US Bridges

IH 35 SB over Elm Creek Relief

Fair

Bexar County, Texas · 2.60 MI SW of Lp 1604 · Structure no. 150150001703102

Built
1955
70 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
54 ft
5 main spans
Daily traffic
52,065
2022 count
Owner
State
State Highway Agency

About this bridge

IH 35 SB over Elm Creek Relief is a concrete culvert carrying IH 35 SB over Elm Creek Relief in Bexar County, Texas. It was built in 1955, so it is 70 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 52,065 vehicles a day, roughly 34% of them trucks, projected to reach 72,891 by 2042. The structure is 54 ft (16.5 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 35 SB
CrossesElm Creek Relief
Location2.60 MI SW of Lp 1604
RouteInterstate 35
StateTexas
Coordinates29.2632, -98.70571
Functional classRural 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span10 ft (3 m)
Deck width39 ft (12 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic52,065 (2022)
Projected traffic72,891 by 2042
Trucks34%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed1.2 mi (2 km)
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 SB over Elm Creek Relief built?

It was built in 1955, making it 70 years old in 2025.

What condition is IH 35 SB over Elm Creek Relief 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 over Elm Creek Relief carry?

About 52,065 vehicles per day (2022 count), of which roughly 34% are trucks.

How long is IH 35 SB over Elm Creek Relief?

The structure is 54 ft (16.5 m) long with a longest span of 10 ft (3 m) and a deck 39 ft wide.

Who owns IH 35 SB over Elm Creek Relief?

It is owned by the State Highway Agency.