US Bridges

Sth 55 over Nine Mile Creek

Good

Langlade County, Wisconsin · 5.7M N JCT Sth 64 · Structure no. B34005900000000

Built
2024
1 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete
Length
37 ft
1 main span
Daily traffic
980
2023 count
Owner
State
State Highway Agency

About this bridge

Sth 55 over Nine Mile Creek is a concrete slab carrying Sth 55 over Nine Mile Creek in Langlade County, Wisconsin. It was built in 2024, so it is 1 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 980 vehicles a day, roughly 12% of them trucks, projected to reach 1,120 by 2045. The structure is 37 ft (11.2 m) long and 79 ft wide. If it were closed, the detour would be 37.9 mi (61 km).

CarriesSth 55
CrossesNine Mile Creek
Location5.7M N JCT Sth 64
RouteState Highway 55
Coordinates45.24476, -88.79239
Functional classRural Minor Arterial

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 inspectionSeptember 2024
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 geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.1 US tons
Inventory rating55.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length37 ft (11.2 m)
Longest span34 ft (10.4 m)
Deck width79 ft (24.1 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic980 (2023)
Projected traffic1,120 by 2045
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.9 mi (61 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Sth 55 over Nine Mile Creek built?

It was built in 2024, making it 1 years old in 2025.

What condition is Sth 55 over Nine Mile 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 September 2024.

How much traffic does Sth 55 over Nine Mile Creek carry?

About 980 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Sth 55 over Nine Mile Creek?

The structure is 37 ft (11.2 m) long with a longest span of 34 ft (10.4 m) and a deck 79 ft wide.

Who owns Sth 55 over Nine Mile Creek?

It is owned by the State Highway Agency.