Segmental Steel Sliplining: A Tale of Two Water Transmission Renewal Projects

HDR has been a trusted advisor to Aurora Water and Louisville Water Company for decades. Both water utilities have aging water infrastructure, large conveyance systems, and serve metropolitan areas. HDR was called upon by each to assist with the renewal of critical transmission pipelines within their systems to continue dependable water delivery to their customers. Although completed independently, the two projects used similar trenchless rehabilitation methods. This presentation will provide an overview of the design, delivery, and construction approaches provided for the $17.5M Aurora Rampart Delivery System 54-in. (1,350 mm) PCCP Steel Slipline and the $25.5M Louisville Water Company’s Eastern Parkway 48-in. (1,200 mm) CI Steel Slipline rehabilitation projects. Project challenges, design criteria, and different sliplining construction methods will be highlighted for each project. The presentation will conclude with a summary of lessons learned from the two different approaches for the design and construction of the sliplining projects.