Presentation Description: Collection systems are the wastewater utilities largest investment. They have a replacement value greater than that of a wastewater plant. Sixty to ninety billion dollars per year are spent on pipeline replacement in the United States. The congressional budget office estimates that an average of 71 to 98 billion dollars will need to be spent on water and wastewater systems through 2019. Trenchless technologies have become a major alternative to traditional digging for replacement of these lines. This session will discuss the following: 1. Problems such as: infiltration, exfiltration, roots, corrosion, leaks, and structural defects. 2. The four basic styles of technology used for mainline replacement and rehabilitation of pipelines and lateral connections. • Traditional Dig & Replace • Cured-in-Place pipe liners • Folded and Re-formed pipe liners • Pressure Pipe Liners 3. Bid specifications, including ASTM & “GREENBOOK Standard Specifications for Public Works Construction” developed and used in Southern California. 4. Case histories of unique award winning and record-breaking California projects will be highlighted.
Learning Objectives:
Identify pipe problems in older pipelines
Select from the available trenchless pipeline solutions to eliminate or reduce some of the major causes of increased hot spot maintenance
Learn & understand the new advancements in the state-of-the-art cleaning, pipelining, robotic capabilities to quickly clean & line projects that required disruptive and more costly dig and replace solutions
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