US Bridges

Cth G over Branch River

Fair

Brown County, Wisconsin · 1.9M N JCT Cth W · Structure no. P05004200000000

Built
1957
68 years old
Condition
Fair
inspected September 2023
Type
Culvert
Steel
Length
39 ft
2 main spans
Daily traffic
1,400
2022 count
Owner
County
County Highway Agency

About this bridge

Cth G over Branch River is a steel culvert carrying Cth G over Branch River in Brown County, Wisconsin. It was built in 1957, so it is 68 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 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 1,400 vehicles a day, projected to reach 1,680 by 2042. The structure is 39 ft (12 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCth G
CrossesBranch River
Location1.9M N JCT Cth W
RouteCounty Highway 0G
CountyBrown County
StateWisconsin
Coordinates44.2785, -87.94914
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length39 ft (12 m)
Longest span18 ft (5.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (2022)
Projected traffic1,680 by 2042
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth G over Branch River built?

It was built in 1957, making it 68 years old in 2025.

What condition is Cth G over Branch 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 September 2023.

How much traffic does Cth G over Branch River carry?

About 1,400 vehicles per day (2022 count).

How long is Cth G over Branch River?

The structure is 39 ft (12 m) long with a longest span of 18 ft (5.5 m).

Who owns Cth G over Branch River?

It is owned by the County Highway Agency.