US Bridges

Cth O over Little Platte River

Good

Grant County, Wisconsin · 2.6M W JCT Ush 151 · Structure no. B22014800000000

Built
1995
30 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete Continuous
Length
110 ft
3 main spans
Daily traffic
600
2022 count
Owner
County
County Highway Agency

About this bridge

Cth O over Little Platte River is a concrete continuous slab carrying Cth O over Little Platte River in Grant County, Wisconsin. It was built in 1995, so it is 30 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 600 vehicles a day, roughly 7% of them trucks, projected to reach 699 by 2043. The structure is 110 ft (33.5 m) long and 30 ft wide. If it were closed, the detour would be 10.6 mi (17 km).

CarriesCth O
CrossesLittle Platte River
Location2.6M W JCT Ush 151
RouteCounty Highway 0O
Coordinates42.68947, -90.56392
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.6 US tons
Inventory rating44.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length110 ft (33.5 m)
Longest span44 ft (13.4 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2022)
Projected traffic699 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed10.6 mi (17 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 O over Little Platte River built?

It was built in 1995, making it 30 years old in 2025.

What condition is Cth O over Little Platte River 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 2024.

How much traffic does Cth O over Little Platte River carry?

About 600 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Cth O over Little Platte River?

The structure is 110 ft (33.5 m) long with a longest span of 44 ft (13.4 m) and a deck 30 ft wide.

Who owns Cth O over Little Platte River?

It is owned by the County Highway Agency.