US Bridges

Sth 124 SB over Lrd Private Rd-Duncan CR

Fair

Chippewa County, Wisconsin · 0.1M E JCT Sth 124 to N · Structure no. B09009500000000

Built
1994
31 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
126 ft
1 main span
Daily traffic
7,700
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 124 SB over Lrd Private Rd-Duncan CR is a prestressed concrete stringer/multi-beam or girder carrying Sth 124 SB over Lrd Private Rd-Duncan CR in Chippewa County, Wisconsin. It was built in 1994, so it is 31 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 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 7,700 vehicles a day, roughly 3% of them trucks, projected to reach 15,542 by 2042. The structure is 126 ft (38.5 m) long and 47 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesSth 124 SB
CrossesLrd Private Rd-Duncan CR
Location0.1M E JCT Sth 124 to N
RouteState Highway 124
CountyChippewa County
StateWisconsin
Coordinates44.93334, -91.3886
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.6 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length126 ft (38.5 m)
Longest span122 ft (37.3 m)
Deck width47 ft (14.3 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,700 (2021)
Projected traffic15,542 by 2042
Trucks3%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$800,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sth 124 SB over Lrd Private Rd-Duncan CR built?

It was built in 1994, making it 31 years old in 2025.

What condition is Sth 124 SB over Lrd Private Rd-Duncan CR 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 May 2023.

How much traffic does Sth 124 SB over Lrd Private Rd-Duncan CR carry?

About 7,700 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Sth 124 SB over Lrd Private Rd-Duncan CR?

The structure is 126 ft (38.5 m) long with a longest span of 122 ft (37.3 m) and a deck 47 ft wide.

Who owns Sth 124 SB over Lrd Private Rd-Duncan CR?

It is owned by the State Highway Agency.