US Bridges

Cth B over N Br Manitowoc River

Fair

Calumet County, Wisconsin · 2.3M W JCT Sth 57 · Structure no. B08000800000000

Built
1977
48 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
57 ft
1 main span
Daily traffic
1,300
2022 count
Owner
County
County Highway Agency

About this bridge

Cth B over N Br Manitowoc River is a prestressed concrete stringer/multi-beam or girder carrying Cth B over N Br Manitowoc River in Calumet County, Wisconsin. It was built in 1977, so it is 48 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 1,300 vehicles a day, projected to reach 788 by 2043. The structure is 57 ft (17.3 m) long and 36 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesCth B
CrossesN Br Manitowoc River
Location2.3M W JCT Sth 57
RouteCounty Highway 0B
CountyCalumet County
StateWisconsin
Coordinates44.16917, -88.20806
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating71.7 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length57 ft (17.3 m)
Longest span55 ft (16.8 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2022)
Projected traffic788 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 B over N Br Manitowoc River built?

It was built in 1977, making it 48 years old in 2025.

What condition is Cth B over N Br Manitowoc 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 May 2024.

How much traffic does Cth B over N Br Manitowoc River carry?

About 1,300 vehicles per day (2022 count).

How long is Cth B over N Br Manitowoc River?

The structure is 57 ft (17.3 m) long with a longest span of 55 ft (16.8 m) and a deck 36 ft wide.

Who owns Cth B over N Br Manitowoc River?

It is owned by the County Highway Agency.