Great Lakes E&I is a recognized industry leader in delivering infrastructure solutions including specialty civil construction, deep soil mixing, habitat restoration, dam and levee rehabilitation, and the construction of all types of subsurface cutoff walls and related features including slurry walls, biopolymer collection trenches, permeable reactive barriers (PRB), and In Situ mixing for soil improvement and stabilization. We offer specialty geotechnical services to isolate or divert groundwater, support structural foundations, and improve soil and material properties. These capabilities can be used for either civil or environmental applications.