Profile: Contech Engineered Solutions LLC is a manufacturer of bridge, drainage, earth stabilization and storm water solutions. We provide steel, aluminum, geo-synthetic and plastic construction products. Helically corrugated HEL-COR steel pipe is manufactured with continuous locked seams with annular corrugated ends to use with soil-tight HUGGER® bands. Typical applications are culverts, storm water detention systems, small bridges, and storm sewers.