A counter berm is A. A horizontal benching provided on the inside slope B. A horizontal benching provided on the outside slope C. A vertical benching provided on the outer edge of the bank D. A vertical benching provided on the inner edge of the bank

A horizontal benching provided on the inside slope
A horizontal benching provided on the outside slope
A vertical benching provided on the outer edge of the bank
A vertical benching provided on the inner edge of the bank

The correct answer is: A counter berm is a horizontal benching provided on the inside slope.

A counter berm is a type of embankment that is used to control erosion. It is typically constructed on the inside slope of a bank, and it helps to prevent the bank from collapsing. Counter berms are often used in conjunction with other erosion control measures, such as riprap and gabions.

Here is a brief explanation of each option:

  • Option A: A horizontal benching provided on the inside slope. This is the correct answer. A counter berm is a horizontal benching provided on the inside slope of a bank. It is typically constructed of stone, concrete, or earth, and it helps to prevent the bank from collapsing.
  • Option B: A horizontal benching provided on the outside slope. This is not the correct answer. A counter berm is not typically constructed on the outside slope of a bank.
  • Option C: A vertical benching provided on the outer edge of the bank. This is not the correct answer. A counter berm is not typically constructed as a vertical benching.
  • Option D: A vertical benching provided on the inner edge of the bank. This is not the correct answer. A counter berm is not typically constructed as a vertical benching.