Why is it important to mark utility lines before excavation?

Marking utility lines before excavation is crucial primarily to prevent damage to those utilities and ensure safety during construction activities. When excavation occurs without this precaution, there is a high risk of striking underground utility lines, which can lead to service disruptions, economic losses, and even hazardous situations, such as gas leaks or electrical hazards. By accurately marking these lines, workers are informed of the precise locations of utilities, allowing them to plan their excavation activities around these critical infrastructure elements, thus protecting the workers and the public while maintaining the integrity of utility services. This preventative measure is a standard practice that enhances overall safety in construction and excavation operations.