US Bridges

Cth G over Pecatonica River

FairPosted for load

Lafayette County, Wisconsin · 0.1M E JCT Cth C · Structure no. B33062500000000

Built
1940
85 years old, rebuilt 1985
Condition
Fair
inspected August 2024
Type
Truss - Thru
Steel
Length
165 ft
1 main span
Daily traffic
387
2022 count
Owner
County
County Highway Agency

About this bridge

Cth G over Pecatonica River is a steel truss - thru carrying Cth G over Pecatonica River in Lafayette County, Wisconsin. It was built in 1940 and reconstructed in 1985, so it is 85 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. Its operating status is: posted for other load-capacity restriction.

It carries about 387 vehicles a day, projected to reach 425 by 2043. The structure is 165 ft (50.3 m) long and 23 ft wide. If it were closed, the detour would be 10.6 mi (17 km).

Location

Open in Google Maps
CarriesCth G
CrossesPecatonica River
Location0.1M E JCT Cth C
RouteCounty Highway 0G
CountyLafayette County
StateWisconsin
Coordinates42.74108, -90.16898
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 statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating21.4 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length165 ft (50.3 m)
Longest span161 ft (49.1 m)
Deck width23 ft (7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deck14 ft (4.2 m)

Traffic and service

Average daily traffic387 (2022)
Projected traffic425 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed10.6 mi (17 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$777,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth G over Pecatonica River built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1985.

What condition is Cth G over Pecatonica 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 August 2024.

How much traffic does Cth G over Pecatonica River carry?

About 387 vehicles per day (2022 count).

How long is Cth G over Pecatonica River?

The structure is 165 ft (50.3 m) long with a longest span of 161 ft (49.1 m) and a deck 23 ft wide.

Who owns Cth G over Pecatonica River?

It is owned by the County Highway Agency.