US Bridges

Lrd Old Middleton over Wisconsin & Southern RR

Fair

Dane County, Wisconsin · .1M N JCT of Old Sauk RD · Structure no. B13051300000000

Built
2001
24 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
105 ft
2 main spans
Daily traffic
4,850
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lrd Old Middleton over Wisconsin & Southern RR is a prestressed concrete continuous stringer/multi-beam or girder carrying Lrd Old Middleton over Wisconsin & Southern RR in Dane County, Wisconsin. It was built in 2001, so it is 24 years old, younger 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 4,850 vehicles a day, projected to reach 5,247 by 2043. The structure is 105 ft (31.9 m) long and 53 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesLrd Old Middleton
CrossesWisconsin & Southern RR
Location.1M N JCT of Old Sauk RD
RouteCity Street 0
CountyDane County
StateWisconsin
Coordinates43.08008, -89.48072
Functional classUrban Minor Arterial

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.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
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
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.2 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length105 ft (31.9 m)
Longest span71 ft (21.7 m)
Deck width53 ft (16.2 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,850 (2022)
Projected traffic5,247 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed5.6 mi (9 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lrd Old Middleton over Wisconsin & Southern RR built?

It was built in 2001, making it 24 years old in 2025.

What condition is Lrd Old Middleton over Wisconsin & Southern RR 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 Old Middleton over Wisconsin & Southern RR carry?

About 4,850 vehicles per day (2022 count).

How long is Lrd Old Middleton over Wisconsin & Southern RR?

The structure is 105 ft (31.9 m) long with a longest span of 71 ft (21.7 m) and a deck 53 ft wide.

Who owns Lrd Old Middleton over Wisconsin & Southern RR?

It is owned by the City or Municipal Highway Agency.