US Bridges

Ush 51 over Cth N

Good

Oneida County, Wisconsin · 1.9M N JCT Ush 8 to W · Structure no. B43002000000000

Built
1992
33 years old
Condition
Good
inspected July 2023
Type
Slab
Concrete Continuous
Length
96 ft
3 main spans
Daily traffic
7,100
2022 count
Owner
State
State Highway Agency

About this bridge

Ush 51 over Cth N is a concrete continuous slab carrying Ush 51 over Cth N in Oneida County, Wisconsin. It was built in 1992, so it is 33 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 7,100 vehicles a day, roughly 9% of them trucks, projected to reach 6,980 by 2042. The structure is 96 ft (29.2 m) long and 47 ft wide. If it were closed, the detour would be 44.7 mi (72 km).

CarriesUsh 51
CrossesCth N
Location1.9M N JCT Ush 8 to W
RouteU.S. Route 51
Coordinates45.56603, -89.67487
Functional classRural Major 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.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.4 US tons
Inventory rating46.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length96 ft (29.2 m)
Longest span42 ft (12.8 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,100 (2022)
Projected traffic6,980 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed44.7 mi (72 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ush 51 over Cth N built?

It was built in 1992, making it 33 years old in 2025.

What condition is Ush 51 over Cth N 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 July 2023.

How much traffic does Ush 51 over Cth N carry?

About 7,100 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Ush 51 over Cth N?

The structure is 96 ft (29.2 m) long with a longest span of 42 ft (12.8 m) and a deck 47 ft wide.

Who owns Ush 51 over Cth N?

It is owned by the State Highway Agency.