US Bridges

Sth 161 over Nace Creek

Fair

Waupaca County, Wisconsin · 5.8M E JCT Cth T · Structure no. B68006800000000

Built
1996
29 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
1,400
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 161 over Nace Creek is a concrete slab carrying Sth 161 over Nace Creek in Waupaca County, Wisconsin. It was built in 1996, so it is 29 years old, younger than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,400 vehicles a day, roughly 4% of them trucks, projected to reach 1,680 by 2042. The structure is 32 ft (9.9 m) long and 36 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

CarriesSth 161
CrossesNace Creek
Location5.8M E JCT Cth T
RouteState Highway 161
Coordinates44.50703, -89.14877
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable 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 length32 ft (9.9 m)
Longest span30 ft (9.1 m)
Deck width36 ft (10.9 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (2022)
Projected traffic1,680 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 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 161 over Nace Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Sth 161 over Nace Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does Sth 161 over Nace Creek carry?

About 1,400 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Sth 161 over Nace Creek?

The structure is 32 ft (9.9 m) long with a longest span of 30 ft (9.1 m) and a deck 36 ft wide.

Who owns Sth 161 over Nace Creek?

It is owned by the State Highway Agency.