Sunken Concrete at Gwynedd Train Station

SEPTA (Southeastern Pennsylvania Transportation Authority) had settlement issues on two rail lines at a road crossing in Ambler, Pennsylvania. Quality 1st was able to lift the sunken slabs using the PolyLEVEL System. PolyLEVEL is a two-part urethane that, when combined, expands into a waterproof, rigid foam that is used to fill voids, stabilize slabs, and lift concrete. This before and after photo shows the sunken slabs before the PolyLEVEL System was used.