What is the approximate length of a standard moldboard on a USN road grader?

The approximate length of a standard moldboard on a USN road grader is about 12 feet. Moldboards are critical components of graders, designed to shape and redistribute surface materials during grading operations. A 12-foot moldboard is commonly used because it provides an ideal balance between maneuverability and the ability to handle large volumes of material efficiently.

This length allows the grader to tackle a variety of grading tasks, making it versatile for different types of road work, including leveling, sloping, and controlling water drainage. A larger moldboard may seem efficient but could hinder the machine's ability to navigate tighter spaces or perform intricate work. Therefore, 12 feet strikes an effective balance, ensuring the grader can perform optimally in diverse environments while still maintaining control and precision.