Question

define rock dam?with explination.

Answer 1

A rock embankment constructed across a drainageway or other suitable location to create a temporary basin for collecting sediment.

Purpose

To trap sediment on the construction site and prevent off-site sedimentation. Useful where earth fill material is not readily available.

Where Practice Applies

Where a temporary measure is needed to retain sediment from a construction area -but not in a natural stream.

Answer 2

$\huge \star \purple {AnsWer}$

• Small barriers or dams constructed of stone, bagged sand or gravel, or other durable material across a drainage way. Purpose: To reduce erosion in a drainage channel by restricting the velocity of flow in the channel.

• Rock-fill dams are one of two types of embankment dams, the other being earthen dams. These structures are effective because the force of the river or reservoir hits the impervious zone and is transferred to the firmly packed transition zone where water can slowly begin to filter through the dam.

Take thanks❣️=> Give thanks❣️

$<marquee behaviour-move><font color="blue"><h1>Mark Me As Brainlist</h1></marquee>$

$\red {Thank \:You}$