Public gatherings will be held this week on two major transportation projects that will cost big bucks — though the funding for them has yet to be firmed up.

Meetings will be held Tuesday, Wednesday and Thursday in St. Louis on a proposed Northside-Southside expansion of MetroLink with a price tag of several hundred million dollars.

Possible Northside-Southside MetroLink routes

A map of the MetroLink expansion routes under consideration in St. Louis, along with existing lines, from the East-West Gateway Council of Governments.