Rain Gardens: Placement Matters More Than Square Footage The Canadian capital of Ottawa was bombarded with 167 millimetres of rain in five hours earlier this summer in what the city called a one-in-200-year event. Close to 5,800 basement-flooding reports followed, and the worst of it hit the city’s west end, including the Crystal Beach neighborhood. The Conversation Wed, 09/02/2026 - 16:18 Categories Environment