Custom Sewer Line Flat Utility Markers
Clearly mark underground sewer, drain, or stormwater lines to avoid costly excavation errors. This marker can be customized with your preferred text, logo, and contact information.
Utility Flat Marker Preview
The image in the builder is for preview purposes only, your design will be printed on a utility flat marker as shown below. Click on image below to see full spec details.
Other Utility flat Marker Variants:
Clicking on any of the images below takes you to that respective custom builder.
Need to design a custom sign but don’t see a template you like? Email us directly at [email protected].
Product Information
Flat Utility Markers
Offered in 66" or 72" sizes
Material: Fiberglass Flat Marker with an Outdoor Durable Vinyl Label
Flat-surface markers used along buried utility routes or near roadways and access points for consistent visibility. Each marker is equipped with a vinyl label that’s overlaminated for superior defense against fading, moisture, and wear—so your warning message stays clear over time.
Available Types:
- Electric Utility (Red) – Marks buried electrical cables and power infrastructure.
- Fiber & Communication (Orange) – Identifies underground fiber optic, phone, and cable lines.
- Gas, Oil, & Steam (Yellow) – Used to mark gas pipelines and pressurized fuel lines.
- Water Line (Blue) – Indicates potable water mains.
- Reclaimed Water (Purple) - Indicates reclaimed water, or recycled water, and irrigation systems.
- Sewer/Drainage (Green) – Highlights sewer, stormwater, or drainage infrastructure.
Customizable with: your message, emergency contact number, and company logo.
What are Utility Markers?
Utility markers are permanent posts or signs used to indicate the path of underground utility lines. Unlike temporary paint or flags, these durable markers remain visible throughout the project and long after, helping crews avoid dangerous or costly strikes. Each marker is color-coded according to the APWA standard to indicate the type of buried utility.
What Is 811?
811 is the national “Call Before You Dig” number. Before starting any digging project, calling 811 helps utility companies locate and mark underground lines to prevent accidents, service outages, and costly repairs.
Why call 811? Because hitting buried utilities can have serious consequences. It helps prevent:- Damage to underground facilities – Avoid breaking gas pipelines, water mains, communication cables, etc.
- Service outages – Prevent knocking out power or communications for you and your neighbors.
- Costly repairs or legal liabilities – A ruptured line can lead to expensive fixes, fines, and lawsuits.
- Serious injuries or fatalities – Striking a gas or electric line risks explosions or electrocution, endangering lives.
APWA Utility Color Code
Uniform Color Code (APWA Standard)
To avoid confusion, the American Public Works Association (APWA) developed a Uniform Color Code used nationwide for utility markings. This standardized color system means that each color corresponds to a specific type of utility. Whether markings are paint, flags, or permanent posts, the colors stay consistent so everyone knows what buried lines are present.
Source: APWA
