structure 693 feet 9-3/4 inches. In the fourth section it was decided
to omit a regular engine with its 5,000 kilowatt generator, and in its
place substitute a 5,000 kilowatt lighting and exciter outfit.
Arrangements were made, however, so that this outfit can afterward be
replaced by a regular 5,000 kilowatt traction generator.

[Illustration: CROSS SECTION OF POWER HOUSE IN PERSPECTIVE]

The plan of the power station included a method of supporting the
chimneys on steel columns, instead of erecting them through the
building, which modification allowed for the disposal of boilers in
spaces which would otherwise be occupied by the chimney bases. By this
arrangement it was possible to place all the boilers on one floor
level. The economizers were placed above the boilers, instead of
behind them, which made a material saving in the width of the boiler
room. This saving permitted the setting aside of the aforementioned
gallery at the side of the operating room, closed off from both boiler
and engine rooms, for the reception of the main-pipe systems and for a
pumping equipment below it.

The advantages of the plan can be enumerated briefly as follows: The
main engines, combined with their alternators, lie in a single row
along the center line of the operating room with the steam or
operating end of each engine facing the boiler house and the opposite
end toward the electrical switching and controlling apparatus arranged
along the outside wall. Within the area between the boiler house and
operating room there is placed, for each engine, its respective
complement of pumping apparatus, all controlled by and under the
operating jurisdiction of the engineer for that engine. Each engineer
has thus full control of the pumping machinery required for his unit.