US Bridges

US 281 over Olds Slough

Fair

Live Oak County, Texas · 0.3 MI N of SH 72 · Structure no. 161490025401001

Built
1956
69 years old, rebuilt 1995
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
360 ft
12 main spans
Daily traffic
14,437
2020 count
Owner
State
State Highway Agency

About this bridge

US 281 over Olds Slough is a concrete stringer/multi-beam or girder carrying US 281 over Olds Slough in Live Oak County, Texas. It was built in 1956 and reconstructed in 1995, so it is 69 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 14,437 vehicles a day, roughly 34% of them trucks, projected to reach 31,680 by 2033. The structure is 360 ft (109.7 m) long and 76 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

CarriesUS 281
CrossesOlds Slough
Location0.3 MI N of SH 72
RouteU.S. Route 281
StateTexas
Coordinates28.46557, -98.18094
Functional classRural Principal Arterial - Other

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans12
Design loadH 20
Structure length360 ft (109.7 m)
Longest span30 ft (9.1 m)
Deck width76 ft (23.1 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,437 (2020)
Projected traffic31,680 by 2033
Trucks34%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemYes

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 US 281 over Olds Slough built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1995.

What condition is US 281 over Olds Slough 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 February 2024.

How much traffic does US 281 over Olds Slough carry?

About 14,437 vehicles per day (2020 count), of which roughly 34% are trucks.

How long is US 281 over Olds Slough?

The structure is 360 ft (109.7 m) long with a longest span of 30 ft (9.1 m) and a deck 76 ft wide.

Who owns US 281 over Olds Slough?

It is owned by the State Highway Agency.