US Bridges

Cth G over Mud Branch

Fair

Lafayette County, Wisconsin · 3.4M W JCT Cth N · Structure no. P33092600000000

Built
1969
56 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
490
2022 count
Owner
County
County Highway Agency

About this bridge

Cth G over Mud Branch is a concrete slab carrying Cth G over Mud Branch in Lafayette County, Wisconsin. It was built in 1969, so it is 56 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 490 vehicles a day, projected to reach 917 by 2043. The structure is 30 ft (9.2 m) long and 32 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

CarriesCth G
CrossesMud Branch
Location3.4M W JCT Cth N
RouteCounty Highway 0G
Coordinates42.72618, -89.93278
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length30 ft (9.2 m)
Longest span29 ft (8.7 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic490 (2022)
Projected traffic917 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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 G over Mud Branch built?

It was built in 1969, making it 56 years old in 2025.

What condition is Cth G over Mud Branch 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 August 2024.

How much traffic does Cth G over Mud Branch carry?

About 490 vehicles per day (2022 count).

How long is Cth G over Mud Branch?

The structure is 30 ft (9.2 m) long with a longest span of 29 ft (8.7 m) and a deck 32 ft wide.

Who owns Cth G over Mud Branch?

It is owned by the County Highway Agency.