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The Louis Frost Notes 1685 to 1962
DOMINION COAL COMPANY LIMITED
OLD SYDNEY COLLIERIES and ACADIA COAL
Extent of Development
Phalen Seam
This seam has been extensively developed, but at the present
time there are no collieries operating on this seam.
Harbour Seam, Victoria or Sydney Main Seam
This is the most extensively worked seam in the Sydney Coal
Field. There are at the present time five collieries operating
on this seam, Dominion Nos. 12, 18, 20, 26 and Princess Colliery of
Old Sydney Collieries Limited.
The seam, which averages nearly 6 feet in thickness, is continuous through the Glace Bay, Lingan and Sydney Mines basins.
It thins to less than 2 feet 6 inches north of Florence, near
Sydney Mines.
No. 12 Colliery
The main deeps have been developed a distance of 2.8 miles
seaward from the slope mouth. The area opened out is sufficient
to maintain the present output for about five years.
No. 18 Colliery
This colliery is developed seaward by a main deep 5,700 feet
long in the Phalen Seam and a horizontal cross-measure tunnel
2,300 feet long to the Harbour Seam. The present workings are
9,000 feet from the entrance of the tunnel into the seam. The
area developed is sufficient to last three years at the present
rate of output. The Harbour Seam will be fully depleted at that
time.
No. 20 Colliery
This colliery is developed by two cross-measure tunnels
from the Phalen Seam at a distance seaward of 7,600 feet from
the shaft bottom.
The tunnels are one mile long and connect with a motor haulage level running parallel with the contour of the seam. This
road is developed from the mouth of the tunnel a distance of
14,000 feet South and 6,200 feet North.
From the motor road two deeps are developed seaward a distance
of 3,800 feet. The area developed is sufficient to maintain the
present output for approximately four years.
No. 26 Colliery
No. 26 Colliery is developed from a motor haulage level in
the Phalen Seam, by a cross-measure tunnel located 14,000 feet
from the shaft bottom.
The tunnel is 2000 feet long and connects with a motor haulage
level running parallel with the contour in the Harbour Seam. This
level is developed 6900 feet south and 8600 feet north from the
mouth of the tunnel where it enters the seam.
The area has been developed by three deeps seaward to a
depth of 4400 feet from the Harbour Seam motor level. The developed
area is sufficient to maintain the present output for a period of
four years.
Princess Colliery
The main haulage deeps have been developed a distance of
19,150 feet seaward from the shaft bottom. The area now opened out
is sufficient to maintain the present output for 7 years.
McBean Seam, Thorburn, Nova Scotia
The colliery is developed under the land area by a main
deep 6,400 feet long from the mouth of the slope. Sufficient area
has been opened to maintain the present output for about six years.
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