US Bridges

Cth B over S Fk Main Creek

Fair

Rusk County, Wisconsin · 1.7M S JCT Cth P--21 · Structure no. B54004700000000

Built
1987
38 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete Continuous
Length
62 ft
2 main spans
Daily traffic
540
2024 count
Owner
County
County Highway Agency

About this bridge

Cth B over S Fk Main Creek is a concrete continuous slab carrying Cth B over S Fk Main Creek in Rusk County, Wisconsin. It was built in 1987, so it is 38 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 540 vehicles a day, projected to reach 584 by 2043. The structure is 62 ft (18.9 m) long and 28 ft wide. If it were closed, the detour would be 15.5 mi (25 km).

Location

Open in Google Maps
CarriesCth B
CrossesS Fk Main Creek
Location1.7M S JCT Cth P--21
RouteCounty Highway 0B
CountyRusk County
StateWisconsin
Coordinates45.42864, -90.90342
Functional classRural Local

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 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating41.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic540 (2024)
Projected traffic584 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed15.5 mi (25 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Cth B over S Fk Main Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Cth B over S Fk Main Creek 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 2024.

How much traffic does Cth B over S Fk Main Creek carry?

About 540 vehicles per day (2024 count).

How long is Cth B over S Fk Main Creek?

The structure is 62 ft (18.9 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns Cth B over S Fk Main Creek?

It is owned by the County Highway Agency.