They’re the front line in defending British Columbia from flooding – but no one can agree who’s responsible for them. Dikes, levees, whatever you want to call them, we need them. But there are over 100 in B.C. that are “orphaned” – and when the next flood comes, the people behind them could be in trouble.The Globe’s Justine Hunter toured one of these “orphan dikes” with flood-management engineer Tamsin Lyle. They discussed where these dikes came from, what needs to happen to fix them and what we risk if we do nothing.