Haw. Code R. § 6-77-176 - Line markers for mains and transmission lines
(a)
Buried pipelines. Except as provided in subsection (b), a line marker must be
placed and maintained as close as practical over each buried main and
transmission line:
(1) At each crossing of a
public road and railroad; and
(2)
Wherever necessary to identify the location of the transmission line or main to
reduce the possibility of damage or interference.
(b) Exceptions for buried pipelines. Line
markers are not required for buried mains and transmission lines:
(1) Located offshore or at crossings of or
under waterways and other bodies of water; or
(2) In Class 3 or Class 4 locations:
(A) Where placement of a marker is
impractical; or
(B) Where a damage
prevention program is in effect under section 6-77-163.
(c) Pipelines aboveground. Line
markers must be placed and maintained along each section of a main and
transmission line that is located aboveground in an area accessible to the
public.
(d) Marker warning. The
following must be written legibly on a background of sharply contrasting color
on each line marker:
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