US Bridges

US 281 Mainlanes over Salado Creek

Fair

Bexar County, Texas · 0.80 MI S of Bitters RD · Structure no. 150150025304056

Built
1980
45 years old, rebuilt 2015
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
370 ft
6 main spans
Daily traffic
144,865
2020 count
Owner
State
State Highway Agency

About this bridge

US 281 Mainlanes over Salado Creek is a prestressed concrete stringer/multi-beam or girder carrying US 281 Mainlanes over Salado Creek in Bexar County, Texas. It was built in 1980 and reconstructed in 2015, so it is 45 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 144,865 vehicles a day, roughly 3% of them trucks, projected to reach 208,820 by 2033. The structure is 370 ft (112.8 m) long and 142 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 281 Mainlanes
CrossesSalado Creek
Location0.80 MI S of Bitters RD
RouteU.S. Route 281
StateTexas
Coordinates29.55438, -98.48593
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length370 ft (112.8 m)
Longest span70 ft (21.3 m)
Deck width142 ft (43.3 m)
Roadway width138 ft (42.1 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic144,865 (2020)
Projected traffic208,820 by 2033
Trucks3%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 281 Mainlanes over Salado Creek built?

It was built in 1980, making it 45 years old in 2025. It was reconstructed in 2015.

What condition is US 281 Mainlanes over Salado Creek 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 US 281 Mainlanes over Salado Creek carry?

About 144,865 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is US 281 Mainlanes over Salado Creek?

The structure is 370 ft (112.8 m) long with a longest span of 70 ft (21.3 m) and a deck 142 ft wide.

Who owns US 281 Mainlanes over Salado Creek?

It is owned by the State Highway Agency.