US Bridges

Lrd Oconomowoc Ave over Rock River

Fair

Jefferson County, Wisconsin · 0.1M E JCT Sth 26 · Structure no. B28006500000000

Built
1983
42 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
281 ft
3 main spans
Daily traffic
1,700
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lrd Oconomowoc Ave over Rock River is a prestressed concrete continuous stringer/multi-beam or girder carrying Lrd Oconomowoc Ave over Rock River in Jefferson 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 6 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 1,700 vehicles a day, projected to reach 2,040 by 2042. The structure is 281 ft (85.7 m) long and 38 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesLrd Oconomowoc Ave
CrossesRock River
Location0.1M E JCT Sth 26
RouteCity Street 0
CountyJefferson County
StateWisconsin
Coordinates43.18347, -88.7045
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 alignment6: Equal to present minimum criteria
Operating rating73.9 US tons
Inventory rating30.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length281 ft (85.7 m)
Longest span93 ft (28.4 m)
Deck width38 ft (11.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2022)
Projected traffic2,040 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Oconomowoc Ave over Rock River built?

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

What condition is Lrd Oconomowoc Ave over Rock 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 September 2024.

How much traffic does Lrd Oconomowoc Ave over Rock River carry?

About 1,700 vehicles per day (2022 count).

How long is Lrd Oconomowoc Ave over Rock River?

The structure is 281 ft (85.7 m) long with a longest span of 93 ft (28.4 m) and a deck 38 ft wide.

Who owns Lrd Oconomowoc Ave over Rock River?

It is owned by the City or Municipal Highway Agency.