US Bridges

Cth Ff over Turtle River

Fair

Iron County, Wisconsin · 5.5M S JCT Ush 51 · Structure no. B26000300000000

Built
1967
58 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
72 ft
1 main span
Daily traffic
782
2024 count
Owner
County
County Highway Agency

About this bridge

Cth Ff over Turtle River is a prestressed concrete stringer/multi-beam or girder carrying Cth Ff over Turtle River in Iron County, Wisconsin. It was built in 1967, so it is 58 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 782 vehicles a day, projected to reach 814 by 2043. The structure is 72 ft (21.9 m) long and 33 ft wide. If it were closed, the detour would be 69.6 mi (112 km).

CarriesCth Ff
CrossesTurtle River
Location5.5M S JCT Ush 51
RouteCounty Highway 0FF
Coordinates46.15086, -90.16225
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.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 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 geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.8 US tons
Inventory rating19.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length72 ft (21.9 m)
Longest span72 ft (21.8 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic782 (2024)
Projected traffic814 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed69.6 mi (112 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 Ff over Turtle River built?

It was built in 1967, making it 58 years old in 2025.

What condition is Cth Ff over Turtle 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 August 2024.

How much traffic does Cth Ff over Turtle River carry?

About 782 vehicles per day (2024 count).

How long is Cth Ff over Turtle River?

The structure is 72 ft (21.9 m) long with a longest span of 72 ft (21.8 m) and a deck 33 ft wide.

Who owns Cth Ff over Turtle River?

It is owned by the County Highway Agency.