US Bridges

Lrd Kilbourne RD over Oconomowoc River

Fair

Waukesha County, Wisconsin · .25M W Cth E · Structure no. B67030400000000

Built
1983
42 years old
Condition
Fair
inspected October 2024
Type
Culvert
Steel
Length
24 ft
3 main spans
Daily traffic
265
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd Kilbourne RD over Oconomowoc River is a steel culvert carrying Lrd Kilbourne RD over Oconomowoc River in Waukesha County, Wisconsin. It was built in 1983, so it is 42 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 265 vehicles a day, projected to reach 291 by 2043. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesLrd Kilbourne RD
CrossesOconomowoc River
Location.25M W Cth E
RouteCity Street 0
CountyWaukesha County
StateWisconsin
Coordinates43.16119, -88.35562
Functional classUrban 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
Channel and channel protection8 Very GoodNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating54 US tons
Inventory rating32.2 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic265 (2022)
Projected traffic291 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$179,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lrd Kilbourne RD over Oconomowoc River built?

It was built in 1983, making it 42 years old in 2025.

What condition is Lrd Kilbourne RD over Oconomowoc River 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 October 2024.

How much traffic does Lrd Kilbourne RD over Oconomowoc River carry?

About 265 vehicles per day (2022 count).

How long is Lrd Kilbourne RD over Oconomowoc River?

The structure is 24 ft (7.3 m) long with a longest span of 8 ft (2.4 m).

Who owns Lrd Kilbourne RD over Oconomowoc River?

It is owned by the Town or Township Highway Agency.