FM 518 over Drainage Ditch
GoodGalveston County, Texas · 0.20 MI E of IH 45 · Structure no. 120850097603023
- Built
- 1975
- 50 years old
- Condition
- Good
- inspected September 2024
- Type
- Slab
- Concrete
- Length
- 60 ft
- 3 main spans
- Daily traffic
- 32,790
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
FM 518 over Drainage Ditch is a concrete slab carrying FM 518 over Drainage Ditch in Galveston County, Texas. It was built in 1975, so it is 50 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 32,790 vehicles a day, roughly 2% of them trucks, projected to reach 30,900 by 2033. The structure is 60 ft (18.3 m) long and 78 ft wide. If it were closed, the detour would be 5 mi (8 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM 518 over Drainage Ditch built?
It was built in 1975, making it 50 years old in 2025.
What condition is FM 518 over Drainage Ditch 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 Drainage Ditch carry?
About 32,790 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is FM 518 over Drainage Ditch?
The structure is 60 ft (18.3 m) long with a longest span of 20 ft (6.1 m) and a deck 78 ft wide.
Who owns FM 518 over Drainage Ditch?
It is owned by the State Highway Agency.