US Bridges

Cth Z over Trade River

Fair

Burnett County, Wisconsin · 0.7M E JCT Sth 87 · Structure no. P07002100000000

Built
1924
101 years old, rebuilt 1974
Condition
Fair
inspected October 2024
Type
Slab
Wood or Timber
Length
26 ft
1 main span
Daily traffic
160
2024 count
Owner
County
County Highway Agency

About this bridge

Cth Z over Trade River is a wood or timber slab carrying Cth Z over Trade River in Burnett County, Wisconsin. It was built in 1924 and reconstructed in 1974, so it is 101 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 160 vehicles a day, projected to reach 171 by 2043. The structure is 26 ft (8 m) long and 32 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

Open in Google Maps
CarriesCth Z
CrossesTrade River
Location0.7M E JCT Sth 87
RouteCounty Highway 0Z
CountyBurnett County
StateWisconsin
Coordinates45.65464, -92.66108
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.6 US tons
Inventory rating46.4 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 15
Structure length26 ft (8 m)
Longest span24 ft (7.4 m)
Deck width32 ft (9.7 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (2024)
Projected traffic171 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 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 Trade River built?

It was built in 1924, making it 101 years old in 2025. It was reconstructed in 1974.

What condition is Cth Z over Trade 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 October 2024.

How much traffic does Cth Z over Trade River carry?

About 160 vehicles per day (2024 count).

How long is Cth Z over Trade River?

The structure is 26 ft (8 m) long with a longest span of 24 ft (7.4 m) and a deck 32 ft wide.

Who owns Cth Z over Trade River?

It is owned by the County Highway Agency.