US Bridges

Cth Nn over Br Buffalo River

Good

Trempealeau County, Wisconsin · 0.6M N JCT Ush 10 · Structure no. B61017600000000

Built
2003
22 years old
Condition
Good
inspected May 2024
Type
Slab
Concrete
Length
28 ft
1 main span
Daily traffic
636
2022 count
Owner
County
County Highway Agency

About this bridge

Cth Nn over Br Buffalo River is a concrete slab carrying Cth Nn over Br Buffalo River in Trempealeau County, Wisconsin. It was built in 2003, so it is 22 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 636 vehicles a day, roughly 3% of them trucks, projected to reach 699 by 2043. The structure is 28 ft (8.4 m) long and 32 ft wide. If it were closed, the detour would be 15.5 mi (25 km).

CarriesCth Nn
CrossesBr Buffalo River
Location0.6M N JCT Ush 10
RouteCounty Highway 0NN
Coordinates44.58664, -91.21764
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 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 alignment6: Equal to present minimum criteria
Operating rating82.8 US tons
Inventory rating48.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length28 ft (8.4 m)
Longest span25 ft (7.6 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic636 (2022)
Projected traffic699 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed15.5 mi (25 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 Nn over Br Buffalo River built?

It was built in 2003, making it 22 years old in 2025.

What condition is Cth Nn over Br Buffalo 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 May 2024.

How much traffic does Cth Nn over Br Buffalo River carry?

About 636 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Cth Nn over Br Buffalo River?

The structure is 28 ft (8.4 m) long with a longest span of 25 ft (7.6 m) and a deck 32 ft wide.

Who owns Cth Nn over Br Buffalo River?

It is owned by the County Highway Agency.