9:00-9:55 a.m.
Nashville Program Update: Microtunneling Case History
Cyrus Toosi, P.E., Assistant Director/Chief Engineer, Metro Water Services
Jeff Seal, Regional Manager, Garney Construction
This presentation will provide an update of the Clean Water Nashville Overflow Abatement Program and the work performed to date to satisfy the EPA Consent Decree, Tennessee’s Division of Environment & Conservation and the Department of Justice. Work is approaching completion of the first 5 years of the 11-year program which included a significant investment in cured in place pipe lining, conveyance pipes and equalization tanks with pumping stations. Also presented will be a major water pipeline construction project that utilized microtunneling project for a 36″ ductile iron pipe with a 60″ casing pipe. The project includes tunneling under a railroad and I-65 Interstate to add redundancy to an existing PCCP pipe that serves several pressure zones and over 10,000 customers.

jeff-sealJeff Seal is Garney Construction’s Mid-South regional manager responsible for procuring, negotiating and managing multiple traditional bid, alternative procurement, and power and industrial focused projects. Jeff has spent his entire career managing pipeline operations throughout the South East United States. Since joining Garney in 2005, he has managed the construction of nearly $250 million in water and wastewater pipeline projects. He graduated with a Bachelor of Science in civil engineering from Vanderbilt University.

cyrus-toosiCyrus Toosi, P.E., has worked at Metro Water Services, Nashville, TN, for more than 26 years, starting as an engineer-in-training and currently the assistant director/chief engineer over the Engineering division. He is a registered professional engineer in the state of Tennessee, and a member of both AWWA and WEF. He graduated with a Bachelor’s in civil engineering from The University of Texas at Austin. 

10:00-10:25 a.m.
Expanding Infrastructure Education, Information Options
Tom Iseley, Ph.D., P.E., Dist. M. ASCE, CETF Professor/CE Director, Trenchless Technology Center, and Executive Director BAMI, Louisiana Tech University
This session will explain how TTC has developed specialty schools for AB and UIS during the past couple of years, and expanded its Municipal Forum program, which has operated successfully for over 16 years at more than 100 sites nationwide. The session will also describe the partnerships established with the Colorado School of Mines and the UNITRACC program from Germany, explaining what TTC is doing internationally to support and expand technical solutions, and asset management principles and practices.

iseleyTom Iseley, Ph.D., P.E., has over 35 years of experience in the planning, design and construction of underground infrastructure systems. In 1989, he established the Trenchless Technology Center (TTC) at LA Tech University, serving as director for five years and director of development for two years. In 2003, he was as a senior advisor on an initiative that resulted in the formation of BAMI (Buried Asset Management Institute) and continues to serve as chairman of the Board of Directors.

10:30-10:55 a.m.
No Silver Bullet: TRA’s Bear Creek Large-diameter Rehabilitation
Kelly Davis, Project Manager, Trinity River Authority of Texas
Paul Banschbach, Project Engineer; Lockwood, Andrews & Newnam Inc.
There is no silver bullet in the world of pipeline rehabilitation, and a recent assessment of the Bear Creek interceptor system for the Trinity River Authority (TRA) highlights this perfectly. The characteristics of a 5,000 LF stretch of parallel 54” and 84” interceptors in TRA’s Bear Creek system required evaluating a variety of rehabilitation technologies. Strategies included sliplining, cured in place lining and interceptor replacement, with no single option proving to be a clear winner. Combinations of technologies were evaluated with consideration of property requirements, cost, constructability, and risk in an effort to determine the optimal renewal path. This presentation serves as an example of the fact that determining the best rehabilitation technique requires a diverse toolbox.

davisKelly Davis graduated from the University of Texas Arlington with a B.S. in Civil Engineering. She is a licensed professional engineer in Texas and an active member of WEAT, ASCE and UCTA. After 12 years in the private sector, she joined the Trinity River Authority of Texas’ Planning and Development department, managing pipeline improvement projects.


Paul Banschbach, Project Engineer at Lockwood, Andrews & Newnam Inc., is a licensed professional engineer in the state of Texas. He received an undergraduate degree in Civil Engineering from Texas A&M University and an MBA from the University of Texas at Arlington. His experience includes over 200,000 LF of pipeline design in the Dallas-Fort Worth Metroplex within the last five years.

11:00-11:25 a.m.
Clearing Blocked Force Mains
Kent Ford, Vice President, CleanServe
The city of Houston experienced an unusual occurrence. Several force mains began depositing material, which seemed to be a combination of sand and other minerals, on their walls immediately downstream of the lift stations. Flow was severely restricted, pumps were running constantly, but moving very little wastewater through the pipe, using excess power and potentially damaging the pumps. To remedy the situation, CleanServe first focused on a 1,500-foot length, 12” diameter line with buildup that reduced it to about 1” diameter. T Construction provided by-pass and access to the line, and using a combination of nozzles and other cutting tools, CleanServe crews were able to restore the line to 95% of its original capacity in 4 days. Building on the knowledge gained, CSI developed a plan to clean a considerably longer (5,600 feet) 16” line with no access points. After T Construction added access points and provided bypass pumping, CleanServe restored the line to capacity in 15 days.

11:30-11:55 a.m.
Success Using Antimicrobial Additive for MIC Protection
Van Young, Regional Manager; and Johnny Love, National Product Manager; ConShield Technologies
Microbiologically Induced Corrosion (MIC), commonly known as hydrogen sulfide corrosion, is a serious problem throughout sewer systems. The service life of concrete structures suffering MIC is often less than 10 years. Based on EPA reports, several thousand miles of concrete pipe have needed replacement due to MIC in the greater Houston area alone. This presentation will explore solutions used in the rehabilitation of an air-release valve vault by the Trinity River Authority in Grand Prairie, TX, the construction of a lift station in Mansfield, TX, and precast manholes installed by the city of Dallas. Each of these projects utilized antimicrobial additives to permanently protect concrete sewer structures against MIC.

youngVan Young holds a B.S. in Agricultural Engineering/Hydraulics from the University of Arkansas, and is a NACE certified coatings inspector. With over 30 years of experience in the Texas water/wastewater industry, he is currently employed as the Southeast regional manager for ConShield Technologies, Inc.


loveJohnny Love, National Product Manager for ConShield Technologies, brings a wealth of experience in industrial technology – from drilling, to wastewater and calcium aluminate technologies. Through his career he has exemplified strengths in engineering, production, innovation, organizational integration, operational profit and loss, systems integration, and national and international business development. He holds a B.S. in Industrial Engineering from the University of Alabama.


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