US Bridges

Ush 51 Sb-Sth 29 E over Big Rib River

Good

Marathon County, Wisconsin · 1.7M S JCT Sth 29 to W · Structure no. B37034500000000

Built
2006
19 years old
Condition
Good
inspected June 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
571 ft
5 main spans
Daily traffic
30,550
2022 count
Owner
State
State Highway Agency

About this bridge

Ush 51 Sb-Sth 29 E over Big Rib River is a prestressed concrete continuous stringer/multi-beam or girder carrying Ush 51 Sb-Sth 29 E over Big Rib River in Marathon County, Wisconsin. It was built in 2006, so it is 19 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 30,550 vehicles a day, roughly 8% of them trucks, projected to reach 36,660 by 2042. The structure is 571 ft (174.1 m) long and 80 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesUsh 51 Sb-Sth 29 E
CrossesBig Rib River
Location1.7M S JCT Sth 29 to W
RouteU.S. Route 51
Coordinates44.94595, -89.66674
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.7 US tons
Inventory rating37.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length571 ft (174.1 m)
Longest span113 ft (34.5 m)
Deck width80 ft (24.4 m)
Roadway width77 ft (23.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,550 (2022)
Projected traffic36,660 by 2042
Trucks8%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ush 51 Sb-Sth 29 E over Big Rib River built?

It was built in 2006, making it 19 years old in 2025.

What condition is Ush 51 Sb-Sth 29 E over Big Rib 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 June 2022.

How much traffic does Ush 51 Sb-Sth 29 E over Big Rib River carry?

About 30,550 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Ush 51 Sb-Sth 29 E over Big Rib River?

The structure is 571 ft (174.1 m) long with a longest span of 113 ft (34.5 m) and a deck 80 ft wide.

Who owns Ush 51 Sb-Sth 29 E over Big Rib River?

It is owned by the State Highway Agency.