US Bridges

Lrd Dunn - ST Croi over Sandy Creek

Fair

St. Croix County, Wisconsin · 0.6M N JCT Sth 170 · Structure no. P55094100000000

Built
1971
54 years old
Condition
Fair
inspected October 2024
Type
Slab
Wood or Timber
Length
26 ft
1 main span
Daily traffic
310
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd Dunn - ST Croi over Sandy Creek is a wood or timber slab carrying Lrd Dunn - ST Croi over Sandy Creek in St. Croix County, Wisconsin. It was built in 1971, so it is 54 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 310 vehicles a day, projected to reach 337 by 2043. The structure is 26 ft (8 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesLrd Dunn - ST Croi
CrossesSandy Creek
Location0.6M N JCT Sth 170
RouteCity Street 0
CountySt. Croix County
StateWisconsin
Coordinates45.06188, -92.13635
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating46.4 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 15
Structure length26 ft (8 m)
Longest span25 ft (7.7 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic310 (2022)
Projected traffic337 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Dunn - ST Croi over Sandy Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is Lrd Dunn - ST Croi over Sandy 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 October 2024.

How much traffic does Lrd Dunn - ST Croi over Sandy Creek carry?

About 310 vehicles per day (2022 count).

How long is Lrd Dunn - ST Croi over Sandy Creek?

The structure is 26 ft (8 m) long with a longest span of 25 ft (7.7 m) and a deck 28 ft wide.

Who owns Lrd Dunn - ST Croi over Sandy Creek?

It is owned by the Town or Township Highway Agency.