Design of Siphon Systems: On-Demand

Since at least the time of the ancient Egyptians, siphons have been a useful tool to transport fluids in conduits by arranging the conduit in an inverted "U" and relying on gravity to eliminate the need for a pump.  In the United States, siphons have been used as spillways and outlet works at dams.  This webinar reviews the best applications for siphons at dams; design procedures and considerations; misconceptions regarding how they function; real-life examples in use; and the best methods to construct and operate a siphon. 


Robert A. Kline, Jr., P.E.

Vice President, Gannett Fleming, Inc.

Bob is a Vice President of Gannett Fleming, Inc. and Manager in the firm’s Dams and Hydraulics Section at their Camp Hill, Pennsylvania headquarters office.  Over the past 26 years, he has been continuously involved in the planning, design, and construction of over 85 existing rehabilitation and new dam projects.  Bob specializes in concrete gravity dam design and was involved in the first roller-compacted concrete (RCC) gravity dams constructed in Pennsylvania, Maryland, and California.  In 1998-2003, he served as the RCC Design Task Leader for the Olivenhain Dam in San Diego, California; at 318-feet, it is the tallest new concrete gravity dam constructed in North America in the past 40 years.  Throughout his career, he has authored and co-authored numerous papers on the various aspects of concrete gravity dams.  Bob is currently serving as a lead designer for several large dam rehabilitation projects in New York and Virginia.

Andrzej Kulik, P.E.

Project Engineer, Gannett Fleming, Inc.

Andy Kulik holds a bachelor’s degree in civil engineering and a master’s degree in engineering management from the Pennsylvania State University.   He has over 8 years of experience in dam engineering, design, inspection and construction.  He is a registered professional engineer and a certified documents technologist in developing contract documents.  Andy is an instructor in permit required confined space entry and has supervised over two dozen confined space inspections of outlet works facilities at dams.


Welcome and Introduction

  • Session 1
    • History of Siphons
    • Applications
    • Fundamentals - How they Work
  • Session 2
    • Examples 
    • Critical Components
      • Intake
      • Crown
      • Priming System(s)
      • Downleg
      • Discharge
  • Session 3
    • Design Approach
    • Lessons Learned


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2.00 PDH credits  |  Certificate available
2.00 PDH credits  |  Certificate available