US Bridges

Lrd Madison ST (ct over Rock River

Fair

Fond du Lac County, Wisconsin · 0.3M N JCT Sth 49 · Structure no. B20000800000000

Built
1950
75 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
113 ft
2 main spans
Daily traffic
1,800
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lrd Madison ST (ct over Rock River is a steel continuous stringer/multi-beam or girder carrying Lrd Madison ST (ct over Rock River in Fond du Lac County, Wisconsin. It was built in 1950, so it is 75 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 1,800 vehicles a day, projected to reach 2,160 by 2041. The structure is 113 ft (34.4 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesLrd Madison ST (ct
CrossesRock River
Location0.3M N JCT Sth 49
RouteCity Street 0
CountyFond du Lac County
StateWisconsin
Coordinates43.63768, -88.72979
Functional classUrban Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 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 rating45.2 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length113 ft (34.4 m)
Longest span53 ft (16.2 m)
Deck width41 ft (12.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,800 (2021)
Projected traffic2,160 by 2041
Trucks0%
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 Madison ST (ct over Rock River built?

It was built in 1950, making it 75 years old in 2025.

What condition is Lrd Madison ST (ct 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 June 2024.

How much traffic does Lrd Madison ST (ct over Rock River carry?

About 1,800 vehicles per day (2021 count).

How long is Lrd Madison ST (ct over Rock River?

The structure is 113 ft (34.4 m) long with a longest span of 53 ft (16.2 m) and a deck 41 ft wide.

Who owns Lrd Madison ST (ct over Rock River?

It is owned by the City or Municipal Highway Agency.