US Bridges

Cth Hh over White Hollow Creek

Good

Iowa County, Wisconsin · 1.3M S JCT Cth H · Structure no. B25017800000000

Built
2020
5 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete
Length
45 ft
1 main span
Daily traffic
180
2022 count
Owner
County
County Highway Agency

About this bridge

Cth Hh over White Hollow Creek is a concrete slab carrying Cth Hh over White Hollow Creek in Iowa County, Wisconsin. It was built in 2020, so it is 5 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 180 vehicles a day, roughly 6% of them trucks, projected to reach 210 by 2040. The structure is 45 ft (13.6 m) long and 32 ft wide. If it were closed, the detour would be 44.7 mi (72 km).

CarriesCth Hh
CrossesWhite Hollow Creek
Location1.3M S JCT Cth H
RouteCounty Highway 0HH
Coordinates43.11292, -89.93408
Functional classRural Minor Collector

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.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating38.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length45 ft (13.6 m)
Longest span42 ft (12.8 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (2022)
Projected traffic210 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.7 mi (72 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 Hh over White Hollow Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is Cth Hh over White Hollow 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 October 2024.

How much traffic does Cth Hh over White Hollow Creek carry?

About 180 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Cth Hh over White Hollow Creek?

The structure is 45 ft (13.6 m) long with a longest span of 42 ft (12.8 m) and a deck 32 ft wide.

Who owns Cth Hh over White Hollow Creek?

It is owned by the County Highway Agency.