FM 580 over Slough
GoodLampasas County, Texas · 1.80 MI N of San Saba C/L · Structure no. 231410023115049
- Built
- 1953
- 72 years old
- Condition
- Good
- inspected January 2024
- Type
- Culvert
- Concrete
- Length
- 23 ft
- 4 main spans
- Daily traffic
- 373
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
FM 580 over Slough is a concrete culvert carrying FM 580 over Slough in Lampasas County, Texas. It was built in 1953, so it is 72 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 373 vehicles a day, roughly 18% of them trucks, projected to reach 431 by 2038. The structure is 23 ft (7 m) long and 27 ft wide. If it were closed, the detour would be 28 mi (45 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM 580 over Slough built?
It was built in 1953, making it 72 years old in 2025.
What condition is FM 580 over Slough 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 January 2024.
How much traffic does FM 580 over Slough carry?
About 373 vehicles per day (2020 count), of which roughly 18% are trucks.
How long is FM 580 over Slough?
The structure is 23 ft (7 m) long with a longest span of 5 ft (1.5 m) and a deck 27 ft wide.
Who owns FM 580 over Slough?
It is owned by the State Highway Agency.