Color-coded flags and markings are a crucial aspect of underground utility location and damage prevention. These visual cues provide a standardized system for identifying the type of underground infrastructure present at a specific location, such as electrical lines, natural gas pipelines, water mains, or telecommunications cables. For instance, red typically signifies electrical power lines, while yellow indicates gas, oil, steam, petroleum, or gaseous materials.
This standardized system significantly reduces the risk of accidental damage during excavation or construction activities. By understanding the designated color codes, workers can exercise caution and implement appropriate safety measures around buried utilities. Adherence to these color codes helps prevent costly repairs, service disruptions, and potentially life-threatening accidents. The system is a product of decades of development and refinement, with ongoing efforts to maintain clarity and consistency across different regions and industries.