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Selection of Dam Site - Coggle Diagram
Selection of Dam Site
Physical
- High drainage density + a area with plentiful supply of water
- to ensure a consistently high volume of water in the reservoir so transferring water from another area is avoided
- Low temperatures+Narrow buy deep valley with smaller surface area
- This reduces the loss from evaportation
- Geologically stable area free from earthquakes or stubsidence
- will reduce the risk of damage or failure of the dam.
- Narrow cross section section of the valley
- is required to reduce construction costs of the dam, reducing the overall cost of the project.
- A site of impermeable rock
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Human
- Land which is to be flooded should not be valuable
- for example high quality farmland or of historic/environmental importance as this may anger people such as local natives
- Low costs involved in moving people who live in the area to be flooded
- to reduce costs for compensation and re-housing.
- Close to areas of farmland or urban areas
- would help to reduce water/electrical loss during transportation.
- Close to construction Materials
- Reduces cost of transporting materials to the contruction site