US Bridges

Old San Antonio RD over School Creek

Fair

Gillespie County, Texas · 0.50 MI N of Kendall C/L · Structure no. 140870AA0177001

Built
1936
89 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
563
2020 count
Owner
County
County Highway Agency

About this bridge

Old San Antonio RD over School Creek is a concrete culvert carrying Old San Antonio RD over School Creek in Gillespie County, Texas. It was built in 1936, so it is 89 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 563 vehicles a day, roughly 3% of them trucks, projected to reach 45 by 2042. The structure is 23 ft (7 m) long and 29 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesOld San Antonio RD
CrossesSchool Creek
Location0.50 MI N of Kendall C/L
RouteCounty Highway 177
CountyGillespie County
StateTexas
Coordinates30.14518, -98.81889
Functional classRural 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 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 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 typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width29 ft (8.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic563 (2020)
Projected traffic45 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$64,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Old San Antonio RD over School Creek built?

It was built in 1936, making it 89 years old in 2025.

What condition is Old San Antonio RD over School 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 School Creek carry?

About 563 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Old San Antonio RD over School Creek?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 29 ft wide.

Who owns Old San Antonio RD over School Creek?

It is owned by the County Highway Agency.