US Bridges

Cth C over Bonner Branch

Good

Lafayette County, Wisconsin · 0.1M N JCT Cth G · Structure no. B33014000000000

Built
2023
2 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete Continuous
Length
58 ft
2 main spans
Daily traffic
165
2023 count
Owner
County
County Highway Agency

About this bridge

Cth C over Bonner Branch is a concrete continuous slab carrying Cth C over Bonner Branch in Lafayette County, Wisconsin. It was built in 2023, so it is 2 years old, younger than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 165 vehicles a day, roughly 5% of them trucks, projected to reach 180 by 2043. The structure is 58 ft (17.8 m) long and 31 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCth C
CrossesBonner Branch
Location0.1M N JCT Cth G
RouteCounty Highway 0C
CountyLafayette County
StateWisconsin
Coordinates42.74193, -90.1708
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.7 US tons
Inventory rating42.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length58 ft (17.8 m)
Longest span28 ft (8.5 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic165 (2023)
Projected traffic180 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 C over Bonner Branch built?

It was built in 2023, making it 2 years old in 2025.

What condition is Cth C over Bonner Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Cth C over Bonner Branch carry?

About 165 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Cth C over Bonner Branch?

The structure is 58 ft (17.8 m) long with a longest span of 28 ft (8.5 m) and a deck 31 ft wide.

Who owns Cth C over Bonner Branch?

It is owned by the County Highway Agency.