US Bridges

Ush 51 NB over Prairie River

Good

Lincoln County, Wisconsin · 2.5M N JCT Sth 64 to E · Structure no. B35003100000000

Built
1975
50 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
185 ft
2 main spans
Daily traffic
7,350
2022 count
Owner
State
State Highway Agency

About this bridge

Ush 51 NB over Prairie River is a prestressed concrete continuous stringer/multi-beam or girder carrying Ush 51 NB over Prairie River in Lincoln County, Wisconsin. It was built in 1975, so it is 50 years old, older 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 7,350 vehicles a day, roughly 10% of them trucks, projected to reach 16,500 by 2042. The structure is 185 ft (56.3 m) long and 44 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

CarriesUsh 51 NB
CrossesPrairie River
Location2.5M N JCT Sth 64 to E
RouteU.S. Route 51
Coordinates45.20512, -89.65961
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.2 US tons
Inventory rating46.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length185 ft (56.3 m)
Longest span92 ft (28 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,350 (2022)
Projected traffic16,500 by 2042
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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 NB over Prairie River built?

It was built in 1975, making it 50 years old in 2025.

What condition is Ush 51 NB over Prairie 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 2023.

How much traffic does Ush 51 NB over Prairie River carry?

About 7,350 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Ush 51 NB over Prairie River?

The structure is 185 ft (56.3 m) long with a longest span of 92 ft (28 m) and a deck 44 ft wide.

Who owns Ush 51 NB over Prairie River?

It is owned by the State Highway Agency.