US Bridges

Lrd Smyth RD over N Br Oconto River

PoorPosted for load

Oconto County, Wisconsin · 3.2M E JCT Cth F · Structure no. P42004200000000

Built
1928
97 years old
Condition
Poor
inspected September 2024
Type
Truss - Thru
Steel
Length
94 ft
1 main span
Daily traffic
50
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd Smyth RD over N Br Oconto River is a steel truss - thru carrying Lrd Smyth RD over N Br Oconto River in Oconto County, Wisconsin. It was built in 1928, so it is 97 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 3 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 50 vehicles a day, projected to reach 55 by 2043. The structure is 94 ft (28.8 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesLrd Smyth RD
CrossesN Br Oconto River
Location3.2M E JCT Cth F
RouteCity Street 0
CountyOconto County
StateWisconsin
Coordinates45.31483, -88.41506
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.8 US tons
Inventory rating21.4 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length94 ft (28.8 m)
Longest span90 ft (27.4 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deck12 ft (3.7 m)

Traffic and service

Average daily traffic50 (2023)
Projected traffic55 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 statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$384,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lrd Smyth RD over N Br Oconto River built?

It was built in 1928, making it 97 years old in 2025.

What condition is Lrd Smyth RD over N Br Oconto River 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 September 2024.

How much traffic does Lrd Smyth RD over N Br Oconto River carry?

About 50 vehicles per day (2023 count).

How long is Lrd Smyth RD over N Br Oconto River?

The structure is 94 ft (28.8 m) long with a longest span of 90 ft (27.4 m) and a deck 24 ft wide.

Who owns Lrd Smyth RD over N Br Oconto River?

It is owned by the Town or Township Highway Agency.