US Bridges

Cth K over Eau Claire River

Fair

Eau Claire County, Wisconsin · 0.7MI N of Cth Ss · Structure no. B18000200000000

Built
1951
74 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
245 ft
3 main spans
Daily traffic
2,056
2024 count
Owner
County
County Highway Agency

About this bridge

Cth K over Eau Claire River is a steel continuous stringer/multi-beam or girder carrying Cth K over Eau Claire River in Eau Claire County, Wisconsin. It was built in 1951, so it is 74 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 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 2,056 vehicles a day, projected to reach 2,255 by 2043. The structure is 245 ft (74.7 m) long and 27 ft wide. If it were closed, the detour would be 13.7 mi (22 km).

Location

Open in Google Maps
CarriesCth K
CrossesEau Claire River
Location0.7MI N of Cth Ss
RouteCounty Highway 0K
CountyEau Claire County
StateWisconsin
Coordinates44.80975, -91.28181
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.8 US tons
Inventory rating21.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length245 ft (74.7 m)
Longest span92 ft (28 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,056 (2024)
Projected traffic2,255 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13.7 mi (22 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth K over Eau Claire River built?

It was built in 1951, making it 74 years old in 2025.

What condition is Cth K over Eau Claire River 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 October 2024.

How much traffic does Cth K over Eau Claire River carry?

About 2,056 vehicles per day (2024 count).

How long is Cth K over Eau Claire River?

The structure is 245 ft (74.7 m) long with a longest span of 92 ft (28 m) and a deck 27 ft wide.

Who owns Cth K over Eau Claire River?

It is owned by the County Highway Agency.