US Bridges

Cth Mm over Wolf River

PoorPosted for load

Eau Claire County, Wisconsin · 0.4M W Cth H · Structure no. B18000400000000

Built
1953
72 years old
Condition
Poor
inspected September 2024
Type
Slab
Concrete Continuous
Length
105 ft
3 main spans
Daily traffic
272
2024 count
Owner
County
County Highway Agency

About this bridge

Cth Mm over Wolf River is a concrete continuous slab carrying Cth Mm over Wolf River in Eau Claire County, Wisconsin. It was built in 1953, so it is 72 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for other load-capacity restriction.

It carries about 272 vehicles a day, projected to reach 507 by 2043. The structure is 105 ft (31.9 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCth Mm
CrossesWolf River
Location0.4M W Cth H
RouteCounty Highway 0MM
Coordinates44.82861, -90.94856
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be 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 rating34.2 US tons
Inventory rating19.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length105 ft (31.9 m)
Longest span40 ft (12.2 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic272 (2024)
Projected traffic507 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$516,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth Mm over Wolf River built?

It was built in 1953, making it 72 years old in 2025.

What condition is Cth Mm over Wolf River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Cth Mm over Wolf River carry?

About 272 vehicles per day (2024 count).

How long is Cth Mm over Wolf River?

The structure is 105 ft (31.9 m) long with a longest span of 40 ft (12.2 m) and a deck 27 ft wide.

Who owns Cth Mm over Wolf River?

It is owned by the County Highway Agency.