US Bridges

Lp 1 NB over Walnut Crk/Rr/Park Bend

Fair

Travis County, Texas · 2.9 MI N of US 183 · Structure no. 142270313601067

Built
1989
36 years old, rebuilt 2016
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
910 ft
7 main spans
Daily traffic
74,907
2019 count
Owner
State
State Highway Agency

About this bridge

Lp 1 NB over Walnut Crk/Rr/Park Bend is a prestressed concrete stringer/multi-beam or girder carrying Lp 1 NB over Walnut Crk/Rr/Park Bend in Travis County, Texas. It was built in 1989 and reconstructed in 2016, so it is 36 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 74,907 vehicles a day, roughly 1% of them trucks, projected to reach 80,950 by 2033. The structure is 910 ft (277.4 m) long and 86 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesLp 1 NB
CrossesWalnut Crk/Rr/Park Bend
Location2.9 MI N of US 183
RouteState Highway 1
CountyTravis County
StateTexas
Coordinates30.41036, -97.71062
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
Deck7 GoodSome minor problems.
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than 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 spans7 (+3 approach)
Design loadHS 20
Structure length910 ft (277.4 m)
Longest span118 ft (36 m)
Deck width86 ft (26.2 m)
Roadway width83 ft (25.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic74,907 (2019)
Projected traffic80,950 by 2033
Trucks1%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 NB over Walnut Crk/Rr/Park Bend built?

It was built in 1989, making it 36 years old in 2025. It was reconstructed in 2016.

What condition is Lp 1 NB over Walnut Crk/Rr/Park Bend 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 NB over Walnut Crk/Rr/Park Bend carry?

About 74,907 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Lp 1 NB over Walnut Crk/Rr/Park Bend?

The structure is 910 ft (277.4 m) long with a longest span of 118 ft (36 m) and a deck 86 ft wide.

Who owns Lp 1 NB over Walnut Crk/Rr/Park Bend?

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