Cross-country pipelines are mostly underground and hence they are invisible. This is the reason why they don’t get their due recognition from the general public regarding the amount of contribution that is being made by the pipelines in terms of economic growth and security of any nation. These are the lifelines of the nations. Therefore, to start with, the advantages of cross-country pipelines over conventional transportation such as by road, rail, or shipping, are covered to bring awareness about the importance of these pipelines among the learners. Next, the activities involved in standard pipeline construction starting with ‘Right of Use’ or ‘Right of Way’ are covered. There is a sequence of activities involved in cross-country pipeline construction. Right of Way, Clearing, Grading, Stringing, Trenching, Lowering, Backfilling, Tie-in, Welding, Bending, Non-destructive testing, Field joint coating, Cathodic protection, Special installation on pipelines like Markers, and Cleanup are the activities discussed in detail in this specific module. The equipment and crew that are needed to perform these activities are specified so that learners can realize the type and gravity of each activity, and the quantum of work involved in each activity. Corrosion of pipelines is one of the threats posed by underground cross-country pipelines. Cathodic protection is an effective method of protecting buried pipes and ensuring pipeline integrity. The technique, design considerations, and major components of the cathodic protection system are covered. Open-cut method and its limitation while routing the pipelines across the obstacles and within urban areas are discussed. Types of Horizontal Earth Borings and how a tunnel is formed underneath the obstacle using the Horizontal Directional Drilling technique are covered. Key features, functions, and advantages of the thrust boring are explained. How the thrust boring is different from Micro-tunneling is also covered. Finally, several strategies to repair the leaks in the pipeline, what is hot tapping and its importance, and the hot tapping construction are meticulously covered in this specific module.