Quote:
Originally Posted by jeremy_haak
Does anyone know what the expected life span is for the elevated structures on the Skytrain?
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I recall someone telling me once that all SkyTrain structures are built to something like a 70/100 rule: 70 year design life, 100+ year structural life. As the system approaches the end of its design life they will need to do substantial upgrades but the thing itself still has several decades of structural life left in it.