US Bridges

Cth B over Conway Valley Creek

Good

Crawford County, Wisconsin · 0.1M S JCT Cth C to W · Structure no. B12015500000000

Built
2017
8 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete
Length
40 ft
1 main span
Daily traffic
470
2022 count
Owner
County
County Highway Agency

About this bridge

Cth B over Conway Valley Creek is a concrete slab carrying Cth B over Conway Valley Creek in Crawford County, Wisconsin. It was built in 2017, so it is 8 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 470 vehicles a day, roughly 10% of them trucks, projected to reach 570 by 2042. The structure is 40 ft (12.3 m) long and 32 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesCth B
CrossesConway Valley Creek
Location0.1M S JCT Cth C to W
RouteCounty Highway 0B
Coordinates43.39303, -90.87722
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating45.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length40 ft (12.3 m)
Longest span38 ft (11.6 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic470 (2022)
Projected traffic570 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 B over Conway Valley Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is Cth B over Conway Valley Creek 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 September 2023.

How much traffic does Cth B over Conway Valley Creek carry?

About 470 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Cth B over Conway Valley Creek?

The structure is 40 ft (12.3 m) long with a longest span of 38 ft (11.6 m) and a deck 32 ft wide.

Who owns Cth B over Conway Valley Creek?

It is owned by the County Highway Agency.