US Bridges

Cth F over Duncan Creek

Fair

Chippewa County, Wisconsin · 0.2 M N Cth Q · Structure no. B09008800000000

Built
1971
54 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete Continuous
Length
131 ft
3 main spans
Daily traffic
1,875
2023 count
Owner
County
County Highway Agency

About this bridge

Cth F over Duncan Creek is a concrete continuous slab carrying Cth F over Duncan Creek in Chippewa County, Wisconsin. It was built in 1971, so it is 54 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 1,875 vehicles a day, projected to reach 1,982 by 2042. The structure is 131 ft (39.8 m) long and 47 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCth F
CrossesDuncan Creek
Location0.2 M N Cth Q
RouteCounty Highway 0F
CountyChippewa County
StateWisconsin
Coordinates45.0957, -91.48984
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
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 geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length131 ft (39.8 m)
Longest span52 ft (15.8 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,875 (2023)
Projected traffic1,982 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 F over Duncan Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is Cth F over Duncan Creek 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 November 2023.

How much traffic does Cth F over Duncan Creek carry?

About 1,875 vehicles per day (2023 count).

How long is Cth F over Duncan Creek?

The structure is 131 ft (39.8 m) long with a longest span of 52 ft (15.8 m) and a deck 47 ft wide.

Who owns Cth F over Duncan Creek?

It is owned by the County Highway Agency.