US Bridges

IH35 S-N T/A over IH 35

Good

Travis County, Texas · 0.01 MI N of ST Johns Ave · Structure no. 142270001513717

Built
2019
6 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
251 ft
2 main spans
Daily traffic
1,000
2020 count
Owner
State
State Highway Agency

About this bridge

IH35 S-N T/A over IH 35 is a prestressed concrete box beam or girders - multiple carrying IH35 S-N T/A over IH 35 in Travis County, Texas. It was built in 2019, so it is 6 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 1,000 vehicles a day, roughly 5% of them trucks, projected to reach 1,300 by 2040. The structure is 251 ft (76.5 m) long and 36 ft wide.

Location

Open in Google Maps
CarriesIH35 S-N T/A
CrossesIH 35
Location0.01 MI N of ST Johns Ave
RouteInterstate 35
CountyTravis County
StateTexas
Coordinates30.33263, -97.70428
Functional classUrban Collector

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.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHL 93
Structure length251 ft (76.5 m)
Longest span89 ft (27.1 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2020)
Projected traffic1,300 by 2040
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate 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 IH35 S-N T/A over IH 35 built?

It was built in 2019, making it 6 years old in 2025.

What condition is IH35 S-N T/A over IH 35 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 August 2023.

How much traffic does IH35 S-N T/A over IH 35 carry?

About 1,000 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is IH35 S-N T/A over IH 35?

The structure is 251 ft (76.5 m) long with a longest span of 89 ft (27.1 m) and a deck 36 ft wide.

Who owns IH35 S-N T/A over IH 35?

It is owned by the State Highway Agency.