US Bridges

Cth Nn over Spring Creek

Good

Barron County, Wisconsin · 1.0M S JCT Sth 48 · Structure no. B03020000000000

Built
2017
8 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete
Length
40 ft
1 main span
Daily traffic
290
2021 count
Owner
County
County Highway Agency

About this bridge

Cth Nn over Spring Creek is a concrete slab carrying Cth Nn over Spring Creek in Barron County, Wisconsin. It was built in 2017, so it is 8 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 290 vehicles a day, roughly 11% of them trucks, projected to reach 300 by 2042. The structure is 40 ft (12.3 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCth Nn
CrossesSpring Creek
Location1.0M S JCT Sth 48
RouteCounty Highway 0NN
CountyBarron County
StateWisconsin
Coordinates45.5256, -91.6007
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 48 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length40 ft (12.3 m)
Longest span38 ft (11.6 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic290 (2021)
Projected traffic300 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Spring Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is Cth Nn over Spring 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 April 2023.

How much traffic does Cth Nn over Spring Creek carry?

About 290 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is Cth Nn over Spring Creek?

The structure is 40 ft (12.3 m) long with a longest span of 38 ft (11.6 m) and a deck 32 ft wide.

Who owns Cth Nn over Spring Creek?

It is owned by the County Highway Agency.