US Bridges

Cth U over Knapp Creek

Fair

Crawford County, Wisconsin · 0.3M N JCT Cth Kk · Structure no. B12003300000000

Built
1979
46 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete
Length
58 ft
2 main spans
Daily traffic
43
2022 count
Owner
County
County Highway Agency

About this bridge

Cth U over Knapp Creek is a concrete slab carrying Cth U over Knapp Creek in Crawford County, Wisconsin. It was built in 1979, so it is 46 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 5 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 43 vehicles a day, projected to reach 47 by 2043. The structure is 58 ft (17.6 m) long and 28 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesCth U
CrossesKnapp Creek
Location0.3M N JCT Cth Kk
RouteCounty Highway 0U
CountyCrawford County
StateWisconsin
Coordinates43.34433, -90.67147
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.9 US tons
Inventory rating42.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length58 ft (17.6 m)
Longest span28 ft (8.5 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43 (2022)
Projected traffic47 by 2043
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 Knapp Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Cth U over Knapp 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 U over Knapp Creek carry?

About 43 vehicles per day (2022 count).

How long is Cth U over Knapp Creek?

The structure is 58 ft (17.6 m) long with a longest span of 28 ft (8.5 m) and a deck 28 ft wide.

Who owns Cth U over Knapp Creek?

It is owned by the County Highway Agency.