US Bridges

Ush 51NB over Lrd HWY 52 Parkway

Fair

Marathon County, Wisconsin · 2.1M N Cth Nn · Structure no. B37035200000000

Built
2008
17 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
270 ft
2 main spans
Daily traffic
19,300
2022 count
Owner
State
State Highway Agency

About this bridge

Ush 51NB over Lrd HWY 52 Parkway is a prestressed concrete continuous stringer/multi-beam or girder carrying Ush 51NB over Lrd HWY 52 Parkway in Marathon County, Wisconsin. It was built in 2008, so it is 17 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 19,300 vehicles a day, roughly 8% of them trucks, projected to reach 23,160 by 2043. The structure is 270 ft (82.2 m) long and 53 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUsh 51NB
CrossesLrd HWY 52 Parkway
Location2.1M N Cth Nn
RouteU.S. Route 51
Coordinates44.96053, -89.66322
Functional classUrban Other Principal 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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.7 US tons
Inventory rating39.2 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length270 ft (82.2 m)
Longest span140 ft (42.8 m)
Deck width53 ft (16.1 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,300 (2022)
Projected traffic23,160 by 2043
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ush 51NB over Lrd HWY 52 Parkway built?

It was built in 2008, making it 17 years old in 2025.

What condition is Ush 51NB over Lrd HWY 52 Parkway 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 Ush 51NB over Lrd HWY 52 Parkway carry?

About 19,300 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Ush 51NB over Lrd HWY 52 Parkway?

The structure is 270 ft (82.2 m) long with a longest span of 140 ft (42.8 m) and a deck 53 ft wide.

Who owns Ush 51NB over Lrd HWY 52 Parkway?

It is owned by the State Highway Agency.