SH 80 over San Marcos River
GoodCaldwell County, Texas · 1.0 MI S of US 90 · Structure no. 140280028701014
- Built
- 1939
- 86 years old, rebuilt 1973
- Condition
- Good
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 579 ft
- 3 main spans
- Daily traffic
- 6,326
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SH 80 over San Marcos River is a prestressed concrete stringer/multi-beam or girder carrying SH 80 over San Marcos River in Caldwell County, Texas. It was built in 1939 and reconstructed in 1973, so it is 86 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 6,326 vehicles a day, roughly 29% of them trucks, projected to reach 8,856 by 2042. The structure is 579 ft (176.5 m) long and 54 ft wide. If it were closed, the detour would be 6.2 mi (10 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 80 over San Marcos River built?
It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1973.
What condition is SH 80 over San Marcos River 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 October 2024.
How much traffic does SH 80 over San Marcos River carry?
About 6,326 vehicles per day (2023 count), of which roughly 29% are trucks.
How long is SH 80 over San Marcos River?
The structure is 579 ft (176.5 m) long with a longest span of 77 ft (23.5 m) and a deck 54 ft wide.
Who owns SH 80 over San Marcos River?
It is owned by the State Highway Agency.