AGRICULTURAL Haviland Drainage Products is located in an agricultural community. Therefore, we understand the necessary standards and competitive requirements of the agricultural market. COMMERCIAL & RESIDENTIAL Haviland Drainage Products has been part of the commercial & residential markets for many years. Put our history and knowledge to work for you! HIGHWAY Haviland’s Heavy Duty Highway & SmoothFlow pipe conform to rigorous testing and standards; AASHTO M-252, AASHTO M-294, & ASTM 2648 to name a few.