US Bridges

Cth B over Little Jump River

Good

Rusk County, Wisconsin · 4.6M S JCT Cth P--19 · Structure no. B54004500000000

Built
1986
39 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete
Length
49 ft
1 main span
Daily traffic
58
2024 count
Owner
County
County Highway Agency

About this bridge

Cth B over Little Jump River is a concrete slab carrying Cth B over Little Jump River in Rusk County, Wisconsin. It was built in 1986, so it is 39 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 58 vehicles a day, projected to reach 596 by 2043. The structure is 49 ft (14.9 m) long and 28 ft wide. If it were closed, the detour would be 15.5 mi (25 km).

CarriesCth B
CrossesLittle Jump River
Location4.6M S JCT Cth P--19
RouteCounty Highway 0B
Coordinates45.38569, -90.90439
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.6 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length49 ft (14.9 m)
Longest span47 ft (14.3 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58 (2024)
Projected traffic596 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 Little Jump River built?

It was built in 1986, making it 39 years old in 2025.

What condition is Cth B over Little Jump 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 June 2024.

How much traffic does Cth B over Little Jump River carry?

About 58 vehicles per day (2024 count).

How long is Cth B over Little Jump River?

The structure is 49 ft (14.9 m) long with a longest span of 47 ft (14.3 m) and a deck 28 ft wide.

Who owns Cth B over Little Jump River?

It is owned by the County Highway Agency.