Class 4 line locations for Highway and RR crossings must be inspected how often?

Class 4 line locations for Highway and railroad crossings require inspections every 4.5 months, but at least four times per calendar year. This frequency is established to ensure that the integrity of the pipeline in these high-risk areas is maintained, as highway and railroad crossings can be particularly susceptible to damage and wear due to the heavy traffic and environmental conditions they experience.

This requirement aims to identify potential issues such as ground movement, corrosion, or any other factors that could affect the pipeline's safety and operational status. Regular inspections allow for timely detection and remediation of any problems that could lead to dangerous situations, ensuring compliance with safety regulations and protecting public safety.

The frequency of inspections also balances the practical realities of pipeline maintenance with the need for vigilance in monitoring areas that pose higher risks, thus encouraging the development of robust preventive and response strategies.