1900 - Coalmininghistorypa.org

I
No. 11. FIFTH -ANTHRACITE DISTRICT. 167
mer tuuiiel or waterway to Slope B, the two splits of the Buck Mountain
veiu were cut. A deep ditch was cut along the east rib of the
tunnel, and at the point where the ditch cut the upper split of the
Buck Mountain vein, a deep hole was sunk in the vein to arrest any
fine dirt or debris that might be carried by the water. Still another
receptacfe for the same purpose has been provided at the south end
of the tunnel in the Gramma vein. The ditches have been enlarged
and graded for the entire length of the west gangway (which was
originally driven level),
the east gangway driven on a slight ascending
grade affords a natural drainage for the entire length of th.^
workings.
At a point in the east gangway, 1,500 feet from the tunnel dividing
the east and west Gamma gangway, which is about 000 feet east
of the old slopes Nos. 1 and 2 in the Mammoth vein, a tunnel has
been driven south to the Mammoth vein, a distance of 30 feet, where
a
gangway was driven across the basin, draining the workings east
of slopes Nos. 1 and 2; the Mammoth workings west of said slopes
have a natural drainage to the main waterway in Gamma gangway
(with the exception of a gangway in the Mammoth vein in the center
of the basin at a lower elevation than the present working), completing
a natural drainage for the entire colliery. The water passing
through No. 2 gamma gangways (which forms the main waterway),
enters the tunnel to Slope B, depositing any sediment that may
be carried along in the receptacle provided for the purposes in the
Gamma vein at the entrance to the tunnel. In the event of this
receptacle lilling up (which could arise from excessive rains), the
surplus sediment would be arrested in the second receptacle or that
provided in the upper split of the Buck Mountain vein. After passing
this point, a gate has been built across the ditch with slats
one-quarter inch apart, to prevent anything entering the pipe which
might float down the ditch. The water enters a wooden tank
4x4x8 feet deep, set iu Slope I>. the to]t of which is on a level with the
bottom of the ditch. A 12-inch column pipe has been connected to
the bottom of the tank and extended down Slope B connecting to
a 16-inch pipe set in the dam built by the Jeddo Tunnel Company
which empties into the tunnel.
With a view to centralization, a slope was driven to the surface
in the Gamma vein al a point near the center of the basin and on
the south side of the main basin, coming to
the surface through the
rock owing t