DYL – Double Yellow Line

What is DYL – Double Yellow Line?

Definition of DYL – Double Yellow Line in Construction

This is a designation used on siteplans to identify the location of a double yellow line. In most cases, this designation is located in a road or highway, adjacent to the construction project. The DYL is a commonly missed designation that will confuse many contractors due to the fact that the sitework plans are many times not that well developed and described.