US Bridges

Lrd Division ST over Rock River

Fair

Jefferson County, Wisconsin · 0.4M E JCT Sth 109 · Structure no. P28070700000000

Built
1937
88 years old
Condition
Fair
inspected September 2024
Type
Frame
Concrete Continuous
Length
213 ft
3 main spans
Daily traffic
3,700
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lrd Division ST over Rock River is a concrete continuous frame carrying Lrd Division ST over Rock River in Jefferson County, Wisconsin. It was built in 1937, so it is 88 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 3,700 vehicles a day, roughly 4% of them trucks, projected to reach 4,440 by 2043. The structure is 213 ft (64.9 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLrd Division ST
CrossesRock River
Location0.4M E JCT Sth 109
RouteCity Street 0
CountyJefferson County
StateWisconsin
Coordinates43.19731, -88.71186
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
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 protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length213 ft (64.9 m)
Longest span70 ft (21.3 m)
Deck width41 ft (12.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,700 (2022)
Projected traffic4,440 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Division ST over Rock River built?

It was built in 1937, making it 88 years old in 2025.

What condition is Lrd Division ST 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 Division ST over Rock River carry?

About 3,700 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Lrd Division ST over Rock River?

The structure is 213 ft (64.9 m) long with a longest span of 70 ft (21.3 m) and a deck 41 ft wide.

Who owns Lrd Division ST over Rock River?

It is owned by the City or Municipal Highway Agency.