The Pacific commercial advertiser. [volume] (Honolulu, Hawaiian Islands) 1885-1921, 1907-10-11

DSTS OL the DOdEu, anu tIlS llildl OoCl-
sion as to whether this work should
be commenced upon lies entirely with
this committee.
1T is TO be strictly understood that
the road department does all of it's
work under the orders and approval
of the said committee.
EXAMPLE OF MACADAMIZING.
IN explaining the method of ma
cadamizing streets, L will take, as an
Executive Building.
THE work of safeguarding and ma
cadamizing is being done in almost
the same way as the object lesson
road in the grounds of the U. S. De-
partment at Washington.
THE grounds were first properly
drained by putting in a suitable num-
Der of catch basins, connected with
each other by vitrified pipe, then scar
flied and sub-graded and brought to
crown of a true arc, to the height of
fifteen inches at it's center. This was
rolled with a 15-ton roller. coat of
No. l macadam was then put on,
watered and rolled from cutters to
center. A coat of No. macadam was
put over this, again watered and roll
ed, then screenings called No. 8 were
put on, followed by rolling until it ap-
peared as being properly bound. When
thoroughly dry, a coat of heavy oil
was put on and worked in by brooms,
the oiled section blocked for a few
days, and a coat of sand put over it
and rolled in by the steam roller,
second coat of oil put on it and after
two or three days a light load of No.
sprinkled over it, and the road open
ed for traffic.
1.-THE cost of the objest lesson road
in the grounds of the U. S. Depart
ment at Washington was seventy cents
per square yard. and the cost of the
work around the Executive Building
grounds is thirty-six cents per square
yard, the difference in cost being due,
I claim, not only to the nearness of
the quarries, but also to the system
and thorough organization of this de-
partment.
Occasionally we hear criticisms that
the thickness of macadam put on
roads is not sufficient, that it should
be at least twelve inches, but modern
practise as recommended hg the best
if the sub-grade is properly graded
and rolled, the macadam should not
be thicker than six inches in the GEN.
ter, and four inches at the cutters, the
theory being that macadam is only a
wearing surface.
IN SIZE OF ROCK.
1T is the prevailing opinion of au-
thorities on road building that rock
used in constructing roads should not |
exceed two and one-half inches in size. |
This department, about three years |
ago, when most of the No. rock. |
which is about two and one-half inches |
n diameter, was required for concrete /
work in repairing bridges damaged by |
The storm of 1904, and having large
quantity of No. 1 rock on hand, as an
macadamized that portion
IF Pensacola street between Wilder
md Beretania avenues with only No.
.ock, which is from three to six inches
n diameter, and although heavily
aden teams from the quarries are con-
;tantly going over the road, it is still
n a very good condition.
Recently several streets have been
,iled in Honolulu, the best results be-
ng obtained on Piikoi, Kewalo and
dakiki streets, and the last storm
that streets which were
lied suffered practically little or no
and there is no question that,
hould the high-grade streets be oiled,
hey would escape costly injury from
he annual winter downpours.
CONCRETE CUTTERS.
t9rT1lo |
or even stone-paved cutters
OF only add to the appearance of the
treet, but are beneficial in a sanitary /.
as they are easily kept :
lean and also add to the preservation
the street in the rainy season, but :
he immediate cost of constructing i,
lch cutters is so large that this de-
artment is prevented from so doing q
trough lack of funds, but from time .
time in the past, when funds were
cutters were constructed on 9
sveral streets, among them being n
tumen cutters around Chinatown,
ort and Hotel streets; concrete gut ~
RS on King street near Fort street, n
ackfeld street, Bethel street, and r
one-paved cutters on Kapiolani, $
pencer, Piikoi, Kewalo and Punahou q
reefs, and Manoa road. n
AUTOMOBILES AND ROADS. e
In the last few years we have met 8
new problem, the destruction of ma q
Ldamized roads by automobiles, the L
-pid revolution of the wheels being
e chief means of loosening the top Il
'essing. With the increase of the q
'e of automobiles, comes the increase
complaints about ruts and holes in II
e streets in and around town. It .
ems to be a matter of fact that the
pressions and cavities in the roads 1t
retofore unknown are being gener-
ly detected by automobilists, who do
It fail to acquaint the road depart -
ent with the existing conditions. "
Owing to the constant increase of IL
Itos, if law were passed here, as a
lists in several States, whereby all II
kes collected for automobiles We're
rned directly over to the department
roads. it would meet with public
prevail
With the addition of every mile of
road to those already in Us
istence, the problem of keeping these E