US Bridges

IH 35 SB UP Level over Houston ST to El Paso ST

Fair

Bexar County, Texas · 0.20 MI S of W Martin ST · Structure no. 150150001710337

Built
1989
36 years old
Condition
Fair
inspected May 2024
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
4,158 ft
42 main spans
Daily traffic
169,296
2022 count
Owner
State
State Highway Agency

About this bridge

IH 35 SB UP Level over Houston ST to El Paso ST is a prestressed concrete continuous segmental box girder carrying IH 35 SB UP Level over Houston ST to El Paso ST in Bexar County, Texas. It was built in 1989, so it is 36 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 5 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 169,296 vehicles a day, roughly 9% of them trucks, projected to reach 237,014 by 2042. The structure is 4,158 ft (1,267.4 m) long and 81 ft wide.

Location

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CarriesIH 35 SB UP Level
CrossesHouston ST to El Paso ST
Location0.20 MI S of W Martin ST
RouteInterstate 35
CountyBexar County
StateTexas
Coordinates29.42628, -98.50127
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans42
Design loadHS 20
Structure length4,158 ft (1,267.4 m)
Longest span110 ft (33.5 m)
Deck width81 ft (24.7 m)
Roadway width70 ft (21.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic169,296 (2022)
Projected traffic237,014 by 2042
Trucks9%
Lanes on structure4
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$4.8 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 35 SB UP Level over Houston ST to El Paso ST built?

It was built in 1989, making it 36 years old in 2025.

What condition is IH 35 SB UP Level over Houston ST to El Paso ST 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 May 2024.

How much traffic does IH 35 SB UP Level over Houston ST to El Paso ST carry?

About 169,296 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is IH 35 SB UP Level over Houston ST to El Paso ST?

The structure is 4,158 ft (1,267.4 m) long with a longest span of 110 ft (33.5 m) and a deck 81 ft wide.

Who owns IH 35 SB UP Level over Houston ST to El Paso ST?

It is owned by the State Highway Agency.