US Bridges

Lrd Nakomis Ave (d over Black River Slough

Fair

La Crosse County, Wisconsin · 0.6M N JCT Cth B · Structure no. B32012100000000

Built
1987
38 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
500
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd Nakomis Ave (d over Black River Slough is a prestressed concrete box beam or girders - multiple carrying Lrd Nakomis Ave (d over Black River Slough in La Crosse County, Wisconsin. It was built in 1987, so it is 38 years old, younger 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 500 vehicles a day, projected to reach 501 by 2043. The structure is 55 ft (16.8 m) long and 40 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesLrd Nakomis Ave (d
CrossesBlack River Slough
Location0.6M N JCT Cth B
RouteCity Street 0
Coordinates43.84997, -91.25522
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.2 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span53 ft (16.2 m)
Deck width40 ft (12.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2022)
Projected traffic501 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Nakomis Ave (d over Black River Slough built?

It was built in 1987, making it 38 years old in 2025.

What condition is Lrd Nakomis Ave (d over Black River Slough 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 March 2024.

How much traffic does Lrd Nakomis Ave (d over Black River Slough carry?

About 500 vehicles per day (2022 count).

How long is Lrd Nakomis Ave (d over Black River Slough?

The structure is 55 ft (16.8 m) long with a longest span of 53 ft (16.2 m) and a deck 40 ft wide.

Who owns Lrd Nakomis Ave (d over Black River Slough?

It is owned by the Town or Township Highway Agency.