I beam and Gate Shaft Cover
Abandon equipment to
be removed. The hand wheel was used to manually open and close the
main gate. All three gates are identical.
The new penstock will
cone diagonally downwards at about 45 degrees through the wall on
Gate Screwjack Motor and Works
Typical abandon gate
actuation mechanism. All equipment in this picture will be removed.
The power conduits from the gatehouse terminate in the panels such
as the one shown at the top of this picture.
above new turbine
Horizonal passage between
gate chambers. The steel at the top of this picture is used to support
the gate operator gear and motor for the gate. All three gates are
Picture shows steel works
that hold up abandon gate hoisting mechanism.
Note that the inside
of the dam is clean and dry.
This photograph is taken
from the most likely position of the new turbine looking downstream
at the bottom of the 5 by 8 foot shaft. This area will be widened
about 3 feet to accomodate a work and access area arounf the new
Pipe at 45 Dregees
The 45 degree slope where
the 30" river release pipe changes levels. Proposed plans will
be to change the lower 45 degree elbow to a bifurcation with the
straight branch (shown here) continuing straight down at 45 degrees
to a new turbine located in the lower gate chamber.
Note the 30" manual
check valve in the top right part of this picture. The flow gauge
section will be moved to this area to measure total flow. The 24"
pipe on the left is a drum gate drain pipe. These drain lines limit
new piping placement.
Conduit Horizonally Leaving Dam
This view is looking
downstream from the location of the proposed tap. This photograph
shows the removable portions of the 30" conduit including a
flow metering gauging section as it leaves the dam. The parts of
the pipe were made removable so that material could be lowered to
the lower gate chambers down the shaft shown covered by a steel
plate in the floor of this photo. The new turbine will be about
25 feet directly below the steel plate.
This view will look the
same when the new equipment is installed. The flow metering section
will be moved upstream before the bifurcation so as to measure total
flow to both the hydropower and the existing release port.