Vilas County news. [volume] (Eagle River, Vilas County, Wis.) 1896-1927, 1901-04-01

three inches OF ,nan0-DfOKen STONE "
pass through a 21a inch ring, then q
two-inch layer of machine broken
stone, the whole smoothed off with o
hand roller and after top dressing IS
applied thoroughly rolled with q
steam roller. Onthls layer OF line
gravel and quarry clippings, mixed
in equal proportions, three-quarter
inches thick, must be placed, and well
rolled so as to fill all interstices. Be
fore finishing, a dressing OF stone
screenings for the purpose of coloring
should be scattered broadcast to be
worked in y the traffic. All layers
including the coloring layer, must be
thoroughly compacted by rolling
sThe stone to be tarred must II
moist be heated on an iron floor,
under which are fues from ire,
until the moisture is driven out. The
material in it's heated state is then
thoroughly mixed with a sufficient
quantity of tar. The broken stone in
warm weather may be sun dried but
in all cases the finer course must be
artificially dried. At the same time
care must be taken not to get this
material too hot The tar should be
boiled in iron kettles holding LOO
gallons. Eight gallons should be add
ed to each cubic yard of the cOarser
material or more if required to com
pletely cover the stone, and IL to Ii
gallons to the finer kinds of stone.
/ Il nOo1 tor free
from all foreign substances and con-
tanning not more than 5 per cent OF
water and shall contain not less than
Sc per cent. pitch. The work must be
done in the summer months, and all
work must be suspended during wet
weather"
| The roadways in these cities, says
DR.. Buckley, have not been in use
sufficient length of time for any one
| to give definite information as to
their suitability, for city pavements.
1t was also impossible for him to OBJ
tain information concerning the
probable cost of cleaning, repairing,
and sprinkling these pavements.
In Hamilton, Ontario, this pavement
cost about Csc. per square yard, the
same being based upon the coal tar
at 1915 per barrel, laid down in
Hamilton, and labor at 18c per hour.
City Engineer Wingate of that place
writes that he has ever reason to be-
lieve that the annual cost of repairs
would not exceed &c per square yard.
City Engineer Graydon of London,
Ontario, writes that the pavement
which they have laid have cost $1.2O
per square yard He says the only
caution to be observed in laying this
pavement is to have an inspector see
| that the specifications are carried out
/ to the letter. His remark that
eternal vigilance is the only way to
get good work. might be followed
with profit by some Wisconsin in
spectors Of street work.
City Engineer Rust of Toronto,
Ontario, says that the tar macadam
roadways which are being constructed
in that city are costing from $1.30 to
$1.40 per square yard. The tar
macadam streets constructed in that
CITY COn01OC nloC, VI d Sl OL OlOhSA
stone 4 inches in depth which is thor
oughly wetted and rolled as for an
ordinary macadam roadway. On top
of this is laid a course of tarred stone
inches in depth, upon which is a
dressing of II inch of fine grants
clippings and gravel, which are also
mixed with tar, the whole being rolled
with steam roller This construction
is simple and should be carefully con
sidered by anyone contemplating
using tar-macadam as a pavement.
In some sections of Wisconsin, con
tinues Mr.. Buckley, there occur vast
quantities of quartize and granite
both of which have been considered
unsuitable for macadam pavements on
account of the difficulty experienced
in packing the rock firmly on the
streets on which it has been used.
In a number of important instances
these deposits of quartzite and granite
occur in localities where other ma,
terial for street pavements are very
scarce. He is inclined to believe
that the tar-macadam pavement which
L
has been tried in Canadian cities and
which has all the appearance of being
we'll adapted to the light traffic of GER
tain sections of this state, could be
used advantageously in many munich
palities where the expense of con
structing asphalt or brick pavements
is retarding the improvement of the
highways
Necedah, for example, is situated
! in the midst of vast area of marsh
and prairie lard, from which oc-
casional hills of sandstone and quartz
lite rise to relieve the general
monotony of the landscape The ap-
proaches to the city are, in some
cases, over roads which are beds of
sand for miles. The only stone
easily available for improving these
sandy stretches of road is the quartz
tie which occurs at Necedah in I'M
limited quantities almost within the
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