US Bridges

Cth K over Big Green River

Good

Grant County, Wisconsin · 0.6M S JCT Cth T · Structure no. B22027900000000

Built
2013
12 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
140 ft
1 main span
Daily traffic
212
2022 count
Owner
County
County Highway Agency

About this bridge

Cth K over Big Green River is a prestressed concrete stringer/multi-beam or girder carrying Cth K over Big Green River in Grant County, Wisconsin. It was built in 2013, so it is 12 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 212 vehicles a day, roughly 3% of them trucks, projected to reach 233 by 2043. The structure is 140 ft (42.8 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCth K
CrossesBig Green River
Location0.6M S JCT Cth T
RouteCounty Highway 0K
Coordinates43.0395, -90.79139
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
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 evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.2 US tons
Inventory rating45 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length140 ft (42.8 m)
Longest span136 ft (41.5 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic212 (2022)
Projected traffic233 by 2043
Trucks3%
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 K over Big Green River built?

It was built in 2013, making it 12 years old in 2025.

What condition is Cth K over Big Green River 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 October 2024.

How much traffic does Cth K over Big Green River carry?

About 212 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Cth K over Big Green River?

The structure is 140 ft (42.8 m) long with a longest span of 136 ft (41.5 m) and a deck 32 ft wide.

Who owns Cth K over Big Green River?

It is owned by the County Highway Agency.