Practical Considerations of Using ASCE MOP 145 to Facilitate Design and Construction Implementation of Close-Fit Liners

January 16, 2025 1:00 pm

The ASCE Manual of Practice 145 is a robust analytical approach for “close-fit” flexible liner design. Built on the French National Practice ASTEE 3R (2014), is considerably more complex and accurate than design approaches like Appendix X1 of ASTM F1216 for circular host pipe and the WRc SRM Type II design method for non-circular pipe, both of which have been used in North America for many decades.

With increased accuracy, however, can come increased complexity and ASCE MOP 145’s robust nature truly has many moving parts that present unique challenges to both the Designer and to the Contractor to fully understand design intent and risks associated with that in the Construction Phase. This Webinar provides an overview of the MOP from both a Designer and Contractor’s perspective in terms of practical considerations for its use; how and how not to articulate design intent clearly as well as how to mitigate and distribute risk fairly and appropriately in the construction phase. The presenters use true case studies of its use in projects across North America in the past 3 years since the MOP’s introduction to the North American market.

About the Speaker

profile-image

George Bontus

P.Eng. Director of Engineering Insituform Technologies

George Bontus, P.Eng. is Director of Engineering with Insituform Technologies Limited. He is responsible for design and reviews for Insituform’s CIPP liners in gravity and pressure pipe applications across Canada. George is active in AWWA as a member or chair on several committees including Manual M28 Watermain Rehabilitation, Chair of Sliplining Standard, and C623 CIPP Standard Design Appendix. He is currently Chair of NASTT NW Chapter. George has delivered trenchless courses and technology papers for over 20 years, and is an approved Instructor for the NASTT CIPP Good Practices Course. George has over 20 years’ experience related to trenchless technologies and rehabilitation. He is a registered professional engineer in BC, AB, SK, MB, ON and NS.

profile-image

Chris Macey

P.Eng. Americas and Global Technical Practice Leader AECOM

Chris Macey, P. Eng. is a Vice President and the Americas and Global Technical Practice Leader for AECOM for Condition Assessment and Rehabilitation of Underground Infrastructure. With over 45 years of experience Chris has considerable expertise in complex new construction, assessment, and rehabilitation projects. Chris graduated from University of Manitoba in 1977 and with AECOM since 1978. Chris has co-authored numerous standard practice and guidelines through AWWA, ASCE, NASTT, ASCE, and NASSCO. In 2019 was elected to the NASTT Hall of Fame for his work in Condition Assessment and lifelong work in advancing Trenchless Technologies. For the past five years he has also been a member of NASSCO’s Technical Advisory Council.

About the Moderator

Caroline Amyot
M.A.Sc., P.Eng. Senior Project Engineer, City of Waterloo

Webinar Sponsors