US Bridges

Cth M over N Br Milwaukee River

Fair

Washington County, Wisconsin · 0.9M N JCT Cth a · Structure no. B66009600000000

Built
1986
39 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
82 ft
3 main spans
Daily traffic
1,600
2022 count
Owner
County
County Highway Agency

About this bridge

Cth M over N Br Milwaukee River is a concrete continuous slab carrying Cth M over N Br Milwaukee River in Washington County, Wisconsin. It was built in 1986, so it is 39 years old, younger 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 1,600 vehicles a day, projected to reach 1,392 by 2043. The structure is 82 ft (24.9 m) long and 42 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCth M
CrossesN Br Milwaukee River
Location0.9M N JCT Cth a
RouteCounty Highway 0M
CountyWashington County
StateWisconsin
Coordinates43.48279, -88.06081
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.9 US tons
Inventory rating42.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length82 ft (24.9 m)
Longest span32 ft (9.8 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2022)
Projected traffic1,392 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 M over N Br Milwaukee River built?

It was built in 1986, making it 39 years old in 2025.

What condition is Cth M over N Br Milwaukee 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 November 2024.

How much traffic does Cth M over N Br Milwaukee River carry?

About 1,600 vehicles per day (2022 count).

How long is Cth M over N Br Milwaukee River?

The structure is 82 ft (24.9 m) long with a longest span of 32 ft (9.8 m) and a deck 42 ft wide.

Who owns Cth M over N Br Milwaukee River?

It is owned by the County Highway Agency.