Understanding how water moves across and around a site can help identify potential flooding concerns before development begins. A drainage assessment considers the current state of affairs, water flow on the surface, drainage systems, and flooding routes that may impact the land. Reviewing the drainage system can also highlight areas where water may collect or discharge during heavy r... https://floodrisk-drainage.co.uk/blog/drainage-assessment-and-its-role-in-flood-risk-planning/