US Bridges

Cth U over Ush 51 NB

Fair

Marathon County, Wisconsin · 0.5 MI W JCT B51 1.1 MI W · Structure no. B37043600000000

Built
2013
12 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
258 ft
2 main spans
Daily traffic
3,100
2022 count
Owner
State
State Highway Agency

About this bridge

Cth U over Ush 51 NB is a prestressed concrete continuous stringer/multi-beam or girder carrying Cth U over Ush 51 NB in Marathon County, Wisconsin. It was built in 2013, so it is 12 years old, younger 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 3,100 vehicles a day, roughly 3% of them trucks, projected to reach 10,600 by 2043. The structure is 258 ft (78.6 m) long and 99 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCth U
CrossesUsh 51 NB
Location0.5 MI W JCT B51 1.1 MI W
RouteCounty Highway 0U
CountyMarathon County
StateWisconsin
Coordinates44.98611, -89.65693
Functional classRural Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.7 US tons
Inventory rating42.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length258 ft (78.6 m)
Longest span131 ft (39.9 m)
Deck width99 ft (30.2 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,100 (2022)
Projected traffic10,600 by 2043
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 Cth U over Ush 51 NB built?

It was built in 2013, making it 12 years old in 2025.

What condition is Cth U over Ush 51 NB 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 June 2024.

How much traffic does Cth U over Ush 51 NB carry?

About 3,100 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Cth U over Ush 51 NB?

The structure is 258 ft (78.6 m) long with a longest span of 131 ft (39.9 m) and a deck 99 ft wide.

Who owns Cth U over Ush 51 NB?

It is owned by the State Highway Agency.