Water

Dams and Development E-Paper Contents

p. 42 of 74 BACK | NEXT Home Page of Dams and Development Foreword I. Why an e-paper on dams and development? II. Assessing options III. Participatory processes IV. Social impacts V. Environmental impacts VI. Benefit distribution What benefits can be shared? Distribution analysis Secondary benefits What do ADB polices say? VII. Dam safety and sustainability VIII. Existing projects IX. Improving governance X. What other organizations say XI. ADB, Dams, and Development XII. References Contact Us

Secondary benefits - what are the multiplier effects?

Benefits of a project can be divided into the primary outputs, (for example electricity generated by hydropower; irrigated agriculture; bulk water supply for domestic industrial and municipal use; areas with reduced risk of flooding; and recreation) and secondary or multiplier effects.

Secondary effects are more difficult to quantify and depend on the nature of the project. They can include improved access to water for other household needs, improved health conditions, reservoir fisheries, increased local economic activity, improved access to markets via access roads, employment in construction and tourism, recession agriculture in the reservoir margins, recreation, etc.

For further information on specific projects, see:

• Secondary benefits quantified in Sri Lankan irrigation
• Study on Multiplier Effects of Dams

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