US Bridges

Southwest Pkwy EB over Barton Creek

Good

Travis County, Texas · 0.90 MI E of SH 71 · Structure no. 142270AA0237001

Built
1988
37 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
442 ft
3 main spans
Daily traffic
13,666
2023 count
Owner
County
County Highway Agency

About this bridge

Southwest Pkwy EB over Barton Creek is a prestressed concrete stringer/multi-beam or girder carrying Southwest Pkwy EB over Barton Creek in Travis County, Texas. It was built in 1988, so it is 37 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 13,666 vehicles a day, projected to reach 900 by 2027. The structure is 442 ft (134.7 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSouthwest Pkwy EB
CrossesBarton Creek
Location0.90 MI E of SH 71
RouteCounty Highway 323
StateTexas
Coordinates30.27944, -97.90102
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 within limits of footing or piles
Structural evaluation6: Equal to 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 rating36 US tons
Inventory rating27 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3 (+1 approach)
Design loadUnknown
Structure length442 ft (134.7 m)
Longest span119 ft (36.2 m)
Deck width52 ft (15.9 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,666 (2023)
Projected traffic900 by 2027
Trucks0%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Southwest Pkwy EB over Barton Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Southwest Pkwy EB over Barton Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does Southwest Pkwy EB over Barton Creek carry?

About 13,666 vehicles per day (2023 count).

How long is Southwest Pkwy EB over Barton Creek?

The structure is 442 ft (134.7 m) long with a longest span of 119 ft (36.2 m) and a deck 52 ft wide.

Who owns Southwest Pkwy EB over Barton Creek?

It is owned by the County Highway Agency.