← All assets · 3D models D Drainage Sump (Hydroelectric Dam Infiltration) Download GLB (243 KB) Concrete drainage sump with raised metal grating and open collection void beneath. modernrealistickit CC0 — free for any use, no attribution required Type3D model CategoryProps Triangles3.3k StyleRealistic FormatGLB Size243 KB LicenseCC0 SourceCollected by EarthOnline