US Bridges

Old San Antonio RD over Slaughter Creek

Fair

Travis County, Texas · 0.20 MI W of IH 35 · Structure no. 142270B05700001

Built
1915
110 years old, rebuilt 1970
Condition
Fair
inspected February 2024
Type
Slab
Concrete Continuous
Length
47 ft
3 main spans
Daily traffic
1,903
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Old San Antonio RD over Slaughter Creek is a concrete continuous slab carrying Old San Antonio RD over Slaughter Creek in Travis County, Texas. It was built in 1915 and reconstructed in 1970, so it is 110 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 1,903 vehicles a day, projected to reach 2,400 by 2030. The structure is 47 ft (14.3 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesOld San Antonio RD
CrossesSlaughter Creek
Location0.20 MI W of IH 35
RouteCity Street 301
CountyTravis County
StateTexas
Coordinates30.15352, -97.79529
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length47 ft (14.3 m)
Longest span15 ft (4.6 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,903 (2020)
Projected traffic2,400 by 2030
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$342,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Old San Antonio RD over Slaughter Creek built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 1970.

What condition is Old San Antonio RD 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 February 2024.

How much traffic does Old San Antonio RD over Slaughter Creek carry?

About 1,903 vehicles per day (2020 count).

How long is Old San Antonio RD over Slaughter Creek?

The structure is 47 ft (14.3 m) long with a longest span of 15 ft (4.6 m) and a deck 26 ft wide.

Who owns Old San Antonio RD over Slaughter Creek?

It is owned by the City or Municipal Highway Agency.