CO129-509-15 Water supply- development scheme 30-1-1928 - 17-1-1929 — Page 73

ঔ

-2-

72

subway or tunnel, and it appears to me that if in the future this

question of transport has to be taken up, it might be possible to

utilise a subway for pipes, in the first instance, to be enlarged

afterwards and when required into a tunnel large enough for the

transport of persons or vehicles, but without committing myself in any way, until I have surveyed the site, it appears to me that

it might be possible to construct a subway which would be

available for the pipes, and would also in the future be

available by enlargement for a full sized tunnel and offer

facilities for constructing such.

It is very difficult to estimate the cost without some

knowledge and personal examination of the site, etc., but assuming the rock is granite, continuous and solid in the bed of the harbour, the cost of constructing a subway with pipes might be less than the proposal to lay the pipes with sufficient cover in the bed of the harbour, as recently tendered for.

This would obviate all danger from anchors of any craft dragging across the site of the pipes, and it has another advantage - the work could proceed independent of the weather, and the plant would not have the same risk in a tidal harbour. In addition, the heading or subway could be used for other purposes, such as cable for telegraph, lighting and possibly gas

mains.

I have not raised these points with Mr. Ellis, who was present at the conference, but if you think I should do so

I await your instructions.

I am, Gentlemen,

Your obedient Servant,

(Sgd) William Fairley.