US Bridges

Cth Cw over Rock River

Fair

Jefferson County, Wisconsin · 2.8M W JCT Sth 67 · Structure no. B28000700000000

Built
1953
72 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
178 ft
3 main spans
Daily traffic
1,477
2022 count
Owner
County
County Highway Agency

About this bridge

Cth Cw over Rock River is a steel continuous stringer/multi-beam or girder carrying Cth Cw over Rock River in Jefferson County, Wisconsin. It was built in 1953, so it is 72 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 1,477 vehicles a day, projected to reach 1,624 by 2043. The structure is 178 ft (54.3 m) long and 29 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesCth Cw
CrossesRock River
Location2.8M W JCT Sth 67
RouteCounty Highway 0CW
CountyJefferson County
StateWisconsin
Coordinates43.18058, -88.55875
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating21.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length178 ft (54.3 m)
Longest span68 ft (20.7 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,477 (2022)
Projected traffic1,624 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Cth Cw over Rock River built?

It was built in 1953, making it 72 years old in 2025.

What condition is Cth Cw over Rock River 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 July 2024.

How much traffic does Cth Cw over Rock River carry?

About 1,477 vehicles per day (2022 count).

How long is Cth Cw over Rock River?

The structure is 178 ft (54.3 m) long with a longest span of 68 ft (20.7 m) and a deck 29 ft wide.

Who owns Cth Cw over Rock River?

It is owned by the County Highway Agency.