Delta Hydro Engineers (Pty) Ltd
Robert Fortuin and Stephan Dreyer, Delta Hydro Engineers co-founders, standing together in hi-vis vests at a box culvert site inspection.

About

Delta Hydro Engineers (Pty) Ltd is a hydrology and hydraulics practice based in South Africa. We started as a flood and stormwater consultancy and have grown into a three-pillar business: defensible consulting work, flood risk intelligence for insurers, and custom software for water teams.

Across all three pillars, we hold the same line: methodology that survives technical review, coverage and capability described honestly, and deliverables that integrate with the way our clients already work.

Software & tools

We work across the leading hydrological, hydraulic, and civil-design platforms, integrated with GIS and custom tooling so modelling outputs stay repeatable and review-ready.

Flood modelling

  • PCSWMM (1D & 2D)
  • HEC-RAS (1D & 2D)
  • TUFLOW
  • FLO-2D

Hydrological modelling

  • HEC-HMS
  • XP-RAFTS
  • Storm Injector

Civil design

  • Civil Designer
  • AutoCAD
  • Civil3D

GIS & mapping

  • QGIS
  • Global Mapper

Water networks

  • EPANET

Programming

  • Python
  • Java
  • C++
  • Next.js