US Bridges

Cth K over Ridgeway Branch

Fair

Iowa County, Wisconsin · 0.1M S JCT Cth H to W · Structure no. B25003000000000

Built
1983
42 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete Continuous
Length
73 ft
2 main spans
Daily traffic
506
2022 count
Owner
County
County Highway Agency

About this bridge

Cth K over Ridgeway Branch is a concrete continuous slab carrying Cth K over Ridgeway Branch in Iowa 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 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 506 vehicles a day, projected to reach 556 by 2043. The structure is 73 ft (22.3 m) long and 30 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

Open in Google Maps
CarriesCth K
CrossesRidgeway Branch
Location0.1M S JCT Cth H to W
RouteCounty Highway 0K
CountyIowa County
StateWisconsin
Coordinates42.94014, -89.92067
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.7 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length73 ft (22.3 m)
Longest span35 ft (10.8 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic506 (2022)
Projected traffic556 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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 Ridgeway Branch built?

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

What condition is Cth K over Ridgeway Branch 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 July 2024.

How much traffic does Cth K over Ridgeway Branch carry?

About 506 vehicles per day (2022 count).

How long is Cth K over Ridgeway Branch?

The structure is 73 ft (22.3 m) long with a longest span of 35 ft (10.8 m) and a deck 30 ft wide.

Who owns Cth K over Ridgeway Branch?

It is owned by the County Highway Agency.