Vertical Shaft Services, Tunnels & Drilling in Ohio

Machine finishes 4.5 mile tunnel for Columbus sewer project

Take an underground look at Akron's $184 million Ohio Canal Interceptor Tunnel

Tunnel Update - October 2021

Deep Foundations – Goettle

Precise Boring of Ohio - Horizontal Directional Drilling of Ohio

Vertical Shaft Services, Tunnels & Drilling in Ohio

2015 HORIZONTAL DIRECTIONAL DRILLING GUIDE

Project Clean Lake Tunnels - Herrenknecht AG

Vertical Shaft Excavation

Westerly Storage Tunnel Shafts - Brierley Associates

The 2022 North American Microtunneling Job Log

Trenchless Technology's 2018 North American Microtunneling Job Log