37
within the temporary casing
- structure or foundation
of
ent
rich Portland Cement Concrete, deposited in mass, should be laid to a horizontal bed to just above low water mark, and finished with a surface to receive the Granite Ashlar intended to form the face of the Wall.
The making of the courses of the Granite Ashlar of uniform thicknesses and lengths throughout the face would, I consider, be equally good, and certainly less expensive, if the same courses were adopted and in the blocks comprising the work.
Moreover, it would be better if the blocks were laid "header and stretcher" in alternate courses, rather than in the manner shown on the Section.
I am not aware whether the Wall, or any part of its length, cut hereafter, would be subject to Craft lying alongside of it, in a position to judge whether the action.
I am not sure it might not be advantageous to construct the superstructure of this Wall with Concrete blocks formed "in situ", both instead of with Granite Ashlars partly in Granite face.
I would recommend the omission of the iron cramps and the so-called "dovetailing" of the Coping, substituting grout-nicks in the lower courses, and diagonal joggles for the coping course.
I cannot ascertain from the papers whether there would be any material interference with the Roadway if the Wall were raised to a greater height above high water mark than is now proposed, viz. 1ft 6ins; this want of height would seem to jeopardize the safety of the Wall.
The Coating of Concrete should extend back for a width of not less than 25 feet from the front edge of the Coping, and should abut solidly against the back of the Coping Course -- not tapered off as shown; the top of the coping should be "weathered" off to correspond with the slope of the Concrete surface.
If the "rocky bottom" on which the wall is to be founded is sound throughout its length, I see no advantage - but rather otherwise - in placing boulders at the toe of the wall, or founding it in the manner I have hereinbefore recommended.
With respect to those portions of the sea frontage along which there is reason to believe that future reclamations will be made in consequence of the anticipated silting up of the foreshore,
where it has been proposed to repair the existing Walls, I regret that the information at present available here is quite insufficient to enable me to suggest any equally efficient and less costly method for effecting the desired object so far as regards this portion of the work than that proposed by the Surveyor General.
37
within the temporary casing
- shucture or foundation
of
ہے تو
ent
rich Portlana
Cervent Concrete, deposited in mass, should
AL
at bed
to
horizontal
be raind
to just above low water mark, and finished with receive the Granite Ashlar intended to form
the face of the Wall.
in
в
Bee
го
advantage, but the contrary. making the courses of the Granite Ashlar of uniform thickneses langths
Grz
and
q
the
the face, throughout. would. I corsider, be
Carne
The Work
equally good, and...
reasonable Amort
in the
Certainly left expensive, if
of variation of prizes different
the same
Cornses
Courso
CH
were adopted
and in the blocks comprising
Mneover it would
better if the blocks were laid
el
kuoron as
ni
be
α
the "header and shotcher" in alternate courses, rather than in the manner chevr
on the Section.
aw not aware
whether the tale. any part of its length cut
hereafter, would be subject to Craft lying alongside of it,
position to
Fudge whether
kine, now
the action.
120
arr
I in
a.
it might not be
avery
vuoro étonnuċuti
to
constuct the superstructure of this Vale
with Concrete blocks formed.
موع
Concrete vrate "in situ,
both instead
rishad of with
ou
ad
langs". Achtars"
Gr
partly in
Granite face.
would recommend the omission of
the iron cramps and the
Ro
called
"dovetailing" of the Coping, substituting
grout-nicks
grout - nicks
the lower courses, For
andy
whole depth diagonal joggles for the coping
Course!
I cannot ascertain from the papers
whether there would be
army
material interference
with the Roadway if the Wall were raised to a greater height above high water mark than is now proposed, viz. Itt gins; this want of height would seem
safety of the Wall-
to
mo
св
to jeopardize the any cate the Coating
of Concrete should extend back
Jor
a width of not less than 25 feet from the front edge
of
the Coping, and should abres solidly against the back the
Cofiring Course --
not tapered off as shown the top of the coping should be " weathered" off to correspond with the slope off. the Concrete surfald.
$2.0
of
If the "rocky bottoon" on which the wall is to be founded sound throughout its length, I see
advoustage - but rather otherwise _ in placing boulders at the 10e of the wall of founded the manner I have hereinbefore recommended.
With respect to those portions of the sea fcontago along which there is
to believe that future
xxxy
ber
reason
reclamations
made in Consegue. the anticipated silting up of
of
the foreshore,
117
where it has been proposed to repair the cxisting Walls, I regret that the information at frecent available here is quite insufficient to enable
tire
to-
Gray
coletler
arro de
lef costly desired object
Curr
any equally efficient oud be deviscol for effecting the so far as tegarði
this
portion of
the work than that proposed by the Surveyor
Gener
al
i
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