US Bridges

Cth Bb over Trib Lake

Good

Green Lake County, Wisconsin · 0.5M N Cth B · Structure no. B24003600000000

Built
2009
16 years old
Condition
Good
inspected May 2023
Type
Slab
Concrete
Length
38 ft
1 main span
Daily traffic
154
2022 count
Owner
County
County Highway Agency

About this bridge

Cth Bb over Trib Lake is a concrete slab carrying Cth Bb over Trib Lake in Green Lake County, Wisconsin. It was built in 2009, so it is 16 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 154 vehicles a day, roughly 3% of them trucks, projected to reach 169 by 2042. The structure is 38 ft (11.5 m) long and 31 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesCth Bb
CrossesTrib Lake
Location0.5M N Cth B
RouteCounty Highway 0BB
Coordinates43.74492, -89.06522
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 protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.6 US tons
Inventory rating38.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length38 ft (11.5 m)
Longest span35 ft (10.7 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic154 (2022)
Projected traffic169 by 2042
Trucks3%
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 Bb over Trib Lake built?

It was built in 2009, making it 16 years old in 2025.

What condition is Cth Bb over Trib Lake 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 May 2023.

How much traffic does Cth Bb over Trib Lake carry?

About 154 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Cth Bb over Trib Lake?

The structure is 38 ft (11.5 m) long with a longest span of 35 ft (10.7 m) and a deck 31 ft wide.

Who owns Cth Bb over Trib Lake?

It is owned by the County Highway Agency.