Question

What is the meaning of rock dam

Answer 1

HERE IS UR ANS.
Small barriers or dams constructed of stone, bagged sand or gravel, or other durable material across a drainage way. 

Answer 2

Answer:

Rock dams are Small dams made up of stone, bagged sand or gravel, or other long-lasting material through drainage.

Explanation:

• The main purposes of these lands are reducing erosion in a drainage channel by limiting the channel flow velocity.
• And these can be used for storage purpose that can be distributed evenly between sites.
• Dams usually serve the main purpose of water retention, while other buildings such as floodgates or levees are used to handle or stop the flow of water into particular areas of soil.