US Bridges

Cth K over Babb Creek

Fair

Sauk County, Wisconsin · 7.7M E JCT Cth G · Structure no. P56095400000000

Built
1983
42 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete
Length
26 ft
1 main span
Daily traffic
3,200
2024 count
Owner
County
County Highway Agency

About this bridge

Cth K over Babb Creek is a concrete slab carrying Cth K over Babb Creek in Sauk County, Wisconsin. It was built in 1983, so it is 42 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 3,200 vehicles a day, projected to reach 3,840 by 2041. The structure is 26 ft (7.9 m) long and 30 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesCth K
CrossesBabb Creek
Location7.7M E JCT Cth G
RouteCounty Highway 0K
Coordinates43.52504, -90.03949
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
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 length26 ft (7.9 m)
Longest span24 ft (7.4 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,200 (2024)
Projected traffic3,840 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 K over Babb Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is Cth K over Babb 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 September 2024.

How much traffic does Cth K over Babb Creek carry?

About 3,200 vehicles per day (2024 count).

How long is Cth K over Babb Creek?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.4 m) and a deck 30 ft wide.

Who owns Cth K over Babb Creek?

It is owned by the County Highway Agency.