A reputable tunneling contractor ran into trouble when their TBM failed short of completing a river crossing. The river crossing was one of many trenchless crossings needed to complete much needed upgrades to one of the oldest water reuse systems in the world. Willco was called in to ram 100' of 84" casing from the other end of the project to rescue the stranded TBM

Ground conditions were wet running soils mixed with small cobble and river rock.

The TBM is just in sight at the back of the casing. Crews prepare to install the final piece of casing to allow us to sleeve the TBM and retrieve it.

The casing is hammered to a point just past the TBM which is now fully visible.

After surrounding the stranded TBM, the process of removing the machine begins.

The TBM finally above ground.