conical in shape, and reinforced with 1/2-in. twisted steel bars. The
design of the structure is clearly shown in Fig. 1.

The tower is built on out-cropping, solid rock. This rock was roughly
stepped, and a concrete sub-base built. This sub-base consists of a
hollow ring, with an inside diameter of 20 ft., the walls being 5 ft.
thick. It is about 2 ft. high on one side and 7 ft. high on the other,
and forms a level base on which the tower is built. The forms for this
sub-base consist of vertical lagging and circumferential ribs. The
lagging is of double-dressed, 2 by 3-in. segments, and the ribs are of 2
by 12-in. segments, 6 ft. long, lapping past one another and securely
spiked together to form complete or partial circles. These ribs are 2
ft. from center to center.

[Illustration: FIG. 1.--(Full page image)

WATER TOWER VICTORIA, B.C. WATER-WORKS]

Similar construction was used to form the taper base of the tower
proper, except, of course, that the radii of the segments forming the
successive ribs decreased with the height of the rib. Tapered lagging
was used, being made by double dressing 2 by 6-in. pieces to 1-3/4 by
5-13/16 in., and ripping on a diagonal, thus making two staves, 3 in.
wide at one end and 2-3/4 in. wide at the other. This tapered lagging
was used again on the 4-ft. belt and cornice forms, the taper being
turned alternately up and down.

[Illustration: FIG. 2.--FORMS FOR WATER TOWER VICTORIA, B.C.]

The interior diameter being uniform up to the bottom of the dome,