| Type | Water Pipeline |
| Material | HDPE |
An HDD (Horizontal Directional Drilling) pipeline is a method of installing underground pipelines without open-cut excavation, which allows them to be installed under obstacles like rivers, highways, and railroads. This trenchless technology uses a pilot bore to create a tunnel, which is then widened to the required diameter before the final pipeline is pulled through. It is a cost-effective and environmentally friendly technique that minimizes surface disruption and is used for installing water, sewer, gas, and fiber optic lines.