CO129-314 - Public Offices - 1902 — Page 487

(Copy) R.17304

Memorandum by Colonel Yorke.

C.O

482

1354

REC

&

REGE 11 JAN 12

I am of course unacquainted with the special conditions existing at Hong Kong, but I gator from the Governors letter dated 7th Septr, 1901, that

been

V

the Tramway will be laid for the greater part of its Length on land that has frece: Wy reclaimed from the sea. Under such circunstances I have some doubt

whether a depth 6 inches of concrete below the rail is sufficient. But assuming that the ground is now fairly consolidated and that the quality of the

concrete is good, I would be prepared to accept

a thickness of 6 inches of concrete, such concrete to

extend from rail to rail and for a distance of

18 inches outside each rail. This is the usual mode

of construction in England.

As regards the surface concrete, I would not, should

such a proposal be made in England, recommend the

acceptance of any thing less than 6 inches in thickness.

But te traffic in Hong Kong is said to be light and i:

the bed of concrete is laid as recommended

above, three inches may perhaps be sufficient

thickness for the layer of concrete on the surface

of the Street. But so much depends on local conditions

upon the making, mixing and laying of the concrete

and upon the quality or the cement use that I can

express no very definite opinions on the points und er

consideration.

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{Intd) H.A.Y,

21.12.