ADA was established in 1937 to watch over and support the interests of drainage authorities at a national and parliamentary level, provide a forum for the exchange of ideas and discussions, and disseminate information of common interest.

Our members include Internal Drainage Boards (IDBs), the Environment Agency, Regional Flood & Coastal Committees (RFCCs), and the Northern Ireland Rivers Agency. ADA also has Associate Members who are consultants, contractors or suppliers to the water level management industry or local authorities. For information about becoming an Associate Member (please download flyer below for more details).

Currently, the Association's President is Lord De Ramsey, Henry Cator OBE is Chairman, and Jean Venables CBE is Chief Executive.

• supports our members and their work;
• facilitates the exchange of ideas amongst the industry;
• responds to, and works with Government in support of members;
• has regional ADA Branches across England and Wales;
• two policy and technical committees to assist members’ work;
• publishes the ada gazette four times per year;
• publishes the ADA News Stream, a monthly email to Members on key issues and topics;
• represents the interests of members nationally and locally;
• shares information on matters of importance and interest to members;
• provides assistance on technical and administrative problems;
• organises national conferences and workshops for members;
• organises major exhibitions and demonstrations (ADA Demo 2013);
• publicises the work of our members;
• links Members with Europe's other water level managers through ADA's membership of EUWMA, the European Union of Water Management Associations;
• collaborates with other organisations;
• publishes industry reports, bulletins, guidance;
• arranges visits to places of interest.