The Breckenridge news. (Cloverport, Ky.) 1876-1955, 1908-12-02
screen. This course shan be three

screen. This course shall be three
inches In depth after rolling.
"After the contractor has taken out
all wheel and foot marks on the sec
ond course and has finished rolling he
shall then put on the last or finishing
course. which shall consist of 60 per
cent of stone and 40 per cent of bind
ing material. No stone shall exceed
one inch longest diameter. This course
must be spread with shOvels either
from the wagon or from the gravel
dumped on the shoulders. The con-
tractor must not dump the loads of
gravel on the road proper. This course
after being spre>d uniformly shall be
wet down and rolled, and the wetting
and rolling shall be continued until
the road is solid and firm and will not
show the mark Of hoOf or wheel while
driving over it,"
There are many miles of gravel
roads within the state Of Connecticut
which are as smooth-to use n term
that is becoming familiar as applied
to improved roads-as a billiard table,
and when, after year or so of traffic,
|
rock splinters it is difficult to note the
difference in appearance from mac
adam. This construction affords a
hard, smooth and durable surface.
On this official tour Of inspection
there was included a stretch Of telford
construction. Here the travel path
had been excavated to a depth Of a
foot below grade line, and then the
large stone for the first or bed course
was laid. In doing this class of work
the commissioner requires that "the
bed stone shall be of the following d.
menslons Six to ten inches In width,
eight to eighteen inches In length and
eight inches deep, placed by hand,
broadcast surface of depth of stone
placed down and stones laid in courses
across the road, all joints broken and
all interstices chinked in and wedged
with broken stone. All sharp points
of stone must be broken of with the
hammer to bring the surface Of the
bed stone true to grade. The bed
stone should be laid up full and strong
so as to allow for all settling in roll
ing In no case will the contractor
be allowed to use stone that is not up
to all these requirements. After bed
stone has been laid, chinked and
broken off to grade the roller shah be
run over the bed stone until it is firm
ly bedded and will not kick or rock
under the roller. No nests Of small
stone will be allowed, nor will the con-
| tractor be allowed to use rotten stone
"The second course shall be four
inches over all after rolling and must
be broken trap rock unless otherwise
specified. The stone used for this
course shall be from three-fOuths Of
an inch to two inches longest diane
ter, mixed in the screens mot in the
bins, the smaller sizes to predominant
The size Of stone for this course must
be strictly followed to the letter, no
tailings will be allowed. and any de-
parture from the size specified will be
at the contractors risk. The stone
must be dumped on the sides of the
road proper or on the bed stone foun-
dalton and be scattered with shovels
to the required depth sufficient to roll
down to four inches. The rolling shall
be continued until the stones are thor
oughly united, firm and solid under
the roller.
"The top course shall be one inch
thick when finished. Trap rock screen
ings, including dust (no screenings
larger than one-half inch stone will
be allowed, shall be used as a finish
ing course. The screenings after roll
ing has been done on the last course
Of broken stone shall be carted on the
sides Of the road proper and dumped
at suitable intervals. after which all
wheel tracks and foot marks Of horses
shall be carefully filed and then rolled
down firmly. Then screenings shall
be scattered dry over the surface so
as to I'll all interstices, and the roller
shall he run over the surface so as to
shake I'm the dust. Immediately after
n sprinkling cart shall be used and
the screenings washed in, after which
more screenings must be added and
sprinkled and rolled again. and the
screenings. rolling and sprinkling must
be continued until all the coarse
stones have been covered and the in
terstices completely filed and the road
is smooth and will shed water and
measure in depth one inch Of screen
lngs for wearing surface. The con-
tractor is not to be allowed to put on
the screenings all at one time, but
must spread them on as described
jabove, and he is not allowed to devi-
ate from the above treatment in any
way The contractor must not wet
the screenings before they have been
scattered on the broken stone, and
Furthermore. they must be perfectly
dry before they are put on the road"
1t requires constant vigilance dur
ing the term Of construction to insure
value received I'm road building. And
one who has Travelled for a day at a
time with several state highway com