highway 0U
Coordinates43.70381, -87.98104
Functional classRural Minor Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating91.8 US tons
Inventory rating53.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span35 ft (10.7 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic323 (2022)
Projected traffic355 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 U over Onion River built?

It was built in 1995, making it 30 years old in 2025.

What condition is Cth U over Onion 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 August 2023.

How much traffic does Cth U over Onion River carry?

About 323 vehicles per day (2022 count).

How long is Cth U over Onion River?

The structure is 37 ft (11.3 m) long with a longest span of 35 ft (10.7 m) and a deck 32 ft wide.

Who owns Cth U over Onion River?

It is owned by the County Highway Agency.