US Bridges

IH 35 Sbml over Zarzamora Blvd & UPRR

Fair

Bexar County, Texas · 0.65 MI S of Lp 13 · Structure no. 150150001709136

Built
1960
65 years old, rebuilt 1989
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,014 ft
11 main spans
Daily traffic
66,764
2022 count
Owner
State
State Highway Agency

About this bridge

IH 35 Sbml over Zarzamora Blvd & UPRR is a prestressed concrete stringer/multi-beam or girder carrying IH 35 Sbml over Zarzamora Blvd & UPRR in Bexar County, Texas. It was built in 1960 and reconstructed in 1989, 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 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 66,764 vehicles a day, roughly 23% of them trucks, projected to reach 80,117 by 2042. The structure is 1,014 ft (309.1 m) long and 63 ft wide.

Location

Open in Google Maps
CarriesIH 35 Sbml
CrossesZarzamora Blvd & UPRR
Location0.65 MI S of Lp 13
RouteInterstate 35
CountyBexar County
StateTexas
Coordinates29.35103, -98.53327
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans11 (+5 approach)
Design loadHS 20
Structure length1,014 ft (309.1 m)
Longest span80 ft (24.4 m)
Deck width63 ft (19.1 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic66,764 (2022)
Projected traffic80,117 by 2042
Trucks23%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 35 Sbml over Zarzamora Blvd & UPRR built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1989.

What condition is IH 35 Sbml over Zarzamora Blvd & UPRR 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 June 2024.

How much traffic does IH 35 Sbml over Zarzamora Blvd & UPRR carry?

About 66,764 vehicles per day (2022 count), of which roughly 23% are trucks.

How long is IH 35 Sbml over Zarzamora Blvd & UPRR?

The structure is 1,014 ft (309.1 m) long with a longest span of 80 ft (24.4 m) and a deck 63 ft wide.

Who owns IH 35 Sbml over Zarzamora Blvd & UPRR?

It is owned by the State Highway Agency.