Pipeline By Horizontal Directional Drilling Design Guideline Task Committee

• Prepared by the Horizontal Directional Drilling Design Guideline Task Committee of the Technical Committee on Trenchless Installation of Pipeline Systems of the Pipeline Division of ASCE
• This Manual of Practice addresses the design of major pipeline or duct segments to be installed by horizontal directional drilling (HDD). HDD is a trenchless excavation method that is accomplished in three phases and uses a specialized horizontal drilling rig with ancillary tools and equipment. Topics include predesign surveys, drilled path design, pipe design, construction impact, and as-built documentation. This new edition captures advances in drilling equipment, improvements for tracking, and considerations for using alternative pipe materials.
• MOP 108 is a guide for design engineers who have previous experience and knowledge of the HDD installation process and pipeline design methods.