Selected project examples

Master Plan for Water Recycling for the City of Riyadh, Saudi Arabia


The Arriyadh development authority commissioned Fichtner Water & Transportation with the development of a master plan for the use of the rare resource “water”. For the design horizon of 25 years the effective and sustainable use of treated sewage effluent (TSE) was to be determined in particular. At the end of the examined period, the available quantity of treated sewage effluent will amount to 2 million m³/day, which is more than the former consumption of drinking water.

Fichtner services

  • Baseline investigations
  • Economic/financial study
  • Socio-economic study
  • Subsoil investigation
  • Sampling and analysis
  • Hydrogeological studies
  • Hydraulic investigations
  • Master plan
  • Pre-feasibility study, preliminary design

Technical data

  • Available quantity of TSE: 2 million m³/day until 2030
  • Present drinking water consumption: 1.4 million m³/day for 6.8 million inhabitants
  • Length of the main lines (Ø 1300 - 2500 mm): 185 km
  • Length of secondary lines (Ø 600 - 1000 mm): 203 km


Arriyadh Development Authority (ADA), Riad, Saudi Arabien