US Bridges

Cth Q over Duncan Creek

Fair

Chippewa County, Wisconsin · 1.5 M N 130th Avenue · Structure no. B09020000000000

Built
1997
28 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
157 ft
2 main spans
Daily traffic
785
2023 count
Owner
County
County Highway Agency

About this bridge

Cth Q over Duncan Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Cth Q over Duncan Creek in Chippewa County, Wisconsin. It was built in 1997, so it is 28 years old, younger 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 785 vehicles a day, projected to reach 827 by 2042. The structure is 157 ft (47.8 m) long and 31 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesCth Q
CrossesDuncan Creek
Location1.5 M N 130th Avenue
RouteCounty Highway 1
CountyChippewa County
StateWisconsin
Coordinates45.051, -91.46758
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.6 US tons
Inventory rating42.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length157 ft (47.8 m)
Longest span77 ft (23.5 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic785 (2023)
Projected traffic827 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Q over Duncan Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Cth Q 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 December 2023.

How much traffic does Cth Q over Duncan Creek carry?

About 785 vehicles per day (2023 count).

How long is Cth Q over Duncan Creek?

The structure is 157 ft (47.8 m) long with a longest span of 77 ft (23.5 m) and a deck 31 ft wide.

Who owns Cth Q over Duncan Creek?

It is owned by the County Highway Agency.