US Bridges

Cth a over Kelly Brook

Good

Oconto County, Wisconsin · 2.9M W JCT Ush 141 · Structure no. B42002900000000

Built
1998
27 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete
Length
62 ft
2 main spans
Daily traffic
2,900
2022 count
Owner
County
County Highway Agency

About this bridge

Cth a over Kelly Brook is a concrete slab carrying Cth a over Kelly Brook in Oconto County, Wisconsin. It was built in 1998, so it is 27 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 2,900 vehicles a day, projected to reach 3,480 by 2042. The structure is 62 ft (18.9 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCth a
CrossesKelly Brook
Location2.9M W JCT Ush 141
RouteCounty Highway 0A
Coordinates44.9514, -88.10676
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 inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.7 US tons
Inventory rating42.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span30 ft (9 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2022)
Projected traffic3,480 by 2042
Trucks0%
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 a over Kelly Brook built?

It was built in 1998, making it 27 years old in 2025.

What condition is Cth a over Kelly Brook 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 a over Kelly Brook carry?

About 2,900 vehicles per day (2022 count).

How long is Cth a over Kelly Brook?

The structure is 62 ft (18.9 m) long with a longest span of 30 ft (9 m) and a deck 34 ft wide.

Who owns Cth a over Kelly Brook?

It is owned by the County Highway Agency.