US Bridges

Lrd Sinsiniwa RD over Sinsiniwa River

Fair

Grant County, Wisconsin · 2.4M W JCT Sth 80 · Structure no. B22004800000000

Built
1961
64 years old
Condition
Fair
inspected August 2023
Type
Girder and Floorbeam System
Steel
Length
77 ft
1 main span
Daily traffic
91
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd Sinsiniwa RD over Sinsiniwa River is a steel girder and floorbeam system carrying Lrd Sinsiniwa RD over Sinsiniwa River in Grant County, Wisconsin. It was built in 1961, so it is 64 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 6 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 91 vehicles a day, projected to reach 100 by 2042. The structure is 77 ft (23.4 m) long and 25 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesLrd Sinsiniwa RD
CrossesSinsiniwa River
Location2.4M W JCT Sth 80
RouteCity Street 0
CountyGrant County
StateWisconsin
Coordinates42.50814, -90.48067
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating25 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length77 ft (23.4 m)
Longest span69 ft (21 m)
Deck width25 ft (7.6 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic91 (2022)
Projected traffic100 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Sinsiniwa RD over Sinsiniwa River built?

It was built in 1961, making it 64 years old in 2025.

What condition is Lrd Sinsiniwa RD over Sinsiniwa 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 August 2023.

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

About 91 vehicles per day (2022 count).

How long is Lrd Sinsiniwa RD over Sinsiniwa River?

The structure is 77 ft (23.4 m) long with a longest span of 69 ft (21 m) and a deck 25 ft wide.

Who owns Lrd Sinsiniwa RD over Sinsiniwa River?

It is owned by the Town or Township Highway Agency.