DomedPost® Utility Markers

  • 360° visibility
  • Embedded graphics with a lifetime guarantee against peeling, chipping, or fading
  • Able to withstand vehicle impact up to 45 mph and shotgun blasts from 50 feet
  • Custom lengths, colors and graphics available
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Clearly mark your underground utility with our DomedPost® Utility Markers. They combine rugged construction with high-visibility colors, conforming to DOT regulations. Choose from a wide range of post and cap color combinations.

Custom graphics are permanently molded into the product so they won’t fade, chip or peel. Anchor bar included with each marker.

Why Our DomedPost® Markers are Better

Premium Construction—outdoor durable marker posts are constructed of 100% prime high-density polyethylene. The UV-stabilized plastic prevents warping and is designed to withstand harsh outdoor environments for 20-20+ years.

Embedded Graphics—unlike surface or screen-printed marker posts, our custom graphics are permanently molded into the polyethylene material. Graphics won’t fade, chip or peel and cannot be scratched off, ensuring your underground equipment remains clearly marked. Permanent printing will even withstand harsh solvents used for removing graffiti.

Color Legends—high-visibility colors conform to US DOT regulations. Available in APWA uniform color codes (see chart below).


APWA Uniform Color Codes

ColorUnderground Utility Mains
OrangeTelecommunications Utility: alarm or signal lines, fiber optic cables, or conduit
RedElectric Utility: electrical power lines, cables or conduit, and lighting cables
YellowOil & Natural Gas Utilities: oil, steam, petroleum, or other gaseous or flammable material
BlueWater Utility: potable water
GreenWastewater Utility: sewage and drain lines
PinkTemporary Surveys
WhiteProposed excavation limits or route

Additional information

Model Number

WFS-ES-0003 Dome Post Utility Marker


Asset Marking, Gas, Harsh Environments, Oil, Outdoor Use, Safety & Compliance, Utility Labeling, Water Pipelines


Engineering Grade UV-Stable Polyethylene


6', 8'

Expected Outdoor Life

Guaranteed for life against fade, peel or chip

Temperature Service Range

-40°F to 185°F

Minimum Application Temperature

Any temperature as long as the ground is not frozen


Orange, Purple, Blue, Green, Red, Yellow

Water Resistance


Solvents Resistance


UV Resistance


Abrasion Resistance


Shelf Life

Completely Stable, Stored at 70F and 50% Relative Humidity