US Bridges

Lrd Dunbarton RD over Wolf Creek

Fair

Lafayette County, Wisconsin · 1.3M S JCT Sth 11 · Structure no. P33023200000000

Built
1953
72 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
42 ft
1 main span
Daily traffic
88
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd Dunbarton RD over Wolf Creek is a steel stringer/multi-beam or girder carrying Lrd Dunbarton RD over Wolf Creek in Lafayette County, Wisconsin. It was built in 1953, so it is 72 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 88 vehicles a day, projected to reach 96 by 2043. The structure is 42 ft (12.9 m) long and 21 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesLrd Dunbarton RD
CrossesWolf Creek
Location1.3M S JCT Sth 11
RouteCity Street 0
CountyLafayette County
StateWisconsin
Coordinates42.5651, -90.05753
Functional classRural 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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
ScourScour critical; foundations unstable for calculated scour conditions
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 alignment6: Equal to present minimum criteria
Operating rating32.4 US tons
Inventory rating19.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length42 ft (12.9 m)
Longest span41 ft (12.5 m)
Deck width21 ft (6.5 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic88 (2022)
Projected traffic96 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Dunbarton RD over Wolf Creek built?

It was built in 1953, making it 72 years old in 2025.

What condition is Lrd Dunbarton RD over Wolf Creek 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 Dunbarton RD over Wolf Creek carry?

About 88 vehicles per day (2022 count).

How long is Lrd Dunbarton RD over Wolf Creek?

The structure is 42 ft (12.9 m) long with a longest span of 41 ft (12.5 m) and a deck 21 ft wide.

Who owns Lrd Dunbarton RD over Wolf Creek?

It is owned by the Town or Township Highway Agency.