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Video Conference

Concrete Manholes and Inlets: Design, Production and Installation

  • Feb 19, 2019 (9:30 - 12:30 pm CT; 8:30 - 11:30 am MT)
    Video Conference (designated rooms at DOT sites)


DEADLINE: Tuesday, February 12, 2019

The above opportunity and more can be accessed by visiting the TLN Learning Management System (LMS).


Production facilities vary in standard forming and abilities to make special components for storm and sanitary applications. Learn the criteria that are common in local plants and the broad range of specials that can be built. Pipe to structure connections are key to the life of a street or roadway. Learn about available options.

Manholes and inlets are critical street and roadway components. Key learning points include:

• Production methods • Liners • Shop drawings • Shape options - round, rectangular and other • Booted connections – options • Survey checks • Castings • Grouted connections • Installation tips • Loadings • Pressurized systems • Production timelines • Knockouts • Common errors • Handling • Drop structures • Water, sanitary and petroleum design factors • Coatings • Special inlets • Joint options • Pipe ods – info • Wraps • Partial knock-outs • Shallow installations • Flowlines • Monolithic systems


Rick Langguth, educated in engineering at MN and graduating from WI in Business and Marketing, Rick has spent the past 35 years in the precast/prestress industry in the upper Midwest. Currently, the Director of Sales for Forterra Pipe and Precast Northern Division, covering the Midwest Region.

Riley Dvorak is the technical resource engineer for Forterra in the Midwest region serving as the liaison between Forterra and the design community. He graduated with a civil engineering degree from Minnesota State University, Mankato. Riley has been widely involved in the precast industry since beginning his venture with Forterra in 2012.

Michael P Pardy, PE, is a 1991 graduate of SDSU in Civil Engineering. Currently, the Eastern SD Sales Manager for Forterra Building Products. Prior to this with Cretex (now Forterra) as the Engineering Product Manager in MT. Responsible for managing the manufacture and installation of dozens of bridge and other engineered product projects across MT, WY, SD, and ID. Prior to this, Pardy worked as a Design Engineer and Certified NBIS Bridge Inspector with Johnson Engineering in Yankton, SD. Also worked as a Project Engineer for SDDOT after graduating with a Bachelor's degree in Civil Engineering from SDSU.

Target Audience

All urban and pipe designers, specifiers, engineers and inspectors will benefit from this learning opportunity.

NDSU Dept 2880P.O. Box 6050Fargo, ND 58108-6050