US Bridges

IH 35 SB over Slaughter Creek

Fair

Travis County, Texas · 5.10 MI S of SH 71 · Structure no. 142270001601064

Built
1958
67 years old, rebuilt 1987
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
324 ft
7 main spans
Daily traffic
65,675
2023 count
Owner
State
State Highway Agency

About this bridge

IH 35 SB over Slaughter Creek is a steel continuous stringer/multi-beam or girder carrying IH 35 SB over Slaughter Creek in Travis County, Texas. It was built in 1958 and reconstructed in 1987, so it is 67 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 65,675 vehicles a day, roughly 11% of them trucks, projected to reach 80,240 by 2036. The structure is 324 ft (98.8 m) long and 71 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 35 SB
CrossesSlaughter Creek
Location5.10 MI S of SH 71
RouteInterstate 35
StateTexas
Coordinates30.15283, -97.79177
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating57 US tons
Inventory rating34 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length324 ft (98.8 m)
Longest span46 ft (14 m)
Deck width71 ft (21.5 m)
Roadway width67 ft (20.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65,675 (2023)
Projected traffic80,240 by 2036
Trucks11%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 Slaughter Creek built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1987.

What condition is IH 35 SB over Slaughter 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 November 2024.

How much traffic does IH 35 SB over Slaughter Creek carry?

About 65,675 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is IH 35 SB over Slaughter Creek?

The structure is 324 ft (98.8 m) long with a longest span of 46 ft (14 m) and a deck 71 ft wide.

Who owns IH 35 SB over Slaughter Creek?

It is owned by the State Highway Agency.