FM 518 over Robinson Bayou
GoodGalveston County, Texas · 0.10 MI SW of FM 270 · Structure no. 120850097603025
- Built
- 1984
- 41 years old
- Condition
- Good
- inspected September 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 120 ft
- 3 main spans
- Daily traffic
- 22,920
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
FM 518 over Robinson Bayou is a prestressed concrete box beam or girders - multiple carrying FM 518 over Robinson Bayou in Galveston County, Texas. It was built in 1984, so it is 41 years old, younger 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 22,920 vehicles a day, roughly 5% of them trucks, projected to reach 30,900 by 2033. The structure is 120 ft (36.6 m) long and 76 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM 518 over Robinson Bayou built?
It was built in 1984, making it 41 years old in 2025.
What condition is FM 518 over Robinson Bayou 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 September 2024.
How much traffic does FM 518 over Robinson Bayou carry?
About 22,920 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is FM 518 over Robinson Bayou?
The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 76 ft wide.
Who owns FM 518 over Robinson Bayou?
It is owned by the State Highway Agency.