US Bridges

IH 35 over IH 10 WB Conn / Drain

Fair

Bexar County, Texas · Downtown Y I/C · Structure no. 150150007212293

Built
1954
71 years old, rebuilt 1994
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,671 ft
18 main spans
Daily traffic
139,713
2023 count
Owner
State
State Highway Agency

About this bridge

IH 35 over IH 10 WB Conn / Drain is a steel continuous stringer/multi-beam or girder carrying IH 35 over IH 10 WB Conn / Drain in Bexar County, Texas. It was built in 1954 and reconstructed in 1994, so it is 71 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 139,713 vehicles a day, roughly 11% of them trucks, projected to reach 195,598 by 2042. The structure is 1,671 ft (509.3 m) long and 88 ft wide.

CarriesIH 35
CrossesIH 10 WB Conn / Drain
LocationDowntown Y I/C
RouteInterstate 35
StateTexas
Coordinates29.43386, -98.49808
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37 US tons
Inventory rating22 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans18 (+10 approach)
Design loadOther
Structure length1,671 ft (509.3 m)
Longest span87 ft (26.5 m)
Deck width88 ft (26.9 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deck21 ft (6.3 m)

Traffic and service

Average daily traffic139,713 (2023)
Projected traffic195,598 by 2042
Trucks11%
Lanes on structure4
Traffic directionTwo-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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 35 over IH 10 WB Conn / Drain built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1994.

What condition is IH 35 over IH 10 WB Conn / Drain 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 July 2024.

How much traffic does IH 35 over IH 10 WB Conn / Drain carry?

About 139,713 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is IH 35 over IH 10 WB Conn / Drain?

The structure is 1,671 ft (509.3 m) long with a longest span of 87 ft (26.5 m) and a deck 88 ft wide.

Who owns IH 35 over IH 10 WB Conn / Drain?

It is owned by the State Highway Agency.