Department Structure & Sub-departments

 

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Planning & Regional Management

Planning Branch                                                                                                         
Designs Branch                                                                                                 
Environment Branch                                                                                              
Computer Services branch                                                                                  
Engineering Geology Branch                                                                                
Engineering Materials Branch                                                                                
Hydraulics Branch                                                                                                
Hydrology Branch                                                                                                        
Land Use Division

Functions of the Planning, Designs and Specialized Services Sub-department

Investigation, Planning and Design of infrastructural elements for water resources development for irrigation and flood control.

Planning Branch

Conducting out water and land resource assessment studies to identify development possibilities in selected river basins for irrigated agriculture, drainage, flood protection, hydropower development and for other water uses.
Preparation of project concepts, pre-feasibility studies, feasibility studies for identified development possibilities.

Designs Branch

Detailed investigations and final formulation of major irrigation, drainage and flood control projects.
Detailed designs of headworks and water conveyance systems of major irrigation projects including preparation of construction drainage, bills of quantities, estimates and specifications.

Hydrology Branch

  1. Measures hydrological parameters island wide. Rain Gauges Stream Gauges Evaporation Pans  Sun shine recorders are used for this.

  2. Calculates the water availability from data

  3. Forecasts Floods.

Engineering Geology Branch

Foundation investigation by diamond core drilling Treatment of foundation by cement grouting.                                                                                                                              Strengthening of earthen embankment and foundations by clay grouting. Strengthening of spillways and other concrete structures by cement grouting.              Arresting of leaks through hydraulic structures by shot creating.  Assisting the dam safety division in monitoring the dam foundation behavior and carrying out remedial measures.        Service other Government department and statutory organizations.

Engineering Materials Branch

Surveys to determine quantity and quality of materials of construction of earthen and concrete structures.
Ensuring quality standards in the construction of earthen and concrete structures.
Designing of earthen dams. Investigation for suitability of foundation for earthen concrete structures and buildings. Investigation of and proposing remedial measures for earthen dams in distress. Conducting  laboratory tests on construction materials. Undertaking investigations to determine quality and quantity of construction materials (for other organizations  on requests.)

Hydraulics Branch

Assisting the Design branch of ID by carrying out model studies. Carrying out research work related to the Hydraulics for application in Irrigation, Drainage, Flood Protection Hydropower projects and river management.
Advice and assistance to Dam Safety Unit. Repair and services of scientific instruments. Work related to exhibitions and photography.

Land Use Branch


Functions :

Soil Surveys at National, Regional and Project level. Land capability classification. Land suitability evaluation. Land allocation for Agriculture, Settlements and other purposes.
The information is used in the calculation of field and project irrigation water requirements, feasibility studies, detailed project planning and designs and environment impact assessments.

Category 2
Water quality analysis. Soil moisture investigations. Infiltration studies. Evapotranspiration calculations. Ground water investigations.
For irrigation planning, field and project water management, catchments management and the formulation of water conservation strategies.

Regional Development & Construction Sub department

Regional Development and Construction

Construction of all major and minor reservoirs, diversion weirs and related structures for water delivery and agricultural development in the down stream areas.
Foreign funded projects HIR project, SADP,Mau Ara, Weli Oya Irrigation Project.
Itemized works, CIAD project in 14 ranges.  Any other major projects in the ranges funded by other agencies

Machinery and Workshop branch

The branch provides the services of Maintenance of machinery vehicles and equipment. Repairs of Machinery, vehicles and equipment. maintenance of electro/Mechanical installation. Assist civil engineering construction work where machinery and equipment needed. Preparation of specification for procure and checking the conformity after supply.



Assets Management & Water Management  Sub department

Functions of the Assets Management & Water Management  Sub department

Operation and management of all major irrigation schemes including the institutional strengthening  in major irrigation systems.

Irrigation Management and Operation Branch

Responsible for Water Management. Participatory irrigation management and Institutional development. Farm productivity Improvement. System Technology Improvement. Rehabilitation and Upgrading systems.

Assets Management Branch

Management of assets of the Irrigation Department including gravity and lift irrigation schemes and buildings.

Dam Safety Branch

Responsible for Evaluating  and significance of potential of dams and related structures. Implementation of appropriate measures to reduce risk to protect people and property and agricultural downstream.
Strategic planning, guiding and directing field staff on prospective measures and modification of head works. Complication of scheme data and information on historical events. Assessing rating works to select to proper rate safety protection. Reviewing period is inspections done by field officers and stream in lining the information for annual work plan. Coordinating with specialized services division in ID and utilized organizations for advices in critical cases. Coordinating of corporate dam  safety activities with MASL, CEB and provincial councils which h.. those river basins. Directing the field staff to preparation and completion of emergency action plan.

Training

In service training at Galgamuwa Irrigation Training Institute. In-service training in Irrigation Department Head Office and other institutions. Conduct examinations for the staff of he Irrigation Department.

Plan Implementation Branch

Preparation of the capital budget of the department for successive years and long term financial and physical programs. Preparation of Implementation program according to the guideline given by the Plan Implementation Ministry at the beginning of each financial year. Monitoring of monthly implementation program during the year according to the program prepared at the beginning of the year. Submission of progress reports in the required format to the Ministry of I & WM, National Planning Department and to the Ministry of Plan Implementation. Preparation of Administration reports and annual plans.

Human Resources sub department

Functions - General Administration. Recruitment of non technical grades. Training of non technical grades. Policy matters in administration. Disciplinary control and inquiries. Public relation and welfare matters.

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