US Bridges

Ush 51 NB over Sth 64

Fair

Lincoln County, Wisconsin · 3.4M N JCT Cth Q · Structure no. B35002800000000

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

About this bridge

Ush 51 NB over Sth 64 is a steel continuous stringer/multi-beam or girder carrying Ush 51 NB over Sth 64 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 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 7,350 vehicles a day, roughly 10% of them trucks, projected to reach 16,500 by 2042. The structure is 194 ft (59 m) long and 44 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

Open in Google Maps
CarriesUsh 51 NB
CrossesSth 64
Location3.4M N JCT Cth Q
RouteU.S. Route 51
CountyLincoln County
StateWisconsin
Coordinates45.17756, -89.64628
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 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 rating61.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length194 ft (59 m)
Longest span98 ft (30 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
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ush 51 NB over Sth 64 built?

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

What condition is Ush 51 NB over Sth 64 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 2023.

How much traffic does Ush 51 NB over Sth 64 carry?

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

How long is Ush 51 NB over Sth 64?

The structure is 194 ft (59 m) long with a longest span of 98 ft (30 m) and a deck 44 ft wide.

Who owns Ush 51 NB over Sth 64?

It is owned by the State Highway Agency.