The Anaconda standard. [volume] (Anaconda, Mont.) 1889-1970, 1896-05-03

cost; cost OF repairs; life of the navA.
ment; ease with which IL can be re.
paired. or taken up and replaced for
the purpose OF repairing fixtures un-
derneath; slipperiness, and genera
adaptability to our climate, traffic and
other conditions. =. - :
Asphalt is easily kept clean and of-
fers less resistance to traffic than AL
most any pavement and IL properly re
paired lasts from Is to 20 years: alto
gether Is most excellent and satisfac-
tory pavement for a medium traffic on
streets when the grade does not exceed
four or five per cent good asnhalt
pavement could probably be laid in this
city and kept in repair for FIVE years
under a guarantee for from 50. so to 20 20
/ per square yard. lr
The grade of Park street bstween
Montana and Arizona streets doeS not
exceed three per cent. in any y,face.
There Is. however, a side slope which
would exceed the slope generally con-
sidered maximum for this kind of
paving; for instance, the sidewalk
grade at the property line at the south
west corner of Park and Main streets
is four feet lower than that at the
northwest corner; by placing the curb
four inches lower than this Gin other
words, giving the sidewalk a fall of
four inches) on the north side, and two
ihOhcS iOWeT On lne south side. and
placing the top of the paving material
six inches below the curb. we have a
fall of about one foot and ten inches
between the south rail of the street
car track and the top of the paving
material at the lower curb, a distance
of 10 feet, which is equivalent to a
grade of nearly 10 per cent The slope
is at right angles to the line of traffic
and i think would offer a less secure
m hoV
travelling straight up or down the.sIope.
and would, therefore, be most objec-
tionable. trt
Paving composed of round cedar
blocks laid on a foundation of two
inches of sand and two-inch plank. as
well as the same laid upon six inches
of concrete is used extensively in ST.
Paul, Minneapolis and Duluth; it has
many points of excellence, such as good
(probably the besD footing for horses.
noiselessness and cheapness of first
cost, ease of removal, and ease with
which Ii can be taken up and relaid for
repairs of fixtures underneath 1t is
objected to by some upon sanitary
grounds, but / think in this cold, dry
climate. that feature need not be con-
sidered. Notwithstanding it's many ex-
cellent points, could not recommend
round cedar block pavement, because
of the unequal wearing of the sap and
the heart, which makes after few
years a very rough pavement.
Unquestionably the best pavements I
have ever seen are the wooden pave
ments of London and Paris. They are
composed of blocks of Baltic pine from
six to ten inches long, three inches
wide and six inches deep, laid or set
directly upon foundation of six inches
of hydraulic cement concrete, the
blocks having been first dipped in creo-
sole oil. The blocks are laid directly !
upon the smooth surface of the con-
crete base, in rows across the line of |
traffic, leaving spaces of from one-
quarter to three-eighths of an inch be- |
tween blocks. These spaces are then |
filled or run in with hot bituminous |
mastic, about one inch, and the rer |
filled with cement grout. These |
pavements last about eight years under |
very heavy traffic and with lighter |
traffic much longer. i saw some that |
had been in use Is years.
I see no reason why our Montana |
yellow pine or fir. If similarly treated |
would not make as durable pavement !
as those of London and Paris, even |,
without treatment. If laid in manner
similar to that practiced in st. Paul.
and Duluth. I think it /
would last from seven to ten years. On
/ estimate the cost of either round |
cedar block, or rectangular pine or fir |
block pavement in this city, including |
as follows:
Upon a foundation of two-inch plank
and sand about $3.50 per square yard.
Upon a foundation of six inches Of con-
crete about $3.50 per square yard. ~"
The concrete foundation would of
course be permanent, while a wooden
would have to be renewed
at every removal of the covering, or
wearing surface.
There is no question but that an I'M
yielding foundation, concrete. impervi-
Dus to water, is a requisite for a first
class pavement; from motives of econo-
my, and for other reasons wood
IN paving is often laid upon a founda-
ton of sand and two-inch plank. This
makes a cheap pavement in first cost
and has the advantage of being easily
taken up in sections, either large or
small for renewals of underneath fix
lures.
l would respectfully recommend TO
your committee the adoption of good
composed of concrete for
my pavement you may select; but
would also call your attention to the
advantage of the cheaper one. 80.
Before any paving is done il will be
necessary to provide for the care of
surface water by catch basins and
trains from the same { o the storm
sewers. Seven catch basins and about
100 feet of drains will be required for
his purpose, and will cost about 81. 500.
1t will also be advisable to compel
property owners to make connections
With the sanitary sewer and with the
water main when such has not already
been done. The law provides fully for
his work. IL can be done by the city
Ind charged as special tax against
he property IL necessary.
1t is not usual to pave streets upon
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