Safe digging starts with understanding how to correctly identify underground facilities. By following the CGA Marking Standards, we ensure that each facility is marked according to the type of service it provides, using a specific color code.
When you see markings, you’ll notice:
- Appropriate Color: Each color corresponds to a different type of underground facility which helps in identifying what lies beneath.
- Company Identifier: Look for the name, initials, or an abbreviation to know which company owns the facility.
- Facility Details: The total number of facilities and their sizes are indicated, along with a description (e.g., HP for high pressure, FO for fiber optic).
- Marking Tools: Paint, flags, stakes, whiskers, or a combination thereof are used for clear visibility.
Chapter 319.015 (7) states that “Marking,” emphasizes using paint, flags, stakes, whiskers, or a combination of these to indicate the field location of underground utilities or the area of proposed excavation. The standard follows the Common Ground Alliance Best Practices Version 10.0, highlighting that the “approximate location” must be within a strip not wider than the utility plus two feet on either side. However, in complex situations, a broader area might be marked to ensure safety.
These markings are not just guidelines—they are crucial for preventing damage and ensuring the safety of everyone involved in excavation projects.
