US Bridges

Cth Z over Bluff Creek

Good

Douglas County, Wisconsin · 2.4M W JCT Cth E · Structure no. B16010200000000

Built
2004
21 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
78 ft
1 main span
Daily traffic
1,116
2022 count
Owner
County
County Highway Agency

About this bridge

Cth Z over Bluff Creek is a prestressed concrete stringer/multi-beam or girder carrying Cth Z over Bluff Creek in Douglas County, Wisconsin. It was built in 2004, so it is 21 years old, younger than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,116 vehicles a day, projected to reach 1,227 by 2043. The structure is 78 ft (23.9 m) long and 32 ft wide. If it were closed, the detour would be 13.7 mi (22 km).

CarriesCth Z
CrossesBluff Creek
Location2.4M W JCT Cth E
RouteCounty Highway 0Z
Coordinates46.64764, -92.04903
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length78 ft (23.9 m)
Longest span76 ft (23.2 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,116 (2022)
Projected traffic1,227 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13.7 mi (22 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 Z over Bluff Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is Cth Z over Bluff Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does Cth Z over Bluff Creek carry?

About 1,116 vehicles per day (2022 count).

How long is Cth Z over Bluff Creek?

The structure is 78 ft (23.9 m) long with a longest span of 76 ft (23.2 m) and a deck 32 ft wide.

Who owns Cth Z over Bluff Creek?

It is owned by the County Highway Agency.