Montour American. (Danville, Pa.) 1866-1920, 1904-05-12
MACADAM
SPECIFICATIONS

The Macadam and TelfoTd speclhca-
tions for the road leading 10 Mausdale
which have just been received from
the State Highway Department cover
only that portion Of the distance be-
tween the Northern line Of the bor-
ough and the Mahoning and valley
township line,a distance OF about 4o'o
feet.
The specifications are OF general in
,erast as revealing the kind of materl-
al that is to enter into the construc-
tion of the road, the width of the high
way, the methods to be employed and
the general terms imposed.
The contractor will have to do all
grading either by cutting or filling as
the case may be and shall remove from
the highway all trees, stumps, roots
poles, fences, walls. buildings or 9TH
or encumbrances upon or in the road
gsy and all spongy or unstable mat
erial, replacing the same with solld
material. In all cases where the earth
fill exceeds one foot in depth, the fill
ing must be deposited in layers, or
courses, not exceeding one foot IN
depth loose measurement.
The completed grade is to have a
slope of one half inch to an inch to
the foot from the center to the sides
according to the percentage OF grade
of the road, and the side road is TO
conform to the face7grade of the cCm-
pleted roadbed so that an unbroken
slope shall be presented from the cent
er to the shoulder or bitches on either
side
The graded road bed must be rolled
until firm with roller weighing not
less than $4,000 pounds.
Only good stone shall be used IL
macadamizing. On the prepared road
bed shall be placed the bottom course,
extending nine feet on each side of the
center line and composed of l = incl
crushed Stag. After being evenly
spread the course shall be thoroughly
rolled until none of the stone move
under the roller. All material mus
be dry, but water must be applied
ahead of the roller The bottom course
must be five inches deep after rolling
The second course is to be trap rocl
two inches deep after re ling; it is t
be composed of stone that will pas
through one and half inch ring il
all FQtllssd gaaP as apPreYloush7 Bg Dh
inch thick and composed of trap rocl
screenings not exceeding one hal
inch In diameter. 1t shall be applied
dry and rolled once before wetting
then alternate applications of water
and rolling until completed.
Earth cutters shall not be less thar
"a inches wide at the bottom, with al
even grade, with no pockets of loose
earth left in the bottom.
The repaired roadway is to be eigh
teen feet wide. According to the esti.
mate of the State Highway Department
there will be.300O cubic yards of ex.
cavation in the part of the road cover.
ed by the specifications 2,023 cubic
yards of macadam 20 cubic yards OF
masonry in culverts; ll2 lineal feet
tile drain; 36 lineal feet 48 inch iron
drain; go square yards of cobble gut
ters.
These calculations are not given as
exact and each contractor must him
self be responsible for the data upon
which he bases his bid.
The bids are to be- in by June 49,.
1904. The contractor Is to begin work
within Is days and shall complete it
within three months from the signing
of the contract.
The above are not the full specifica.
tions but only excerpts printed to con
vey to the general public some idea of
what approved and scientific road
making is like.