When building a zonal embankment dam, various materials are piled or zoned, with each zone serving a specific purpose. The core, which is often made of impermeable materials like clay, prevents water seepage. This core is surrounded by zones of more permeable materials that promote stability and drainage. The key advantages include flexibility in design, affordability, and adaptability to shifting foundation conditions. However, meticulous preparation is required to ensure adequate compaction and prevent seepage. Because each zonal layer's integrity is essential to the dam's functioning, maintenance may be necessary on a large scale. They are widely used in regions with a lot of soil and problems with seismic stability.