US Bridges

Cth W over Yellowstone R

Good

Iowa County, Wisconsin · 0.1 M N JCT Cth Dd to Sou · Structure no. B25015700000000

Built
2006
19 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete
Length
31 ft
1 main span
Daily traffic
320
2022 count
Owner
County
County Highway Agency

About this bridge

Cth W over Yellowstone R is a concrete slab carrying Cth W over Yellowstone R in Iowa County, Wisconsin. It was built in 2006, so it is 19 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 320 vehicles a day, roughly 10% of them trucks, projected to reach 384 by 2042. The structure is 31 ft (9.3 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCth W
CrossesYellowstone R
Location0.1 M N JCT Cth Dd to Sou
RouteCounty Highway 0W
Coordinates42.85667, -90.03469
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length31 ft (9.3 m)
Longest span28 ft (8.5 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic320 (2022)
Projected traffic384 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 W over Yellowstone R built?

It was built in 2006, making it 19 years old in 2025.

What condition is Cth W over Yellowstone R 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 2024.

How much traffic does Cth W over Yellowstone R carry?

About 320 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Cth W over Yellowstone R?

The structure is 31 ft (9.3 m) long with a longest span of 28 ft (8.5 m) and a deck 30 ft wide.

Who owns Cth W over Yellowstone R?

It is owned by the County Highway Agency.