US Bridges

Airport SB Conn. over US 281

Fair

Bexar County, Texas · 0.4 MI S of IH 410 · Structure no. 150150007308124

Built
1976
49 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
320 ft
2 main spans
Daily traffic
18,097
2023 count
Owner
State
State Highway Agency

About this bridge

Airport SB Conn. over US 281 is a steel continuous stringer/multi-beam or girder carrying Airport SB Conn. over US 281 in Bexar County, Texas. It was built in 1976, so it is 49 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 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 18,097 vehicles a day, roughly 3% of them trucks, projected to reach 25,336 by 2042. The structure is 320 ft (97.5 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesAirport SB Conn.
CrossesUS 281
Location0.4 MI S of IH 410
RouteCity Street 0
CountyBexar County
StateTexas
Coordinates29.516, -98.47775
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 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 alignment6: Equal to present minimum criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length320 ft (97.5 m)
Longest span100 ft (30.5 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deck21 ft (6.4 m)

Traffic and service

Average daily traffic18,097 (2023)
Projected traffic25,336 by 2042
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 Airport SB Conn. over US 281 built?

It was built in 1976, making it 49 years old in 2025.

What condition is Airport SB Conn. over US 281 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 Airport SB Conn. over US 281 carry?

About 18,097 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Airport SB Conn. over US 281?

The structure is 320 ft (97.5 m) long with a longest span of 100 ft (30.5 m) and a deck 38 ft wide.

Who owns Airport SB Conn. over US 281?

It is owned by the State Highway Agency.