US Bridges

Cth M over Fox River

Fair

Waukesha County, Wisconsin · 0.1 M E JCT Cth Y · Structure no. B67020600000000

Built
1984
41 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete
Length
34 ft
1 main span
Daily traffic
7,700
2022 count
Owner
County
County Highway Agency

About this bridge

Cth M over Fox River is a concrete slab carrying Cth M over Fox River in Waukesha County, Wisconsin. It was built in 1984, so it is 41 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 7,700 vehicles a day, projected to reach 9,240 by 2042. The structure is 34 ft (10.3 m) long and 46 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCth M
CrossesFox River
Location0.1 M E JCT Cth Y
RouteCounty Highway 0M
CountyWaukesha County
StateWisconsin
Coordinates43.06134, -88.16398
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length34 ft (10.3 m)
Longest span33 ft (10.1 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,700 (2022)
Projected traffic9,240 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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 M over Fox River built?

It was built in 1984, making it 41 years old in 2025.

What condition is Cth M over Fox 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 December 2024.

How much traffic does Cth M over Fox River carry?

About 7,700 vehicles per day (2022 count).

How long is Cth M over Fox River?

The structure is 34 ft (10.3 m) long with a longest span of 33 ft (10.1 m) and a deck 46 ft wide.

Who owns Cth M over Fox River?

It is owned by the County Highway Agency.