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3M™ 7900 Series
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3M™ Warning Tape 7900 Series
CONNECTICUT SPECIFICATIONS & Guidelines
Connecticut Department of Energy & Environmental Protection
Public Utilities Regulatory Authority (PURA)
Responsibilities of Public Utilities
"(f) For all new underground facilities installed after January1, 1989, and for all repairs, replacements or modifications involving an exposure of existing underground facilities at least 100 feet longitudinally after January 1, 1989, of which the utility has knowledge of such exposure, the utility shall, where practicable, install a warning tape located above the facility, and keep appropriate records thereof. The minimum separation between the facility and the warning tape shall be 12 inches unless the depth, other underground facilities or other engineering considerations make the minimum separation unfeasible. The warning tape shall be durable, designed to withstand extended underground exposure, be of the color assigned to the type of facility for surface markings in Section 16-345-5(h) and durable imprinted with an appropriate warning or message."
State of Connecticut Department of Transportation
CTDOT Standard Specifications for Roads, Bridges, Facilities and Incidental Construction, 2016
Markings for Underground Facilities
“In conformance with Section 16-345 through 16-359 of the Regulations of the PURA, the Contractor is responsible for notifying “Call Before You Dig” prior to commencing any excavation, including milling, reclamation or trenching; and the Contractor shall install a warning tape located a minimum of 12 in above all conduits, wires, cables, utility pipes, drainage pipes, underdrains, or other facility, unless the excavation’s depth, other underground facilities, or other engineering considerations make this minimum separation unfeasible. The warning tape shall be of durable impervious material, designed to withstand extended underground exposure without material deterioration or fading of color. The tape shall be of the color assigned to the type of facility for surface markings and shall be durably imprinted with an appropriate warning message. The tape shall also comply with the specific requirements of the utility that owns the facility.
All tapes, unless otherwise directed by the specific utility, shall be detectable to a depth of at least 3 ft with a commercial radio-type metal locator.
Assigned colors are:
Green - Storm and sanitary sewers and drainage systems, including force mains and other non-hazardous materials
Blue – Water
Orange - Communication lines or cables, including, but not limited to, those used in, or in connection with, telephone, telegraph, fire signals, cable television, civil defense, data systems, electronic controls and other instrumentation
Red - Electrical power lines, electrical power conduits and other electrical power facilities, traffic signals and appurtenances and illumination facilities
Yellow - Gas, oil petroleum products, steam, compressed air, compressed gases and all other hazardous material except water
Brown – Other
Purple - Radioactive materials
Payment for warning tapes shall be included in the bid price for the pay item of the specific facility for which the tape is used.”
Call Before You Dig
Connecticut - Call Before You Dig
811 or 800-922-4455
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