US Bridges

Sth 64 over Big Rib River

Good

Taylor County, Wisconsin · 2.4M E JCT Sth 97 · Structure no. B60012500000000

Built
2012
13 years old
Condition
Good
inspected July 2021
Type
Slab
Concrete Continuous
Length
163 ft
3 main spans
Daily traffic
1,600
2023 count
Owner
State
State Highway Agency

About this bridge

Sth 64 over Big Rib River is a concrete continuous slab carrying Sth 64 over Big Rib River in Taylor County, Wisconsin. It was built in 2012, so it is 13 years old, younger 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 1,600 vehicles a day, roughly 12% of them trucks, projected to reach 1,920 by 2039. The structure is 163 ft (49.6 m) long and 38 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesSth 64
CrossesBig Rib River
Location2.4M E JCT Sth 97
RouteState Highway 64
Coordinates45.14949, -90.0596
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 rating46.7 US tons
Inventory rating38.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length163 ft (49.6 m)
Longest span64 ft (19.5 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2023)
Projected traffic1,920 by 2039
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 Big Rib River built?

It was built in 2012, making it 13 years old in 2025.

What condition is Sth 64 over Big Rib 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 July 2021.

How much traffic does Sth 64 over Big Rib River carry?

About 1,600 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Sth 64 over Big Rib River?

The structure is 163 ft (49.6 m) long with a longest span of 64 ft (19.5 m) and a deck 38 ft wide.

Who owns Sth 64 over Big Rib River?

It is owned by the State Highway Agency.