544
Memorandum upon the repairs of
certain portions of the Praya wall.
The stiple of structure alluded to in paragraph 5 of the Report of the Commnissiont is that shown in Drawing B,
built
representing a Cross Section of the wall as actually with the addition of a Portland: Coment: Concrete backing
and Comring which it is now proposed, lo
carry
out.
The probobility of future peclarations in the localities
reforred to, render a more expensive design inexpectiont, and as experience; shows that the washing away of the wall is mainly due to the reflexe or buck wash of the waves which always begint by undermining the road way behind it, it is considered that the proposed additions will afford as sufficient protection during Ordinary
storms, though not against such typhoons of September last.
that
The most prominent defects in the stigle of sen defence
hitherts adopted in this Colony
a
clearly shown in
the drawing above referred to. The masonry is of inferior quality, the Mortor is not hydraulic, the