US Bridges

Sth 161 over North Fork Blake Creek

Fair

Waupaca County, Wisconsin · 0.3M E JCT K to S · Structure no. B68008100000000

Built
1996
29 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete
Length
34 ft
1 main span
Daily traffic
1,100
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 161 over North Fork Blake Creek is a concrete slab carrying Sth 161 over North Fork Blake 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 1,100 vehicles a day, roughly 5% of them trucks, projected to reach 1,480 by 2042. The structure is 34 ft (10.5 m) long and 32 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesSth 161
CrossesNorth Fork Blake Creek
Location0.3M E JCT K to S
RouteState Highway 161
CountyWaupaca County
StateWisconsin
Coordinates44.51049, -88.975
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.
Substructure7 GoodSome minor problems.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.4 US tons
Inventory rating44.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length34 ft (10.5 m)
Longest span32 ft (9.8 m)
Deck width32 ft (9.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2022)
Projected traffic1,480 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 North Fork Blake Creek built?

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

What condition is Sth 161 over North Fork Blake 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 North Fork Blake Creek carry?

About 1,100 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Sth 161 over North Fork Blake Creek?

The structure is 34 ft (10.5 m) long with a longest span of 32 ft (9.8 m) and a deck 32 ft wide.

Who owns Sth 161 over North Fork Blake Creek?

It is owned by the State Highway Agency.