19/05/2026
Throwback Tuesday: drilling an S-curve under busy streets in Switzerland with minimal space.
A year ago, we teamed up with Huber Leitungsbau for this complex HDD project in Switzerland. The goal was clear: minimize disruption to the urban environment. While daily life continued as normal above ground, the drill crossed four railway tracks and a pedestrian tunnel underground. Thanks to our advanced Drillguide Gyro Steering Tool, the new water pipeline was installed accurately and with minimal disruption beneath the center of Stรคfa.
Want to know more? Read all about this project on our website: https://drillguide.com/projects/precision-drilling-in-switzerland-s-curve-under-busy-streets
๐ Location: Stรคfa, Switzerland
๐ Length: 332 m / 1089 ft
๐ Angles: -17ยฐ entry, 15ยฐ exit
โคด๏ธ Horizontal curve: 17ยฐ right + 12ยฐ left
๐ Key challenges: S-curve, high interference, narrow margins
๐งญ Guidance: Drillguide Gyro Steering Tool & GPS track