Drainage easements are a critical but often overlooked component of site development. They provide dedicated space for stormwater to flow safely through and around a property without impacting structures or adjacent sites. Poor planning around easements can lead to redesign, permitting delays, and long-term maintenance issues.
According to the FEMA Floodplain Management Guidelines, preserving drainage paths and maintaining adequate conveyance capacity helps reduce flood risk and protects surrounding development. In practice, this means engineers must carefully evaluate offsite flows, existing channels, and proposed improvements early in design.