Model a stormwater pond outlet control structure and download a plan-ready detail in seconds. Set the riser, trash rack, orifices, weirs, and outlet barrel — the tool draws a live 3D preview and four elevation views to drafting conventions, then exports a true vector PDF suitable for underlaying directly in CAD: crisp at any zoom, selectable text, real linework — not a raster screenshot. Every line is drawn from your elevations: inverts land where you put them, weirs cut the silhouette, and callouts carry the numbers you entered. No sign-up, no install — it runs entirely in your browser. The tool draws geometry and elevation text only; hydraulic and structural design remain with the engineer.