US Bridges

Cth Mm over N Fk Eau Claire River

Fair

Clark County, Wisconsin · 3.8M W JCT Cth M · Structure no. B10004200000000

Built
1978
47 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete Continuous
Length
97 ft
3 main spans
Daily traffic
210
2022 count
Owner
County
County Highway Agency

About this bridge

Cth Mm over N Fk Eau Claire River is a concrete continuous slab carrying Cth Mm over N Fk Eau Claire River in Clark County, Wisconsin. It was built in 1978, so it is 47 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 210 vehicles a day, projected to reach 203 by 2043. The structure is 97 ft (29.5 m) long and 30 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesCth Mm
CrossesN Fk Eau Claire River
Location3.8M W JCT Cth M
RouteCounty Highway 0MM
CountyClark County
StateWisconsin
Coordinates44.82803, -90.87932
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 protection8 Very GoodNo problems noted.
Last inspectionMay 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length97 ft (29.5 m)
Longest span37 ft (11.3 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2022)
Projected traffic203 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Mm over N Fk Eau Claire River built?

It was built in 1978, making it 47 years old in 2025.

What condition is Cth Mm over N Fk 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 May 2024.

How much traffic does Cth Mm over N Fk Eau Claire River carry?

About 210 vehicles per day (2022 count).

How long is Cth Mm over N Fk Eau Claire River?

The structure is 97 ft (29.5 m) long with a longest span of 37 ft (11.3 m) and a deck 30 ft wide.

Who owns Cth Mm over N Fk Eau Claire River?

It is owned by the County Highway Agency.