Hawaii Administrative Rules
Title 19 - DEPARTMENT OF TRANSPORTATION
Subtitle 4 - HIGHWAYS DIVISION
Chapter 105 - ACCOMMODATION AND INSTALLATION OF UTILITIES ON STATE HIGHWAYS AND FEDERAL AID COUNTY HIGHWAYS
Subchapter 3 - FREEWAYS
Section 19-105-13 - Utility crossings at highway structures
Universal Citation: HI Admin Rules 19-105-13
Current through February, 2024
(a) On active projects:
(1) A utility may be
supported by hangers or brackets attached to a structure and left exposed
provided:
(A) It is shielded from public view
and is not visible from the freeway;
(B) It can be accommodated without
substantial increase in sections of the structure; and
(C) It can be serviced without access from
the freeway through-traffic roadways or ramps. See exhibit "N" attached at the
end of this chapter.
(2)
A utility may be carried within a structure or through a box girder provided:
(A) It will not adversely affect the
structure;
(B) An appropriate
sleeve or concrete encasement is utilized;
(C) It can be serviced without access from
the freeway through-traffic roadways or ramps; and
(D) That provisions for servicing the utility
are incorporated in the design of the utility. See exhibits "L" and "M"
attached at the end of this chapter.
(3) Large utility lines or groups of lines
may be supported on a separate utility structure provided provisions for
servicing the utility are incorporated in the design of the structure. See
exhibits "L" and "M" attached at the end of this chapter.
(4) Liquid fuel lines other than fuel oil
will not be permitted on structures.
(b) On completed projects: On previously constructed state projects, a utility may be supported by hangers or brackets attached to a structure and left exposed provided they conform to the "active project" requirements specified in subsection (a) of this section. See exhibit "N" attached at the end of this chapter.
(c) General requirements for utility crossings:
(1) The encasing pipe shall be
carried out for a minimum of 20 feet beyond the back of the bridge
abutment.
(2) Support of utility
lines on structure shall in no way interfere with free movements of
structure.
(3) Location, size and
number of utility lines permissible on bridge shall be determined by the
State.
(4) Design and installation
of utility pipe lines shall conform to the requirements of section 19-105-12
and the AASHTO policy specified in section 19-105-10.
(d) Domestic gas lines:
(1) For gas lines, casing shall be provided
with vents near abutments.
(2) The
maximum size of gas lines inside box girders shall be 6 inches.
(3) Maximum pressure allowed in gas lines on
highway structures shall be 65 PSIG (pounds per square inch gauge).
(4) Gas lines and casings on structures shall
be provided with cathodic protection where necessary.
Disclaimer: These regulations may not be the most recent version. Hawaii may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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