US Bridges

Cth U over Br Black Creek

Fair

Marathon County, Wisconsin · 1.3M E JCT Cth M · Structure no. B37029900000000

Built
2000
25 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
40 ft
1 main span
Daily traffic
364
2023 count
Owner
County
County Highway Agency

About this bridge

Cth U over Br Black Creek is a concrete slab carrying Cth U over Br Black Creek in Marathon County, Wisconsin. It was built in 2000, so it is 25 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 364 vehicles a day, projected to reach 393 by 2042. The structure is 40 ft (12.3 m) long and 31 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesCth U
CrossesBr Black Creek
Location1.3M E JCT Cth M
RouteCounty Highway 0U
CountyMarathon County
StateWisconsin
Coordinates44.99468, -89.99815
Functional classRural Minor Collector

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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating75.6 US tons
Inventory rating44.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length40 ft (12.3 m)
Longest span38 ft (11.5 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic364 (2023)
Projected traffic393 by 2042
Trucks0%
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

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 U over Br Black Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Cth U over Br Black 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 August 2023.

How much traffic does Cth U over Br Black Creek carry?

About 364 vehicles per day (2023 count).

How long is Cth U over Br Black Creek?

The structure is 40 ft (12.3 m) long with a longest span of 38 ft (11.5 m) and a deck 31 ft wide.

Who owns Cth U over Br Black Creek?

It is owned by the County Highway Agency.