01-40_WC_149_JUL-AUG26_PT - Flipbook - Page 16
TOP 50 PROJECT
“Astudyinthe1990sdemonstratedthatourmajor
marinecrossingswouldnotperformwellduring
amajorearthquake.Notonlywouldthesemarine
crossingsbeunabletowithstandaone-in-10,000yearearthquake,theywouldactuallyfailinthe
eventofaone-in-475-yearearthquake.”
The Annacis Water
Supply Tunnel is 2.3
kilometres long and
it was excavated
using a tunnel boring
machine. The machine
was launched from the
entry shaft in Surrey
and was removed from
the exit shaft in New
Westminster.
16
WATER C AN ADA • JULY/AUGUS T 2026
WATERCANADA.NE T
