GAH-3D Web Application

📐 Design Preview

Live 2D section & plan. Updates as you edit geometry, groundwater and hydraulic structures — before you run. After a run, the section shows the critical ponded water level and peak groundwater mound.

Click the map to set your site location, configure your
catchments and soil parameters, then press Run Analysis.

Results Summary

Critical Event	Duration & Rank	Peak Vol (m³)	Peak Depth (m)	Peak Mound (m)	Exceeds Allowable?	Spilled Vol (m³)

Select Duration:

Maintenance Planning — Clogging Impact Timeline

Full multi-year analysis with groundwater mounding — for maintenance scheduling.

Required, not optional. The basin must be designed for its end-of-life (clogged) performance. Agree the clogging parameters (K, thickness) and timeline (years) with the asset owner before running.

Analysis Years

Final Clogged K (m/day)

Final Clogged Thickness (m)

AEP	Duration (min)	Temporal Pattern	Peak Flow (m³/s)	Volume (m³)	Time to Peak (min)

GAH-3D

📐 Design Preview

Results Summary

Maintenance Planning — Clogging Impact Timeline

Clogging Analysis Results

Selected Year Dashboard