US Bridges

Sth 64-STH 73 over Yellow River

Fair

Taylor County, Wisconsin · 0.3M E JCT Sth 73 to N · Structure no. B60006800000000

Built
1997
28 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
140 ft
2 main spans
Daily traffic
1,500
2023 count
Owner
State
State Highway Agency

About this bridge

Sth 64-STH 73 over Yellow River is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 64-STH 73 over Yellow River in Taylor County, Wisconsin. It was built in 1997, so it is 28 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 1,500 vehicles a day, roughly 11% of them trucks, projected to reach 1,920 by 2039. The structure is 140 ft (42.6 m) long and 38 ft wide. If it were closed, the detour would be 55.9 mi (90 km).

Location

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CarriesSth 64-STH 73
CrossesYellow River
Location0.3M E JCT Sth 73 to N
RouteState Highway 64
CountyTaylor County
StateWisconsin
Coordinates45.16269, -90.7817
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length140 ft (42.6 m)
Longest span68 ft (20.7 m)
Deck width38 ft (11.5 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2023)
Projected traffic1,920 by 2039
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed55.9 mi (90 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sth 64-STH 73 over Yellow River built?

It was built in 1997, making it 28 years old in 2025.

What condition is Sth 64-STH 73 over Yellow River 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 July 2023.

How much traffic does Sth 64-STH 73 over Yellow River carry?

About 1,500 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Sth 64-STH 73 over Yellow River?

The structure is 140 ft (42.6 m) long with a longest span of 68 ft (20.7 m) and a deck 38 ft wide.

Who owns Sth 64-STH 73 over Yellow River?

It is owned by the State Highway Agency.