Electrical news and engineering . ted on concrete footings where rockis not available. The crossing of about one mile of muskeg presentedsome difficulty, and it was found necessary to drive piles toa depth of from fourteen to sixteen feet to rock or impene-trable strata, on which the concrete cap, constituting thefooting for the towers, was poured in position. The spans forthis portion of the line were increased to slightly over 1,000feet to reduce the numiber of footings, and steel reinforcedaluminum cable has been used in place of all aluminum. .\special design of towers with a wide base was
Electrical news and engineering . ted on concrete footings where rockis not available. The crossing of about one mile of muskeg presentedsome difficulty, and it was found necessary to drive piles toa depth of from fourteen to sixteen feet to rock or impene-trable strata, on which the concrete cap, constituting thefooting for the towers, was poured in position. The spans forthis portion of the line were increased to slightly over 1,000feet to reduce the numiber of footings, and steel reinforcedaluminum cable has been used in place of all aluminum. .\special design of towers with a wide base was adopted atthis point. Fairville Switching StationThe switching station at Fairville, is built of granite-faced concrete blocks. A steel superstructure is mounted onthe roof of the switching station to accommodate emergencyair break switches, for the purpose of sectionalizing the trans-mission line in the event of trouble occurring, should theline at any future time be extended beyond St. John towardsthe east. THE ELECTRICAL NEWS. Musquash Development—General view c£ east branch intake dam and gate house
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