Foundation Repair & Radon Mitigation Contractor in Essex County, MA

The Blynam Canal Drawdridge had a retaining wall which was gradually having the soil underneath its footing washed away by the tides rising and falling. Upon excavating down to install a new foundation for a structure above, the DoT found huge voids underneath the wall, leaving the wall susceptible to sinking and allowing water to overflow. They needed a stronger base for their new structure, one that wouldn't be at risk of being washed away by the tide.

The DoT hired Erickson Foundation Supportworks to come in and fill the voids under the wall with PolyLEVEL. We first inserted pipes into cracks and crevices within the stones and wall, allowing us to spray in PolyLEVEL deep into the voids on the water side of the canal. On the retaining wall side, we sprayed in PolyLEVEL into the voids under the wall and between all the large stones on this side.

Although the water table could still rise up with the tide, it could no longer wash in and out with the waves or ebb of the water. Therefore, the water can no longer wash out the supporting soils, or PolyLEVEL, under the retaining wall. The wall is now fully supported and no longer at risk of sinking or failing.