US Bridges

Lrd Ramp W-4 over Ush 18/151

Fair

Dane County, Wisconsin · At Ush 18/151 · Structure no. B13057300000000

Built
2004
21 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
268 ft
2 main spans
Daily traffic
4,000
2022 count
Owner
State
State Highway Agency

About this bridge

Lrd Ramp W-4 over Ush 18/151 is a prestressed concrete continuous stringer/multi-beam or girder carrying Lrd Ramp W-4 over Ush 18/151 in Dane County, Wisconsin. It was built in 2004, so it is 21 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 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 4,000 vehicles a day, roughly 6% of them trucks, projected to reach 4,800 by 2043. The structure is 268 ft (81.8 m) long and 30 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesLrd Ramp W-4
CrossesUsh 18/151
LocationAt Ush 18/151
RouteCity Street 0
CountyDane County
StateWisconsin
Coordinates42.985, -89.55865
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.4 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length268 ft (81.8 m)
Longest span135 ft (41.1 m)
Deck width30 ft (9 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,000 (2022)
Projected traffic4,800 by 2043
Trucks6%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lrd Ramp W-4 over Ush 18/151 built?

It was built in 2004, making it 21 years old in 2025.

What condition is Lrd Ramp W-4 over Ush 18/151 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 November 2024.

How much traffic does Lrd Ramp W-4 over Ush 18/151 carry?

About 4,000 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Lrd Ramp W-4 over Ush 18/151?

The structure is 268 ft (81.8 m) long with a longest span of 135 ft (41.1 m) and a deck 30 ft wide.

Who owns Lrd Ramp W-4 over Ush 18/151?

It is owned by the State Highway Agency.