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Saturday, January 6, 1973
The principal works to be carried out under the second stage consist
mainly of the construction of a 2,580-foot tunnel and 47,000 square yards of
aircraft pavements above and adjacent to the tunnel works.
The tunnel will be a reinforced concrete box section divided into
two vehicular tubes and ventilation ducts. Each vehicular tube will accommodate
a two-lane carriageway with a width of 22 feet and a vertical clearance of
16 feet 9 inches.
The construction of the tunnel will be by the cut-and-cover method.
The work is so phased that airport operations can continue without
interruption.
Night Work
1
A government spokesman said it will be necessary to work at night
but every effort will be made to keep the noise level down to a minimum. In
fact, the contractor will be required to use sound-reduced equipment.
The tunnel is being constructed now so that the full length of the
extended runway can be put into operation by early 1975.
The contract will be signed on Monday (January 8) and Mr. J.R. Whitake
Director of Engineering Development, will sign on behalf of Government.
Tenders for the ventilation and administrative buildings, and the
supply and installation of electrical and mechanical equipment will be called
later in the year.
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Construction of the east and west interchanges will be carried out
later.
Note to Editors:
You are invited to send a reporter and/or photographer to cover the contract signing, which will be held at 11 a.m. on Monday in the Conference Room, Public Works Department, on the 7th floor, Murray Building, Garden Road.
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