US Bridges

Cth K over Mud Creek

PoorPosted for load

Manitowoc County, Wisconsin · 0.4M W JCT Cth W · Structure no. P36092500000000

Built
1970
55 years old
Condition
Poor
inspected October 2024
Type
Channel Beam
Prestressed Concrete
Length
27 ft
1 main span
Daily traffic
780
2023 count
Owner
County
County Highway Agency

About this bridge

Cth K over Mud Creek is a prestressed concrete channel beam carrying Cth K over Mud Creek in Manitowoc County, Wisconsin. It was built in 1970, so it is 55 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 780 vehicles a day, projected to reach 924 by 2041. The structure is 27 ft (8.2 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCth K
CrossesMud Creek
Location0.4M W JCT Cth W
RouteCounty Highway 0K
Coordinates44.2257, -87.97836
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be 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 rating50.4 US tons
Inventory rating28.5 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length27 ft (8.2 m)
Longest span24 ft (7.3 m)
Deck width39 ft (11.9 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic780 (2023)
Projected traffic924 by 2041
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$203,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth K over Mud Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Cth K over Mud Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Cth K over Mud Creek carry?

About 780 vehicles per day (2023 count).

How long is Cth K over Mud Creek?

The structure is 27 ft (8.2 m) long with a longest span of 24 ft (7.3 m) and a deck 39 ft wide.

Who owns Cth K over Mud Creek?

It is owned by the County Highway Agency.