US Bridges

Sth 64 over W Br Little Black River

Fair

Taylor County, Wisconsin · 2.8M E JCT Sth 13 · Structure no. B60002000000000

Built
1976
49 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
86 ft
1 main span
Daily traffic
1,900
2023 count
Owner
State
State Highway Agency

About this bridge

Sth 64 over W Br Little Black River is a prestressed concrete stringer/multi-beam or girder carrying Sth 64 over W Br Little Black River in Taylor County, Wisconsin. It was built in 1976, so it is 49 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 1,900 vehicles a day, roughly 10% of them trucks, projected to reach 2,280 by 2039. The structure is 86 ft (26.1 m) long and 44 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

CarriesSth 64
CrossesW Br Little Black River
Location2.8M E JCT Sth 13
RouteState Highway 64
Coordinates45.14255, -90.27527
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 above top of footing
Structural evaluation6: Equal to 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 rating71.7 US tons
Inventory rating41.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length86 ft (26.1 m)
Longest span85 ft (25.9 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2023)
Projected traffic2,280 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 over W Br Little Black River built?

It was built in 1976, making it 49 years old in 2025.

What condition is Sth 64 over W Br Little Black 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 over W Br Little Black River carry?

About 1,900 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Sth 64 over W Br Little Black River?

The structure is 86 ft (26.1 m) long with a longest span of 85 ft (25.9 m) and a deck 44 ft wide.

Who owns Sth 64 over W Br Little Black River?

It is owned by the State Highway Agency.