US Bridges

Cth Y over W Twin River

Fair

Manitowoc County, Wisconsin · 0.3M W JCT Cth Q · Structure no. P36012100000000

Built
1967
58 years old
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
96 ft
1 main span
Daily traffic
650
2023 count
Owner
County
County Highway Agency

About this bridge

Cth Y over W Twin River is a prestressed concrete box beam or girders - multiple carrying Cth Y over W Twin River in Manitowoc County, Wisconsin. It was built in 1967, so it is 58 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 650 vehicles a day, projected to reach 502 by 2042. The structure is 96 ft (29.4 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCth Y
CrossesW Twin River
Location0.3M W JCT Cth Q
RouteCounty Highway 0Y
CountyManitowoc County
StateWisconsin
Coordinates44.24036, -87.70573
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating25 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length96 ft (29.4 m)
Longest span92 ft (28 m)
Deck width33 ft (10.2 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2023)
Projected traffic502 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 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 Y over W Twin River built?

It was built in 1967, making it 58 years old in 2025.

What condition is Cth Y over W Twin 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 2023.

How much traffic does Cth Y over W Twin River carry?

About 650 vehicles per day (2023 count).

How long is Cth Y over W Twin River?

The structure is 96 ft (29.4 m) long with a longest span of 92 ft (28 m) and a deck 33 ft wide.

Who owns Cth Y over W Twin River?

It is owned by the County Highway Agency.