US Bridges

Cth K Stillson R over Sth 29

Fair

Chippewa County, Wisconsin · 1.2M S JCT Cth X · Structure no. B09003700000000

Built
1966
59 years old, rebuilt 1992
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
216 ft
4 main spans
Daily traffic
340
2021 count
Owner
State
State Highway Agency

About this bridge

Cth K Stillson R over Sth 29 is a prestressed concrete continuous stringer/multi-beam or girder carrying Cth K Stillson R over Sth 29 in Chippewa County, Wisconsin. It was built in 1966 and reconstructed in 1992, so it is 59 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 340 vehicles a day, projected to reach 408 by 2041. The structure is 216 ft (65.7 m) long and 35 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesCth K Stillson R
CrossesSth 29
Location1.2M S JCT Cth X
RouteCounty Highway 0K
Coordinates44.91112, -91.25722
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.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.4 US tons
Inventory rating25 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length216 ft (65.7 m)
Longest span68 ft (20.7 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2021)
Projected traffic408 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed11.8 mi (19 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cth K Stillson R over Sth 29 built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1992.

What condition is Cth K Stillson R over Sth 29 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 April 2023.

How much traffic does Cth K Stillson R over Sth 29 carry?

About 340 vehicles per day (2021 count).

How long is Cth K Stillson R over Sth 29?

The structure is 216 ft (65.7 m) long with a longest span of 68 ft (20.7 m) and a deck 35 ft wide.

Who owns Cth K Stillson R over Sth 29?

It is owned by the State Highway Agency.