US Bridges

Cth O over Ames Branch

Good

Lafayette County, Wisconsin · 2.4M S JCT Sth 81 · Structure no. B33013900000000

Built
2023
2 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete
Length
31 ft
1 main span
Daily traffic
870
2023 count
Owner
County
County Highway Agency

About this bridge

Cth O over Ames Branch is a concrete slab carrying Cth O over Ames 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 870 vehicles a day, roughly 7% of them trucks, projected to reach 960 by 2043. The structure is 31 ft (9.3 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCth O
CrossesAmes Branch
Location2.4M S JCT Sth 81
RouteCounty Highway 0O
CountyLafayette County
StateWisconsin
Coordinates42.63191, -90.2501
Functional classRural Major Collector

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 protection9 ExcellentNo problems noted.
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating40 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length31 ft (9.3 m)
Longest span28 ft (8.5 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic870 (2023)
Projected traffic960 by 2043
Trucks7%
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 O over Ames Branch built?

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

What condition is Cth O over Ames 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 O over Ames Branch carry?

About 870 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Cth O over Ames Branch?

The structure is 31 ft (9.3 m) long with a longest span of 28 ft (8.5 m) and a deck 34 ft wide.

Who owns Cth O over Ames Branch?

It is owned by the County Highway Agency.