A string of orange flags in a construction site indicates the presence of an underground ________.

A string of orange flags in a construction site indicates the presence of an underground ________.

• A. Fiber-optic communications cable
• B. Natural gas line
• C. Water pipe
• D. Electrical conduit

Answer: (A)

Underground utility markings use color coding to tell crews what type of utility is buried there. Orange marks indicate telecommunications infrastructure, including fiber-optic cables. That’s why the string of orange flags signals the presence of fiber-optic or other telecom lines underground, so dig crews know to avoid or carefully work around them to prevent service outages and damage. In contrast, other common colors help identify different utilities: for example, yellow marks gas lines, blue marks potable water, and red marks electric power. Always verify with utility maps and call before you dig to ensure you locate all underground lines.

Underground utility markings use color coding to tell crews what type of utility is buried there. Orange marks indicate telecommunications infrastructure, including fiber-optic cables. That’s why the string of orange flags signals the presence of fiber-optic or other telecom lines underground, so dig crews know to avoid or carefully work around them to prevent service outages and damage. In contrast, other common colors help identify different utilities: for example, yellow marks gas lines, blue marks potable water, and red marks electric power. Always verify with utility maps and call before you dig to ensure you locate all underground lines.