US Bridges

Cth F over Knapp Creek

FairPosted for load

Richland County, Wisconsin · 0.4M S JCT Cth S · Structure no. B52003600000000

Built
1963
62 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
130 ft
3 main spans
Daily traffic
120
2022 count
Owner
County
County Highway Agency

About this bridge

Cth F over Knapp Creek is a concrete continuous slab carrying Cth F over Knapp Creek in Richland County, Wisconsin. It was built in 1963, so it is 62 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. Its operating status is: posted for other load-capacity restriction.

It carries about 120 vehicles a day, roughly 11% of them trucks, projected to reach 144 by 2042. The structure is 130 ft (39.6 m) long and 29 ft wide. If it were closed, the detour would be 17.4 mi (28 km).

Location

Open in Google Maps
CarriesCth F
CrossesKnapp Creek
Location0.4M S JCT Cth S
RouteCounty Highway 0F
CountyRichland County
StateWisconsin
Coordinates43.25389, -90.62944
Functional classRural Major 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.2 US tons
Inventory rating19.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length130 ft (39.6 m)
Longest span52 ft (15.8 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2022)
Projected traffic144 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed17.4 mi (28 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 F over Knapp Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is Cth F 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 April 2024.

How much traffic does Cth F over Knapp Creek carry?

About 120 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Cth F over Knapp Creek?

The structure is 130 ft (39.6 m) long with a longest span of 52 ft (15.8 m) and a deck 29 ft wide.

Who owns Cth F over Knapp Creek?

It is owned by the County Highway Agency.