US Bridges

Cth J over Sth 29

Fair

Chippewa County, Wisconsin · 0.8M S JCT Cth X · Structure no. B09003400000000

Built
1966
59 years old, rebuilt 2013
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
224 ft
4 main spans
Daily traffic
1,800
2022 count
Owner
State
State Highway Agency

About this bridge

Cth J over Sth 29 is a steel continuous stringer/multi-beam or girder carrying Cth J over Sth 29 in Chippewa County, Wisconsin. It was built in 1966 and reconstructed in 2013, 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 1,800 vehicles a day, projected to reach 2,160 by 2042. The structure is 224 ft (68.4 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCth J
CrossesSth 29
Location0.8M S JCT Cth X
RouteCounty Highway 0J
CountyChippewa County
StateWisconsin
Coordinates44.91245, -91.32221
Functional classUrban 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.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating23.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length224 ft (68.4 m)
Longest span74 ft (22.7 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,800 (2022)
Projected traffic2,160 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 J over Sth 29 built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2013.

What condition is Cth J 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 J over Sth 29 carry?

About 1,800 vehicles per day (2022 count).

How long is Cth J over Sth 29?

The structure is 224 ft (68.4 m) long with a longest span of 74 ft (22.7 m) and a deck 35 ft wide.

Who owns Cth J over Sth 29?

It is owned by the State Highway Agency.