The Select Committee of the Legislative Council, appointed on the 15th
June, 1852, "to inquire into and report as to the best means of preventing
the injuries likely to arise to the cities of Sydney and Newcastle by the
influx of sand from the neighbourhood of those cities," having taken
evidence relative to the nature and extent of the evil and a suitable
remedy, have agreed to the following report:
Your committee consider it unnecessary to describe
in detail the extent of the damage which has been sustained over portions
of the outskirts of the the cities of Sydney and Newcastle,
through the drifting of the loose
sands which abound on the adjacent hills. They content themselves with
stating that portions of streets, fences, and even houses, are completely
buried under the drifts; that every dry gale is is productive of damage;
that the evil is increasing with a rapidity, and has attained a
magnitude, to excite serious apprehension for considerable portions of
either city, unless means be soon adopted to stay its progress; and, that
in addition to the damage to property in the two cities, their respective
ports receive material injury from the quantity of sand which is swept
into them during every heavy shower of rain.
But although the nature and extent of the damage is such, in the opinion
of your committee, as to demand energetic measures of prevention, they see
no reason to apprehend that their adoption would occasion any serious
outlay.
Your committee would point out that the evil is to be attributed solely to
the heedless and wanton destruction of the close undergrowth of native
shrubs which originally covered the sandy tracts in question; but it does
not appear from the evidence taken before them, or from personal
inspection of the Sand Hills near Sydney by some of its members, that the
portions so denuded and subject to drift, are of great extent; part of
them, only, remaining unalienated.
To this portion your committee propose to confine their observations
although it will be obvious that some legislative enactment will become
requisite to compel the owners or occupiers of sandy tracts, in the
vicinity of the two cities, which may be subject to drift over the
adjoining land, to take measures to abate the evil, similar in effect to
those which your committee are about to submit for adoption............
With regard to a portion of the tract of drifting sands near Newcastle
there is a difference, requiring, in the opinion of your committee, the
partial substitution of another means of reclaiming it.
The part in question is bounded on the
east, to a certain extent, by the open sea, where the cliffs dip into the
bottom of a small valley opening seawards. Across the mouth of this valley
which has been quite denuded of its covering of shrubs, and which is
perfectly exposed to the force of the south easterly gales, a wall of dry
masonry, fourteen feet thick at its base, is in the course of being
constructed, to prevent the further encroachment of sand from the naked
beach, the site being about the level of high water mark. It is
questionable in the opinion of your committee, whether this work, which is
of an expensive character, and which will take much labour to complete,
will long continue to answer its object, should it even, in the first
instance, prove to be a sufficient obstacle.
Solid
barriers of resistance to gales of wind are for the most part
objectionable, because the current will overleap any such obstacle of
moderate height, and fall with scarcely diminished force upon the space
immediately beyond. Your committee would suggest a much less expensive
remedy, which, if carried out under the direction of an intelligent
person, would soon oppose a barrier not liable to be surmounted, or to
suffer dilapidation from the effects of time alone. Let two fences or
scrubs of brushwood be erected from twenty to thirty yards apart, parallel
to the beach, a little above high water mark, from six to ten feet high,
sufficiently stable to stand the force of the strongest gales, and to
protect from the trespass of cattle the space they enclose. Let them be
rendered just close enough with branches of small leaved rigid plants,
such as the varieties of native "tea tea" (melaleuca and
leptospermum), to break or moderate the force of a current of wind,
without wholly obstructing its passage through them. It is desirable that
they should be closer below than above.
Let the space so enclosed be
planted with the several varieties of native shrubs which naturally affect
the margin of the beach. The seeds of such plants may also be sown in the
manner recommended by Mr. Moore, and their germination, as well as
subsequent growth, be greatly promoted by the use of small branches of
native shrubs inserted into the sand in a sloping direction. The use of
portions of seaweed and wreck, as well as the planting of the
mesembryanthemum (Hottentot Fit or "Pig's Face") and other creeping
plants peculiar to such sites, might also be made a means to promote the
progress of such a plantation.
There are everywhere along the coast examples of narrow ridges of sea sand
covered with dense thickets of shrubs, even down to the very wash of the
sea, which serve to protect effectually from the encroachment of the sand
more open tracts immediately behind. The varieties of shrubs should be
selected which naturally flourish in such situations; and there seems to
be little doubt that, if protected for a few years in the manner above
described from the violence of the wind, and secured from wanton
destruction through the trespass of cattle or otherwise, a similar living
screen for protection may be created and kept up at moderate expense,
ordinary intelligence being observed in its formation. The committee urge
that the operations of hacking the surface of planting the grass, and
inserting the shrubs for protecting it, should be carried on
simultaneously or the labor may be in vain.
To carry out their suggestions for the present, your committee would
recommend:
That the sum of £250 be granted towards reclaiming the Sand Hills near
Sydney, and the same amount for the like object at Newcastle; and that an
address be presented to His Excellency the Governor General, requesting
that he will be pleased to cause these respective sums to be placed upon
the Supplementary Estimates for the year 1852.
That as soon as convenient the process of reclaiming
the respective sandy wastes referred to the consideration of your
committee be undertaken according to the plans described in the body of
this report.