Know What’s Below. Call 811 Before You Dig.
Excavation damage is one of the most common causes of natural gas pipeline incidents. Whether you’re planning a major construction project or a simple landscaping job, calling 811 ensures underground utility lines are marked before you dig—helping to protect people, property, and essential services.
One free call helps prevent injuries, service disruptions, and damage to underground utilities.
How Sunshine 811 Works
How Sunshine 811 Works
- Call 811 Before You Dig
- Contact 811 at least a few days before starting any excavation.
- Check for Utility Line Markers
- Underground utility lines are marked so you know what’s below.
- Submit a Florida 811 Ticket
- Submit a Florida 811 ticket at least two full business days before you plan to dig. Tickets are required for any excavation, such as planting trees, installing fences, or building decks, to avoid damaging underground utilities.
How to Identify Natural Gas Lines & Equipment
How to Identify Natural Gas Lines & Equipment
Natural gas lines and equipment are often marked for visibility and safety. Know what to look for to help you quickly recognize and avoid accidental damage.
Yellow gas line flags
Pavement markings (e.g. “H.P. GAS”)
Vent tubes
Test stations
Residential gas meters
Industrial gas meters
Utility Flag Color Guide
Utility Flag Color Guide
| Red | Electric power lines, cables, conduit, and lighting cables |
| Yellow | Gas, oil, steam, petroleum, or gaseous materials |
| Orange | Communications, alarm or signal lines, cables, or conduit |
| Blue | Potable water lines |
| Purple | Reclaimed water, irrigation, and slurry lines |
| Green | Sewer lines |
| White | Proposed excavation |
| Pink | Temporary survey markings |
