US Bridges

Lrd Cth I over Kelly Brook

Fair

Oconto County, Wisconsin · 0.6M S JCT Cth a · Structure no. B42002600000000

Built
1981
44 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete
Length
44 ft
1 main span
Daily traffic
201
2022 count
Owner
County
County Highway Agency

About this bridge

Lrd Cth I over Kelly Brook is a concrete slab carrying Lrd Cth I over Kelly Brook in Oconto County, Wisconsin. It was built in 1981, so it is 44 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 201 vehicles a day, projected to reach 221 by 2043. The structure is 44 ft (13.3 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesLrd Cth I
CrossesKelly Brook
Location0.6M S JCT Cth a
RouteCity Street 0
CountyOconto County
StateWisconsin
Coordinates44.94247, -88.12407
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 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 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 rating50.4 US tons
Inventory rating30.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length44 ft (13.3 m)
Longest span41 ft (12.5 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic201 (2022)
Projected traffic221 by 2043
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 Lrd Cth I over Kelly Brook built?

It was built in 1981, making it 44 years old in 2025.

What condition is Lrd Cth I over Kelly Brook 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 September 2024.

How much traffic does Lrd Cth I over Kelly Brook carry?

About 201 vehicles per day (2022 count).

How long is Lrd Cth I over Kelly Brook?

The structure is 44 ft (13.3 m) long with a longest span of 41 ft (12.5 m) and a deck 28 ft wide.

Who owns Lrd Cth I over Kelly Brook?

It is owned by the County Highway Agency.