US Bridges

Lp 1 SB Ramp over Walnut Ck/Rr/Waters Park

Fair

Travis County, Texas · 2.90 MI N of US 183 · Structure no. 142270313601153

Built
2008
17 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
880 ft
8 main spans
Daily traffic
8,317
2019 count
Owner
State
State Highway Agency

About this bridge

Lp 1 SB Ramp over Walnut Ck/Rr/Waters Park is a prestressed concrete stringer/multi-beam or girder carrying Lp 1 SB Ramp over Walnut Ck/Rr/Waters Park in Travis County, Texas. It was built in 2008, so it is 17 years old, younger than the Texas average of 44.4 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 8,317 vehicles a day, roughly 1% of them trucks, projected to reach 16,190 by 2036. The structure is 880 ft (268.2 m) long and 48 ft wide.

Location

Open in Google Maps
CarriesLp 1 SB Ramp
CrossesWalnut Ck/Rr/Waters Park
Location2.90 MI N of US 183
RouteState Highway 1
CountyTravis County
StateTexas
Coordinates30.41068, -97.71107
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length880 ft (268.2 m)
Longest span126 ft (38.4 m)
Deck width48 ft (14.6 m)
Roadway width45 ft (13.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,317 (2019)
Projected traffic16,190 by 2036
Trucks1%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byLocal Toll Authority
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 Lp 1 SB Ramp over Walnut Ck/Rr/Waters Park built?

It was built in 2008, making it 17 years old in 2025.

What condition is Lp 1 SB Ramp over Walnut Ck/Rr/Waters Park 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 September 2023.

How much traffic does Lp 1 SB Ramp over Walnut Ck/Rr/Waters Park carry?

About 8,317 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Lp 1 SB Ramp over Walnut Ck/Rr/Waters Park?

The structure is 880 ft (268.2 m) long with a longest span of 126 ft (38.4 m) and a deck 48 ft wide.

Who owns Lp 1 SB Ramp over Walnut Ck/Rr/Waters Park?

It is owned by the State Highway Agency and maintained by the Local Toll Authority.