Conn. Agencies Regs. § 16-345-5

Current through December 27, 2024
Section 16-345-5 - Surface markings
(a) All surface markings, stakes and flags indicating the approximate location of an underground facility shall be made in accordance with this section.
(b) Surface markings shall consist of paint or equivalent material. The paint or material should have sufficient lasting properties so as to stand up to wear and tear of traffic; but should be sufficiently degradable so as not to be permanent, unless the marking is intended to be permanent.
(c) Stakes shall be made of wood or any other suitable material, and flags shall be a minimum of three inches on each side of the designated utility color in accordance with subsection (i) of this section, made of any suitable material.
(d) Surface markings for the identification of the approximate location of an underground utility facility shall be located, where possible, at the centerline of the underground facility.
(e) Where center-line marking is impractical, the approximate location of an underground utility facility may be indicated by means of offset surface markings.
(f) When marking via staking or flagging, stakes and flags shall be placed in an upright position directly above the facility and:
(1) Exposed above the ground a minimum of eighteen (18) inches for stakes and a minimum of twelve (12) inches for flags; and
(2) Inserted below ground to adequately support the stake or flag in the upright position.
(g) In areas where surface markings cannot be utilized, or in areas where the use of flags or stakes would be superior to surface markings, flagging or staking shall be employed for identification of the approximate location of an underground utility facility or for designating areas of proposed excavation or demolition. Flags and stakes shall normally be located above the center line of the underground facility. Flags or stakes shall not be used for offset locations unless surface marking or center line flagging or staking is inadequate or inappropriate:
(1) In areas of grass, dirt, or other non-durable surfaces, stakes or flags shall be used unless frost conditions prevent their installation.
(2) In active construction sites where there is continual movement of equipment and supplies, stakes and flags appropriate to withstand site conditions shall be used.
(h) Surface markings, flags or stakes shall be located at the outer limits of the designated area and at such appropriate intervals, not greater than twenty (20) feet between marks, as is necessary to clearly indicate the location and course of the underground facility.
(i) With the exception of normal traffic control markings, all markings on public streets, sidewalks and rights-of-way, and all surface marking, flagging and staking of public utility locations and designated areas of excavation or demolition shall be in accordance with, and shall not conflict with, the following uniform color code:
(1) Yellow-Gas, oil petroleum products, steam, compressed air, compressed gases and all other hazardous materials except water;
(2) Red-Electric power lines, electric power conduits and other electric power facilities;
(3) Orange-Communication lines or cables, including but not limited to telephone, telegraph, fire signals, cable television, civil defense, data systems, electronic controls and other instrumentation;
(4) Blue-Water;
(5) Green-Storm and sanitary sewers and drainage systems including force mains and other non-hazardous materials;
(6) Purple- Reclaimed water, irrigation and slurry lines;
(7) White- Designated area of proposed excavation or demolition; and
(8) Pink-Survey markings.
(j) All surface marking, flagging and staking utilized for the location of underground facilities shall contain:
(1) The name of the public utility or a commonly recognized abbreviation;
(2) The material of the facility in accordance with the following (where applicable):
(A) CI - Cast Iron
(B) CU - Copper
(C) PL - Plastic
(D) ST - Steel
(E) WI - Wrought Iron
(F) RCP - Reinforced Concrete Pipe; and
(G) TD - Tile Duct; and
(3) Special descriptors of the facilities (where applicable):
(A) CDT - Conduit
(B) INS - Inserted
(C) DB - Direct buried
(D) HH - Hand hole
(E) MH - Manhole
(F) VLT - Vault.
(k) All surface marking, flagging and staking shall be in accordance with the following:
(1) Markings for pipes shall appear as follows ("ABC" (which represents the name of the public utility or commonly recognized abbreviation), pipe size, material type and any special descriptors shall also be shown in sufficient quantities to be visible from any point in the designated area):
(A) Surface marking for a run of pipe;

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Conn. Agencies Regs. § 16-345-5