US Bridges

Lrd Thornapple RD over Thornapple River

Fair

Rusk County, Wisconsin · 0.7M N JCT Ush 8-105 · Structure no. B54002000000000

Built
1976
49 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
144 ft
3 main spans
Daily traffic
113
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd Thornapple RD over Thornapple River is a concrete continuous slab carrying Lrd Thornapple RD over Thornapple River in Rusk County, Wisconsin. It was built in 1976, so it is 49 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 113 vehicles a day, projected to reach 118 by 2043. The structure is 144 ft (43.9 m) long and 26 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesLrd Thornapple RD
CrossesThornapple River
Location0.7M N JCT Ush 8-105
RouteCity Street 0
Coordinates45.47467, -91.23589
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 protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 alignment8: Equal to present desirable criteria
Operating rating55.8 US tons
Inventory rating32.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length144 ft (43.9 m)
Longest span57 ft (17.5 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic113 (2024)
Projected traffic118 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 Thornapple RD over Thornapple River built?

It was built in 1976, making it 49 years old in 2025.

What condition is Lrd Thornapple RD over Thornapple River 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 April 2024.

How much traffic does Lrd Thornapple RD over Thornapple River carry?

About 113 vehicles per day (2024 count).

How long is Lrd Thornapple RD over Thornapple River?

The structure is 144 ft (43.9 m) long with a longest span of 57 ft (17.5 m) and a deck 26 ft wide.

Who owns Lrd Thornapple RD over Thornapple River?

It is owned by the Town or Township Highway Agency.