Markets, Wastewater

Selecting the right sewer rehabilitation method

Mr Waligorski will outline the project, which consisted of the rehabilitation or replacement of approximately 42,300 lineal ft of 6 inch, 8 inch, and 12 inch diameter sewer mains and the challenges encountered in determining the most cost-effective construction method.

He will outline the preliminary engineering approach used by the City to determine the most cost-effective method of replacement or rehabilitation using three construction technologies: conventional open-cut construction, pipe bursting, and cured-in-place pipe rehabilitation.

About the speaker

Erik Waligorski is a Principal with Roth Hill, LLC located in Bellevue, Washington, US. He has led several pipeline rehabilitation and replacement projects over his career, including the analysis and rehabilitation of over 100,000 ft of sewer mains in the last five years using various trenchless technologies.

His trenchless experience includes the replacement and rehabilitation of pipelines using cured-in-place pipe, horizontal directional drilling, auger boring, and pipe bursting. Mr Waligorski is currently the Chair of the Pacific Northwest Chapter of the North American Society for Trenchless Technology.

Send this to a friend