Channels.
8
(2) The size and gradient of every such channel, drain or sewer shall be adequate to carry off all cain water falling on and surface water draining to the private street, cul-de-sac, access road, pedestrian way or scavenging lane.
(3) For the purposes of this regulation, the intensity of rainfall shall be calculated-
(a) where the Time of Concentration is less than thirty minutes.
ut the rate of not less than six inches per hour; and (b) where the Time of Concentration is thirty minutes or more than thirty minutes, at the rate of not less than four inches per hour,
25. (1) Every channel in any private street, cul-de-sac, access road and pedestrian way shall bo-
(a) constructed of concrete, of a grade not less than Grade III. not less than six inches in thickness nor less than twelve inches in width;
(b) laid to a fall of one in thirty towards the kerb in cross-section:
and
(c) save as provided in paragraph (2), laid to a fall of not less
than one in one hundred in longitudinal section.
(2) Where the Building Authority is satisfied that it is impracti cable to lay any channel to a fall of not less than one in one hundred in longitudinal section, he may permit the channel to be laid to a fall of not less than one in two hundred and fifty.
(2) Where, in contravention of this regulation, any work has been carried out otherwise than by the Building Authority, the Building Authority may remove, alter or demolish such work and may carry out such other work as he considers necessary, and may recover the cost of any work carried out under this paragraph as if such work had been carried out pursuant to the provisions of paragraph (1).
27. Where, in any case, the Building Authority is satisfied that, Power of
Building owing to the nature of the ground or for other sufficient reason, Authority compliance with the requirements of regulation 9, 11, 12 or 13 is impracticable, he may waive such requirement and, upon any such waiver may, by order in writing, require such street works to be carried out, in lieu of compliance with such requirement, as he considers Decessary.
to walve requirements of regulations 9. 11. 12 and 13 and to require other work to be carried our in lieu thereat.
28. Wbere adequate tests have been carried out to determine Power of
Building the bearing capacity of the ground forming the foundation of any Authority I carriageway and the results thereof have been submitted to the Building to waire
Authority, the Building Authority may, if he is satisfied with the tests requirements
of regulation. and the results thereof, waive the requirements of regulation 16 and. 16. upon such waiver may, by order in writing, require materials used in the surfacing of the carriageway to be based on the results of such
lests.
purposes of
29. For the purposes of subsection (1) of section 26A of the Prescribed. Ordinance, the period within which plans of street works must be period for submitted to the Building Authority for his approval shall be two section 26A months from the commencement of these regulations.
of the Ordinance.
(68 of 1955).
PART IV.
Miscellaneous.
Live
Clerk of Councils.
Any work
in public
street to be carried out by Building Authority.
26. (1) Where—
(a) the forming or laying out of any private street, cul-de-sac.
access road or pedestrian way; or
(b) the provision of any means of access to a building fronting or
abutting on a public street,
necessitates the carrying out of any work in or the alteration of any public street, such work or alteration shall be carried out by the Building Authority who may recover the cost thereof from the owne of the private street, cul-de-sac, access road, pedestrian way or building. as the case may be.
COUNCIL CHAMBER.
27th November, 1959.
Explanatory Note.
(This Note is not part of the regulations, but is intended to indicate their general purport).
These regulations replace sections 104-106 of the Buildings Ordinance, Cap. 123, and expand the provisions in greater detail. They are mainly of a chaical nature. Regulation 26 provides that only the Building Authority is to carry out street works on public streets.
(Secretariat BL1/741/52)