Functions of DWIR


Hydrographic Survey Section

    • Channel surveying and mapping
    • Surveying and technical suggestions for waterways of the cross river bridges
    • To provide technical suggestions from river engineering points of views at construction of cross river bridges.

River Engineering Section

    • Construction of river training structures to achieve adequate water depth
    • River bank protections
    • River training and bank stabilization for the long term existence of the cross river bridges.
    • Bank protection of Border Rivers.
    • To utilize the river water for agriculture all the year round.

Dredging Section

    • Dredging in river constraints
    • Bend cutting for improvement of waterways and erosion protection
    • Dredging to improve approach channel for pump irrigation
    • Dredging for new navigation channel

Navigation Section

    • Provision of navigation aids.
    • Promulgation of navigation warning
    • Snag removing
    • Monitoring and marking of approach channels for the cross river bridges according to seasonal changes.
    • Administration of Twantay canal navigation.


Hydrological Research and Planning Department

  • Establish the data banks to support the river training works.
  • Predict the Least Available Depth along the inland rivers
  • Execution of research for the river training activities
  • Monitor the environmental impact by the changes of water quantity and quality
  • Develop the yearly, monthly and daily water level hydrographic envelopes