Warning Sewer Line Triangular Marker

Our Warning Sewer Line Triangular Marker notifies workers about buried sewer lines that must be avoided during digging. Its attention-grabbing shape is ideal for marking high-risk areas.

Triangular Utility Markers

Offered in 66" or 72" sizes

Material: High-Density Polyethylene (HDPE) Post with an Outdoor Durable Vinyl Label

Features:

• Three-sided design.
• Durable co-extruded thermoplastic construction
• Flexibility resists cracking in cold weather
• Overlaminated vinyl label resists UV, moisture, and wear
• Lightweight and easy to install
• Built for direct burying – Including an attached clip anchor
• Ideal for open fields and utility corridors

Three-sided, high-visibility utility markers designed for long-term use in utility corridors, open fields, and critical infrastructure zones. Each marker includes a weather-resistant vinyl label that is overlaminated to protect against UV rays, moisture, and abrasion—ensuring your warning message stays clear and legible for years.

Utility Triangular Marker Installation Instructions

APWA Utility Color Code

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

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