US Bridges

Cth G over Duck Creek

Fair

Columbia County, Wisconsin · 2.2M W JCT Sth 22 · Structure no. B11010500000000

Built
1992
33 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete Continuous
Length
64 ft
2 main spans
Daily traffic
311
2022 count
Owner
County
County Highway Agency

About this bridge

Cth G over Duck Creek is a concrete continuous slab carrying Cth G over Duck Creek in Columbia County, Wisconsin. It was built in 1992, so it is 33 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 311 vehicles a day, projected to reach 342 by 2043. The structure is 64 ft (19.4 m) long and 32 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

Open in Google Maps
CarriesCth G
CrossesDuck Creek
Location2.2M W JCT Sth 22
RouteCounty Highway 0G
CountyColumbia County
StateWisconsin
Coordinates43.50142, -89.34518
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
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 rating77.4 US tons
Inventory rating46.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length64 ft (19.4 m)
Longest span31 ft (9.4 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic311 (2022)
Projected traffic342 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 Duck Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Cth G over Duck 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 July 2024.

How much traffic does Cth G over Duck Creek carry?

About 311 vehicles per day (2022 count).

How long is Cth G over Duck Creek?

The structure is 64 ft (19.4 m) long with a longest span of 31 ft (9.4 m) and a deck 32 ft wide.

Who owns Cth G over Duck Creek?

It is owned by the County Highway Agency.