In a Vancouver council meeting, city staff have proposed a storm-surge barrier to protect False Creek’s coastline at a cost of $800 million.
Senior sustainability specialist with the city, Tamsin Mills, told councillors that the local sea level is expected to rise by one metre by the year 2100 and two metres by 2200.
Mills says that an idea like the storm-surge barrier would be an effective way to protect low-lying land.
“A sea barrier would go near the narrows of False Creek, somewhere near the Burrard Street Bridge. It would be closed three to four days a year when it’s built towards the end of the century, and of course, those closures would increase over time.”
But the barrier would cost up to $9.5 million per year to maintain, according to Mills.
“Benefit is that it’s one piece of infrastructure, with limited impacts to public space or private buildings. It would need a lot of maintenance, given the moving parts and we would need to build it to a certain level, so the amount of adaptability is questionable.”
Flood gates have also been presented as a way to protect the coastline.