US Bridges

IH 35 SB over SH 71

Fair

Travis County, Texas · IH 35/SH 71 Interchange · Structure no. 142270001513454

Built
2004
21 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
840 ft
7 main spans
Daily traffic
69,775
2019 count
Owner
State
State Highway Agency

About this bridge

IH 35 SB over SH 71 is a prestressed concrete stringer/multi-beam or girder carrying IH 35 SB over SH 71 in Travis County, Texas. It was built in 2004, so it is 21 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 69,775 vehicles a day, roughly 15% of them trucks, projected to reach 77,320 by 2036. The structure is 840 ft (256 m) long and 89 ft wide.

Location

Open in Google Maps
CarriesIH 35 SB
CrossesSH 71
LocationIH 35/SH 71 Interchange
RouteInterstate 35
CountyTravis County
StateTexas
Coordinates30.21664, -97.75139
Functional classUrban Principal Arterial - Interstate

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.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
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
Design loadHS 20
Structure length840 ft (256 m)
Longest span124 ft (37.8 m)
Deck width89 ft (27 m)
Roadway width60 ft (18.4 m)
Vertical clearance over deck18 ft (5.5 m)

Traffic and service

Average daily traffic69,775 (2019)
Projected traffic77,320 by 2036
Trucks15%
Lanes on structure4
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway and railroad
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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 IH 35 SB over SH 71 built?

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

What condition is IH 35 SB over SH 71 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 August 2023.

How much traffic does IH 35 SB over SH 71 carry?

About 69,775 vehicles per day (2019 count), of which roughly 15% are trucks.

How long is IH 35 SB over SH 71?

The structure is 840 ft (256 m) long with a longest span of 124 ft (37.8 m) and a deck 89 ft wide.

Who owns IH 35 SB over SH 71?

It is owned by the State Highway Agency.