US Bridges

Sth 40 over Clear Creek

Fair

Rusk County, Wisconsin · 1.8M N JCT Cth a · Structure no. B54000800000000

Built
1957
68 years old, rebuilt 1991
Condition
Fair
inspected June 2024
Type
Slab
Concrete
Length
43 ft
1 main span
Daily traffic
770
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 40 over Clear Creek is a concrete slab carrying Sth 40 over Clear Creek in Rusk County, Wisconsin. It was built in 1957 and reconstructed in 1991, so it is 68 years old, older 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 770 vehicles a day, roughly 15% of them trucks, projected to reach 924 by 2041. The structure is 43 ft (13.1 m) long and 39 ft wide. If it were closed, the detour would be 17.4 mi (28 km).

CarriesSth 40
CrossesClear Creek
Location1.8M N JCT Cth a
RouteState Highway 40
Coordinates45.57749, -91.22811
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating41.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length43 ft (13.1 m)
Longest span41 ft (12.6 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic770 (2021)
Projected traffic924 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed17.4 mi (28 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 40 over Clear Creek built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1991.

What condition is Sth 40 over Clear 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 2024.

How much traffic does Sth 40 over Clear Creek carry?

About 770 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is Sth 40 over Clear Creek?

The structure is 43 ft (13.1 m) long with a longest span of 41 ft (12.6 m) and a deck 39 ft wide.

Who owns Sth 40 over Clear Creek?

It is owned by the State Highway Agency.