US Bridges

Cth X over Sth 29

Fair

Chippewa County, Wisconsin · 0.2M W JCT Cth D · Structure no. B09002200000000

Built
1963
62 years old, rebuilt 1993
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
335 ft
4 main spans
Daily traffic
740
2021 count
Owner
State
State Highway Agency

About this bridge

Cth X over Sth 29 is a steel continuous stringer/multi-beam or girder carrying Cth X over Sth 29 in Chippewa County, Wisconsin. It was built in 1963 and reconstructed in 1993, so it is 62 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 5 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 740 vehicles a day, projected to reach 888 by 2041. The structure is 335 ft (102.1 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCth X
CrossesSth 29
Location0.2M W JCT Cth D
RouteCounty Highway 0X
CountyChippewa County
StateWisconsin
Coordinates44.94428, -91.03707
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.8 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length335 ft (102.1 m)
Longest span114 ft (34.6 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic740 (2021)
Projected traffic888 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 X over Sth 29 built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1993.

What condition is Cth X 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 X over Sth 29 carry?

About 740 vehicles per day (2021 count).

How long is Cth X over Sth 29?

The structure is 335 ft (102.1 m) long with a longest span of 114 ft (34.6 m) and a deck 35 ft wide.

Who owns Cth X over Sth 29?

It is owned by the State Highway Agency.