US Bridges

Lrd 170th Ave/Otte over Otter Creek

PoorPosted for load

Chippewa County, Wisconsin · 1.8 M W Cth H · Structure no. P09094800000000

Built
1969
56 years old
Condition
Poor
inspected July 2024
Type
Channel Beam
Prestressed Concrete
Length
80 ft
2 main spans
Daily traffic
200
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd 170th Ave/Otte over Otter Creek is a prestressed concrete channel beam carrying Lrd 170th Ave/Otte over Otter Creek in Chippewa County, Wisconsin. It was built in 1969, so it is 56 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 200 vehicles a day, projected to reach 209 by 2043. The structure is 80 ft (24.4 m) long and 34 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesLrd 170th Ave/Otte
CrossesOtter Creek
Location1.8 M W Cth H
RouteCity Street 0
Coordinates45.09042, -90.95322
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25.2 US tons
Inventory rating8.9 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length80 ft (24.4 m)
Longest span38 ft (11.6 m)
Deck width34 ft (10.3 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2023)
Projected traffic209 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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$333,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lrd 170th Ave/Otte over Otter Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is Lrd 170th Ave/Otte over Otter Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does Lrd 170th Ave/Otte over Otter Creek carry?

About 200 vehicles per day (2023 count).

How long is Lrd 170th Ave/Otte over Otter Creek?

The structure is 80 ft (24.4 m) long with a longest span of 38 ft (11.6 m) and a deck 34 ft wide.

Who owns Lrd 170th Ave/Otte over Otter Creek?

It is owned by the Town or Township Highway Agency.