US Bridges

IH 35 Nbml over Southcross Blvd

Good

Bexar County, Texas · 1.7 MI S of US 90 · Structure no. 150150001709128

Built
1960
65 years old, rebuilt 2008
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
521 ft
4 main spans
Daily traffic
78,838
2022 count
Owner
State
State Highway Agency

About this bridge

IH 35 Nbml over Southcross Blvd is a steel continuous stringer/multi-beam or girder carrying IH 35 Nbml over Southcross Blvd in Bexar County, Texas. It was built in 1960 and reconstructed in 2008, so it is 65 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 78,838 vehicles a day, roughly 21% of them trucks, projected to reach 96,182 by 2042. The structure is 521 ft (158.8 m) long and 58 ft wide.

CarriesIH 35 Nbml
CrossesSouthcross Blvd
Location1.7 MI S of US 90
RouteInterstate 35
StateTexas
Coordinates29.36829, -98.51825
Functional classUrban Principal Arterial - Interstate

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 evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4 (+4 approach)
Design loadHS 20
Structure length521 ft (158.8 m)
Longest span80 ft (24.4 m)
Deck width58 ft (17.7 m)
Roadway width55 ft (16.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78,838 (2022)
Projected traffic96,182 by 2042
Trucks21%
Lanes on structure3
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$49,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 35 Nbml over Southcross Blvd built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2008.

What condition is IH 35 Nbml over Southcross Blvd 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 IH 35 Nbml over Southcross Blvd carry?

About 78,838 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is IH 35 Nbml over Southcross Blvd?

The structure is 521 ft (158.8 m) long with a longest span of 80 ft (24.4 m) and a deck 58 ft wide.

Who owns IH 35 Nbml over Southcross Blvd?

It is owned by the State Highway Agency.