US Bridges

IH 37 SB over Hackberry ST

Fair

Bexar County, Texas · 0.60 MI S of IH 10 · Structure no. 150150007308045

Built
1969
56 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
290 ft
4 main spans
Daily traffic
69,813
2019 count
Owner
State
State Highway Agency

About this bridge

IH 37 SB over Hackberry ST is a steel continuous stringer/multi-beam or girder carrying IH 37 SB over Hackberry ST in Bexar County, Texas. It was built in 1969, so it is 56 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 69,813 vehicles a day, roughly 3% of them trucks, projected to reach 88,050 by 2033. The structure is 290 ft (88.4 m) long and 78 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIH 37 SB
CrossesHackberry ST
Location0.60 MI S of IH 10
RouteInterstate 37
CountyBexar County
StateTexas
Coordinates29.38754, -98.47349
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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length290 ft (88.4 m)
Longest span80 ft (24.4 m)
Deck width78 ft (23.9 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic69,813 (2019)
Projected traffic88,050 by 2033
Trucks3%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 37 SB over Hackberry ST built?

It was built in 1969, making it 56 years old in 2025.

What condition is IH 37 SB over Hackberry 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 August 2024.

How much traffic does IH 37 SB over Hackberry ST carry?

About 69,813 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is IH 37 SB over Hackberry ST?

The structure is 290 ft (88.4 m) long with a longest span of 80 ft (24.4 m) and a deck 78 ft wide.

Who owns IH 37 SB over Hackberry ST?

It is owned by the State Highway Agency.