US Bridges

Lrd 1170th Ave (de over Trout Creek

Fair

Dunn County, Wisconsin · 0.4M W JCT Cth M · Structure no. P17092300000000

Built
1929
96 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
25
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd 1170th Ave (de over Trout Creek is a concrete slab carrying Lrd 1170th Ave (de over Trout Creek in Dunn County, Wisconsin. It was built in 1929, so it is 96 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 25 vehicles a day, projected to reach 26 by 2043. The structure is 23 ft (7.1 m) long and 18 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesLrd 1170th Ave (de
CrossesTrout Creek
Location0.4M W JCT Cth M
RouteCity Street 0
CountyDunn County
StateWisconsin
Coordinates45.10232, -91.71008
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating43.2 US tons
Inventory rating25 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length23 ft (7.1 m)
Longest span22 ft (6.6 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2024)
Projected traffic26 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$134,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lrd 1170th Ave (de over Trout Creek built?

It was built in 1929, making it 96 years old in 2025.

What condition is Lrd 1170th Ave (de over Trout 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 July 2024.

How much traffic does Lrd 1170th Ave (de over Trout Creek carry?

About 25 vehicles per day (2024 count).

How long is Lrd 1170th Ave (de over Trout Creek?

The structure is 23 ft (7.1 m) long with a longest span of 22 ft (6.6 m) and a deck 18 ft wide.

Who owns Lrd 1170th Ave (de over Trout Creek?

It is owned by the Town or Township Highway Agency.