US Bridges

Austin ST over IH 35 SB Conn 7

Good

Bexar County, Texas · IH 35 & IH 37 Interchange · Structure no. 150150001710292

Built
1972
53 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete Continuous
Length
150 ft
1 main span
Daily traffic
1,702
2022 count
Owner
State
State Highway Agency

About this bridge

Austin ST over IH 35 SB Conn 7 is a concrete continuous slab carrying Austin ST over IH 35 SB Conn 7 in Bexar County, Texas. It was built in 1972, so it is 53 years old, older 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 1,702 vehicles a day, roughly 3% of them trucks, projected to reach 309 by 2042. The structure is 150 ft (45.7 m) long and 50 ft wide.

CarriesAustin ST
CrossesIH 35 SB Conn 7
LocationIH 35 & IH 37 Interchange
RouteCity Street 1665
StateTexas
Coordinates29.43909, -98.47502
Functional classUrban Local

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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating24 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadH 20
Structure length150 ft (45.7 m)
Longest span60 ft (18.3 m)
Deck width50 ft (15.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,702 (2022)
Projected traffic309 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Austin ST over IH 35 SB Conn 7 built?

It was built in 1972, making it 53 years old in 2025.

What condition is Austin ST over IH 35 SB Conn 7 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 June 2024.

How much traffic does Austin ST over IH 35 SB Conn 7 carry?

About 1,702 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Austin ST over IH 35 SB Conn 7?

The structure is 150 ft (45.7 m) long with a longest span of 60 ft (18.3 m) and a deck 50 ft wide.

Who owns Austin ST over IH 35 SB Conn 7?

It is owned by the State Highway Agency.