US Bridges

Lrd Platte RD over Platte River

Fair

Grant County, Wisconsin · 1.3M N JCT Cth B · Structure no. P22031200000000

Built
1935
90 years old
Condition
Fair
inspected April 2023
Type
Truss - Thru
Steel
Length
103 ft
1 main span
Daily traffic
51
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd Platte RD over Platte River is a steel truss - thru carrying Lrd Platte RD over Platte River in Grant County, Wisconsin. It was built in 1935, so it is 90 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 51 vehicles a day, projected to reach 56 by 2042. The structure is 103 ft (31.4 m) long and 23 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesLrd Platte RD
CrossesPlatte River
Location1.3M N JCT Cth B
RouteCity Street 0
CountyGrant County
StateWisconsin
Coordinates42.749, -90.62158
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, 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 inspectionApril 2023
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 alignment6: Equal to present minimum criteria
Operating rating54 US tons
Inventory rating37.5 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length103 ft (31.4 m)
Longest span100 ft (30.5 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51 (2022)
Projected traffic56 by 2042
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 Platte RD over Platte River built?

It was built in 1935, making it 90 years old in 2025.

What condition is Lrd Platte RD over Platte 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 2023.

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

About 51 vehicles per day (2022 count).

How long is Lrd Platte RD over Platte River?

The structure is 103 ft (31.4 m) long with a longest span of 100 ft (30.5 m) and a deck 23 ft wide.

Who owns Lrd Platte RD over Platte River?

It is owned by the Town or Township Highway Agency.