US Bridges

Cth Ml over Des Plaines River

Fair

Kenosha County, Wisconsin · 0.7M W JCT Cth H · Structure no. P30005100000000

Built
1950
75 years old, rebuilt 1993
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
130 ft
2 main spans
Daily traffic
650
2021 count
Owner
County
County Highway Agency

About this bridge

Cth Ml over Des Plaines River is a prestressed concrete continuous stringer/multi-beam or girder carrying Cth Ml over Des Plaines River in Kenosha County, Wisconsin. It was built in 1950 and reconstructed in 1993, so it is 75 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 650 vehicles a day, roughly 2% of them trucks, projected to reach 780 by 2041. The structure is 130 ft (39.5 m) long and 36 ft wide. If it were closed, the detour would be 10.6 mi (17 km).

CarriesCth Ml
CrossesDes Plaines River
Location0.7M W JCT Cth H
RouteCounty Highway 0ML
Coordinates42.50156, -87.92568
Functional classRural Local

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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.9 US tons
Inventory rating37.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length130 ft (39.5 m)
Longest span62 ft (19 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2021)
Projected traffic780 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed10.6 mi (17 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 Ml over Des Plaines River built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1993.

What condition is Cth Ml over Des Plaines 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 March 2024.

How much traffic does Cth Ml over Des Plaines River carry?

About 650 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Cth Ml over Des Plaines River?

The structure is 130 ft (39.5 m) long with a longest span of 62 ft (19 m) and a deck 36 ft wide.

Who owns Cth Ml over Des Plaines River?

It is owned by the County Highway Agency.