CONTECH is a national producer of vehicular and pedestrian bridges; corrugated steel, aluminum and plastic pipe; metal plate structures; segmental concrete walls; and, geosynthetic and hard armor products for the highway, drainage, sewage and site-improvement markets. Innovative applications for bridges, tunnels, stormwater detention/retention systems, stormwater treatment and drainage, sewage lines, retaining walls and erosion control begin at CONTECH.