US Bridges

Cth Kp over Black Earth Creek

Good

Dane County, Wisconsin · 0.1 MI S JCT Ush 14 · Structure no. B13088300000000

Built
2023
2 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete
Length
49 ft
1 main span
Daily traffic
1,309
2023 count
Owner
County
County Highway Agency

About this bridge

Cth Kp over Black Earth Creek is a concrete slab carrying Cth Kp over Black Earth Creek in Dane County, Wisconsin. It was built in 2023, so it is 2 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,309 vehicles a day, roughly 4% of them trucks, projected to reach 1,400 by 2043. The structure is 49 ft (14.8 m) long and 41 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCth Kp
CrossesBlack Earth Creek
Location0.1 MI S JCT Ush 14
RouteCounty Highway 0KP
Coordinates43.11311, -89.66025
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57.9 US tons
Inventory rating44.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length49 ft (14.8 m)
Longest span46 ft (14 m)
Deck width41 ft (12.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,309 (2023)
Projected traffic1,400 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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 Kp over Black Earth Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is Cth Kp over Black Earth Creek 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 October 2023.

How much traffic does Cth Kp over Black Earth Creek carry?

About 1,309 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Cth Kp over Black Earth Creek?

The structure is 49 ft (14.8 m) long with a longest span of 46 ft (14 m) and a deck 41 ft wide.

Who owns Cth Kp over Black Earth Creek?

It is owned by the County Highway Agency.