14
198
The stresses per square foot, are speaking from memory, less than those which obtain in the case of the Tytam Dam.
I agree, with the Director of Public Works, that the dam should be carried up, at once, to the full height.
The saving, due to leaving off at a lower level, will be small.
The reservoir capacity, even at the full height, is by no means excessive.
If the dam is to serve as a road or path, by completing the dam at once, this roadway can be constructed at its final level, and will not require subsequent alteration.
(8) I presume that trial-pits have been sunk, along the centre line of the dam, and that the depths of foundation, shown on the sheet of sections have been fixed in accordance with their indications. No longitudinal section of the dam is given, so I am unable to ascertain the intentions of the designers, in the matter of foundations. I am however of opinion that in getting out the foundations, stepping should be avoided. The base of the foundations should, as far as possible, be an uniformly inclined line. Abrupt changes of level should be avoided, as far as possible, because sudden variations in depth tend to cause irregular settlement.
(9) No drawing of the waste-weir has been sent to me. I am not therefore in a position to offer any opinion as to its sufficiency.
The position of the waste-weir, as indicated on the general plan, is satisfactory.
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14
198
The stresses per square foot, are speaking from memory, less than those which obtain in the case of the Tytam
Dam.
I to be rried up
full ight at
(7)
ice.
I agree, with the Director of Public Works, that the dam should be carried up, at once, to the full
height.
level, will be small.
The saving, due to leaving off at a lower
The reservoir capacity,
even
at the full height, is by no means excessive. of the dam is to serve as a road or path,
the dam at once, this roadway can be constructed at its final level, and will not require, subsequent altera-
tion.
The creat
By completing
oundations.
(8) I presume that trial-pits have been sunk, along the centre line of the dam, and that the depths of foundation, shewn on the sheet of sections have been No longi- fixed in accordance with their indications, tudinal section of the dam is given, so I am unable to ascertain the intentions of the designers, in the matter of foundations. I am however of opinion that in getting out the foundations, stepping should be avoided. The base of the foundations should, as far
Abrupt as possible, be an uniformly inclined line. changes of level should be avoided, as far as possible, because sudden variations in depth tend to cause irregular
settlement.
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(9) No drawing of the waste-weir has been sent to
I am not therefore in a position to offer any opinion
as to its sufficiency.
Bie,
The position of the waste-weir
as indicated on the general plan, is satisfacoory.
3
f
7
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