US Bridges

Cth F over Yellowstone River

Poor

Lafayette County, Wisconsin · 2.3M N JCT Cth G to E · Structure no. B33008600000000

Built
1936
89 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
114 ft
4 main spans
Daily traffic
505
2022 count
Owner
County
County Highway Agency

About this bridge

Cth F over Yellowstone River is a steel stringer/multi-beam or girder carrying Cth F over Yellowstone River in Lafayette County, Wisconsin. It was built in 1936, so it is 89 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 505 vehicles a day, projected to reach 555 by 2043. The structure is 114 ft (34.7 m) long and 27 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCth F
CrossesYellowstone River
Location2.3M N JCT Cth G to E
RouteCounty Highway 0F
CountyLafayette County
StateWisconsin
Coordinates42.777, -89.9944
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be 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 rating45.2 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length114 ft (34.7 m)
Longest span28 ft (8.6 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic505 (2022)
Projected traffic555 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$557,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth F over Yellowstone River built?

It was built in 1936, making it 89 years old in 2025.

What condition is Cth F over Yellowstone River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Cth F over Yellowstone River carry?

About 505 vehicles per day (2022 count).

How long is Cth F over Yellowstone River?

The structure is 114 ft (34.7 m) long with a longest span of 28 ft (8.6 m) and a deck 27 ft wide.

Who owns Cth F over Yellowstone River?

It is owned by the County Highway Agency.