US Bridges

Cth D over Chippewa River 20

Fair

Rusk County, Wisconsin · 2.0M E JCT Cth E · Structure no. B54001800000000

Built
1972
53 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
719 ft
6 main spans
Daily traffic
680
2021 count
Owner
State
State Highway Agency

About this bridge

Cth D over Chippewa River 20 is a steel continuous stringer/multi-beam or girder carrying Cth D over Chippewa River 20 in Rusk County, Wisconsin. It was built in 1972, so it is 53 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 680 vehicles a day, projected to reach 816 by 2041. The structure is 719 ft (219.2 m) long and 34 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

Open in Google Maps
CarriesCth D
CrossesChippewa River 20
Location2.0M E JCT Cth E
RouteCounty Highway 0D
CountyRusk County
StateWisconsin
Coordinates45.30255, -91.19966
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating55.8 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadH 20
Structure length719 ft (219.2 m)
Longest span128 ft (39 m)
Deck width34 ft (10.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic680 (2021)
Projected traffic816 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth D over Chippewa River 20 built?

It was built in 1972, making it 53 years old in 2025.

What condition is Cth D over Chippewa River 20 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 May 2024.

How much traffic does Cth D over Chippewa River 20 carry?

About 680 vehicles per day (2021 count).

How long is Cth D over Chippewa River 20?

The structure is 719 ft (219.2 m) long with a longest span of 128 ft (39 m) and a deck 34 ft wide.

Who owns Cth D over Chippewa River 20?

It is owned by the State Highway Agency.