Which Design Standard drawing number sets forth removal of organic material requirements?

Which Design Standard drawing number sets forth removal of organic material requirements?

• A. Design Standard 500
• B. Design Standard 450
• C. Design Standard 600
• D. Design Standard 350

Answer: (A)

The key idea here is recognizing which design standard governs site preparation steps, specifically removing organic material before earthwork. Organic matter like topsoil, roots, and vegetation can weaken bearing capacity and affect drainage, so there’s a designated standard that spells out how much material to remove, how to handle it, and how to dispose or reuse it. That standard is the one that covers earthwork preparation and the removal of organic material, so it’s the correct reference for this requirement. The other design standards focus on different topics (such as drainage, pavements, or structural details) and do not specify the organic material removal rules.

The key idea here is recognizing which design standard governs site preparation steps, specifically removing organic material before earthwork. Organic matter like topsoil, roots, and vegetation can weaken bearing capacity and affect drainage, so there’s a designated standard that spells out how much material to remove, how to handle it, and how to dispose or reuse it. That standard is the one that covers earthwork preparation and the removal of organic material, so it’s the correct reference for this requirement. The other design standards focus on different topics (such as drainage, pavements, or structural details) and do not specify the organic material removal rules.