cost of putting down a sufficient number of junks to form
substantial obstruction to enemy's ships, at between £40,000 and £100,000, and further, he states his belief that it would take at
least three months to complete
this work.
3.
There seems to be
little doubt that the best form of obstruction, and at the same
time the least expensive, would be by
a rough stone
breakwater which would have
this advantage over both piles and
sunken junks, that it would not
require renewal on account of
The Surveyor-General estimates
decay.
the cost of such a breakwater 2000
yards in length and brought up to low water level at $150,000, and
he has received a tender from a reliable Government Contractor to perform the work for that sum. The estimate for this work by the Royal Engineer department is much higher but his proposal is to extend the breakwater from
Green