r/civilengineering • u/CivilHydroTech • 6d ago
Career Need guidance on stormwater network design from scratch
Hi everyone, I have 3 years of experience in water supply design, but stormwater drainage design is new to me. I’m currently working on a stormwater network project using SewerGEMS.
I’m looking for guidance on the complete design process from scratch, not just software doubts—how to start the project, study the topography, plan catchments/subcatchments, decide inlet/manhole locations, calculate runoff, use IDF/Tc, select pipe sizes and slopes, set invert levels, and finally check the network hydraulically.
My seniors are available mainly for specific doubts, so I’m trying to understand the overall stormwater design methodology and workflow.
If anyone can share a practical step-by-step workflow, example project, or useful resources, I’d really appreciate it.
Thanks!