US Bridges

Cth N over Soda Creek

Fair

Marathon County, Wisconsin · 0.6M W JCT Cth S · Structure no. B37022200000000

Built
1986
39 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete
Length
42 ft
1 main span
Daily traffic
1,600
2023 count
Owner
County
County Highway Agency

About this bridge

Cth N over Soda Creek is a concrete slab carrying Cth N over Soda Creek in Marathon County, Wisconsin. It was built in 1986, so it is 39 years old, younger 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 1,600 vehicles a day, projected to reach 2,480 by 2042. The structure is 42 ft (12.8 m) long and 36 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesCth N
CrossesSoda Creek
Location0.6M W JCT Cth S
RouteCounty Highway 0N
CountyMarathon County
StateWisconsin
Coordinates44.90184, -89.91836
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
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating68.5 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span40 ft (12.2 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2023)
Projected traffic2,480 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 N over Soda Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Cth N over Soda Creek 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 September 2023.

How much traffic does Cth N over Soda Creek carry?

About 1,600 vehicles per day (2023 count).

How long is Cth N over Soda Creek?

The structure is 42 ft (12.8 m) long with a longest span of 40 ft (12.2 m) and a deck 36 ft wide.

Who owns Cth N over Soda Creek?

It is owned by the County Highway Agency.