US Bridges

FM 78 over Youngs Creek

Good

Guadalupe County, Texas · 0.3 MI E of JCT FM 1044 · Structure no. 150950002510062

Built
1921
104 years old, rebuilt 1989
Condition
Good
inspected August 2024
Type
Slab
Concrete
Length
120 ft
6 main spans
Daily traffic
11,191
2023 count
Owner
State
State Highway Agency

About this bridge

FM 78 over Youngs Creek is a concrete slab carrying FM 78 over Youngs Creek in Guadalupe County, Texas. It was built in 1921 and reconstructed in 1989, so it is 104 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 11,191 vehicles a day, roughly 7% of them trucks, projected to reach 15,667 by 2042. The structure is 120 ft (36.6 m) long and 44 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

CarriesFM 78
CrossesYoungs Creek
Location0.3 MI E of JCT FM 1044
RouteState Highway 78
StateTexas
Coordinates29.58504, -98.08884
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating33 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadUnknown
Structure length120 ft (36.6 m)
Longest span20 ft (6.1 m)
Deck width44 ft (13.5 m)
Roadway width42 ft (12.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,191 (2023)
Projected traffic15,667 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 km)
TollOn a free road
National Highway SystemNo

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 FM 78 over Youngs Creek built?

It was built in 1921, making it 104 years old in 2025. It was reconstructed in 1989.

What condition is FM 78 over Youngs Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does FM 78 over Youngs Creek carry?

About 11,191 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is FM 78 over Youngs Creek?

The structure is 120 ft (36.6 m) long with a longest span of 20 ft (6.1 m) and a deck 44 ft wide.

Who owns FM 78 over Youngs Creek?

It is owned by the State Highway Agency.