Latvian Border Project: Wooden Pathways with 19,500 Helical Piles

Paalupiste was entrusted with a critical border security project owned by the Latvian Government. The goal was to improve border patrol infrastructure by building long wooden pathways in extremely soft, swampy terrain. The project required more than 19,500 helical piles, with pile lengths ranging from 2 to 17 metres.

The site conditions were the key challenge. The thick swamp layer made traditional foundation methods impractical, and other piling methods carried a high risk of machinery getting stuck in the soft ground. Helical piles were the only viable option because they can be installed with light equipment, with minimal site disturbance, while still delivering reliable load capacity.

To ensure a safe and cost-efficient solution, Paalupiste carried out test pilings in several locations and analysed pull-out test results to define an optimal pile design. This approach ensured the pile size was reliable while avoiding unnecessary oversizing and cost.

Paalupiste installed part of the piles using our own team, and worked closely with local contractors by providing Digga installation equipment to support efficient installation. After piling, custom-made U-brackets were attached to the pile tops, enabling straightforward and fast assembly of the wooden structures.

This project highlights Paalupiste’s ability to deliver reliable helical pile solutions in extreme ground conditions, including large international and government-owned projects, where speed, safety, and proven performance matter.