CO129-166 - Public Offices & Others - 1873 — Page 51

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by force pumping it in Cast Iron pipes up to the Reservoir at pokfooluur whence it would be conveyed to Victoria by means of the Conduit from Tok forlum or elee by sumeling

through the hill direct to the City at the level of the 300 feet Contour : separate Service Jank).

In this case a ez

somewhat below that level at the north- sem end of the Tunnel would.

be

necessary, and it would thus by gravity

only serve the lower parts of

a love

the City-

The Turnnd would be

about 2200 yards long.

It is very questionable which of these methods would be the cheaper - but I am wichued to favor

the butter, although the great draw back would be the difference of elevation of the point of delivery. If the former were adopted nearly the entire supply could be obtained from here and the pokpoolume water could be reserved for turres of dearth - but in that ease the pipes from

Aberdeen must be expable of delivering

to Pokforbun_ the full supply of 1,800,000 gallons daily - and they would conseg- very costly on account of

be

-uently

their size.

Having so far cursorily glanced at the capabilities of the Aberdeen Valley.

let us next turn our attention to those of the Tylaws Stream.

There is a good site for a cam in this Valley, at a little below the 500 feet contour level. That contour on the up- ebrean side of this point shews an area of 25 acres - whilst the next contour at 600 feet gwis 744

acres. With an embankment, of about the same height Aberdeen and with a depth of 50ft of water above the 500 level the contents of a Reservoir would be over 490,000, VVV

Gallons.

acres and

as that at

The gathering ground would be (6) consequently 100 acres more than that at Aberdeen for the 300 feet,

contour...

21.