US Bridges

Cth W over Coon Branch

Good

Lafayette County, Wisconsin · 0.6M W JCT Cth J · Structure no. B33003900000000

Built
1986
39 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete
Length
44 ft
1 main span
Daily traffic
446
2022 count
Owner
County
County Highway Agency

About this bridge

Cth W over Coon Branch is a concrete slab carrying Cth W over Coon Branch in Lafayette County, Wisconsin. It was built in 1986, so it is 39 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 446 vehicles a day, projected to reach 490 by 2043. The structure is 44 ft (13.5 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCth W
CrossesCoon Branch
Location0.6M W JCT Cth J
RouteCounty Highway 0W
CountyLafayette County
StateWisconsin
Coordinates42.54002, -90.37556
Functional classRural Major Collector

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 inspectionOctober 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 rating66.6 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length44 ft (13.5 m)
Longest span42 ft (12.8 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic446 (2022)
Projected traffic490 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 W over Coon Branch built?

It was built in 1986, making it 39 years old in 2025.

What condition is Cth W over Coon Branch 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 W over Coon Branch carry?

About 446 vehicles per day (2022 count).

How long is Cth W over Coon Branch?

The structure is 44 ft (13.5 m) long with a longest span of 42 ft (12.8 m) and a deck 30 ft wide.

Who owns Cth W over Coon Branch?

It is owned by the County Highway Agency.