Colorado Specifications & Guidelines

613.02 (d) Electrical Warning Tape

"Electrical warning tape shall consist of pre-manufactured non-adhesive polyethylene material that is unaffected by acids, alkalis, and other soil components. The tape shall be detectable. The color of the tape shall be red, and it shall be a minimum 3.5 mils thick and 6 inches wide. Its tensile strength shall be 1,750 psi lengthwise.

The electrical tape shall include the following identification printed in black letters continuously along the length of the tape: 'CAUTION BURIED ELECTRIC LINE BELOW'.

The identification note and color of tape shall conform to the requirements of the 'American Public Works Association (APWA) Uniform Color Codes (Red) – Electrical Power Lines, Cables, Conduit and Lighting Cables'"

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613.07 Conduit

" ... Red, detectable electrical warning tape shall be installed between 6 inches and 12 inches below finished grade for all underground trenched conduit runs. ..."

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623.10 (e) Plastic Pipe and Fittings, Detectable Underground Marking Tape

"The Contractor shall provide utility line marking tape for installation above all mainline pipe, which does not have control wire placed in the same trench."

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