FM 509 over Arroyo Colorado
GoodCameron County, Texas · 0.55 MI S of FM 106 · Structure no. 210310236901001
- Built
- 1993
- 32 years old
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 320 ft
- 4 main spans
- Daily traffic
- 6,619
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
FM 509 over Arroyo Colorado is a prestressed concrete stringer/multi-beam or girder carrying FM 509 over Arroyo Colorado in Cameron County, Texas. It was built in 1993, so it is 32 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 6,619 vehicles a day, roughly 31% of them trucks, projected to reach 7,050 by 2033. The structure is 320 ft (97.5 m) long and 97 ft wide. If it were closed, the detour would be 1.9 mi (3 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 FM 509 over Arroyo Colorado built?
It was built in 1993, making it 32 years old in 2025.
What condition is FM 509 over Arroyo Colorado 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 March 2023.
How much traffic does FM 509 over Arroyo Colorado carry?
About 6,619 vehicles per day (2024 count), of which roughly 31% are trucks.
How long is FM 509 over Arroyo Colorado?
The structure is 320 ft (97.5 m) long with a longest span of 80 ft (24.4 m) and a deck 97 ft wide.
Who owns FM 509 over Arroyo Colorado?
It is owned by the State Highway Agency.