Top of concrete arch dam with reservoir

Baish Dam

The Baish Dam is a gravity dam on Wadi Baish about 35km northeast of Baish in the Jizan Region of south-western Saudi Arabia.

The dam has many purposes including flood control, irrigation and groundwater recharge. The total reservoir capacity of the dam is 192 million m3.

The dam was constructed between 2003 and 2009 and at 106m high on completion, it was the tallest dam in Saudi Arabia. It is owned and operated by the Ministry of Water and Electricity.

Baish dam is one of six dams currently undergoing the change from a manual to a fully-automated monitoring system.

The original instrumentation equipment was installed during construction and was entirely manually-read. The Ministry made the decision to upgrade the instrumentation to a modern automatic system including full data logging of all instruments together with alarm trigger levels and data access via the Internet.

Project Summary

  • Name
  • Baish Dam
  • Location
  • Kingdom of Saudi Arabia
  • Date
  • 2016
  • Client
  • Ministry of Water and Electricity
  • Instrumentation Specialist
  • Triad Technical Services
  • Consultant
  • Geosense


After consultation with Ministry Engineers, Geosense designed a system installing new instruments side by side with the existing instrumentation and upgrading several areas to provide a fully integrated and automatic dam safety monitoring system.

All the new instruments were connected into a data logging system and provide real-time visualisation within the dam control room.

The dam integrity is carried out by monitoring key areas as follows:

  • Main dam body Inclination
  • Galleries Expansion joints Seepage
  • upstream pore water pressures Downstream pore water pressures
  • Dam main drain Seepage
  • Dam reservoir Water level
  • Dam abutments Settlement
  • Seismic monitoring