TRACK I-E = SEWER CONSTRUCTION & REHABILITATION

feb-1

8:30-8:55 a.m.
Sliplining FRPMP Extends Denver Sewer Life 100+ Years
Speakers
Michael Rocco, Operations Manager, AUI Inc.
Bijan Khamanian, Division Manager-West, Hobas Pipe USA
Description
In a recent major sewer renovation, Metro Wastewater Reclamation Districts in Denver used over 3,100 LF of 48”, 54” and 66” Hobas centrifugally cast fiber reinforced polymer mortar (CCFRPM) pipe for renovation of PAR-1250 in the downtown area. Sliplining was selected since the businesses and traffic, both foot and vehicle, would not allow setting up noisy bypass pumping and curing systems for CIPP rehab. The longest portion of the project was 2,097 LF of 66” CCFRPM that had to be pushed inside a 72” reinforced concrete pipe. Furthermore, 615 LF of 48” and 454 LF of 54” CCFRPM were used in two smaller reaches. This presentation will provide an overview of the project, logistics and construction of deep shafts in a congested business district of Denver, and its completion on time and within budget.


9:00-9:25 a.m.
Managing A $1+ Billion CIP for TRA
Speakers
Marco Ramirez, P.E., Engineer, Planning & Development, Trinity River Authority of Texas
Ken Lawrence, P.E., Sr. Consultant, IT Nexus Inc.
Description
Among the responsibilities of the Trinity River Authority of Texas/Northern Region Planning and Development Group is creation and yearly update of a five-year Capital Improvements Program (CIP). Rapid growth in this program – from $61 million in 2002, to $396 million today and $1 billion projected in the current CIP – also increased complexity and management challenges. Upon advisement of a project execution expert, the group implemented a novel and practical Project Execution Maturity Model (PEMM) to assist in maturing processes and behaviors necessary to accelerate project delivery. This presentation will demonstrate how a key PEMM component, the visual portfolio board, has improved scheduling and collaboration, resulting in reduced rework and increased cost efficiency.

ramirezMarco Ramirez, P.E., Engineer-Planning & Development, Trinity River Authority of Texas, is responsible for managing the design of wastewater collection projects and lift stations. He has been involved in the design and construction of water and wastewater projects for 15 years. He holds a B.S. in Civil Engineering from the University of Texas at El Paso.

 

lawrenceWith a background in capital planning, asset management, data analysis, modeling and GIS, Ken Lawrence, P.E., Sr. Consultant, IT Nexus Inc., assists utilities in developing and implementing data and information management solutions for planning, management and decision making. He has a B.S. in Civil Engineering from Texas A&M University, and M.S. in Water Resources and Environmental Engineering from The University of Texas at Austin.


9:30-9:55 a.m.
Difficult Conditions Lead to Unique Trenchless Solutions for Trinity River Vision Project
Speaker
Josh Kercho, P.E., Project Manager, Kimley-Horn and Associates Inc.
Description
The Trinity River Vision (TRV) is a significant redevelopment project currently being implemented in Fort Worth, Texas. TRV consists of a new bypass channel and levee system that will improve flood protection for the Panther Island area near Downtown Fort Worth. This paper focuses on Part 7-Gateway Site E Sanitary Sewer Relocations Project, which is one of over 20 major utility relocation projects associated with the TRV.  Part 7 was constructed in 2015 and involved the relocation of 2,200 feet of sanitary sewer (8” to 24”), including a double-barrel 18”/12” inverted siphon installed by HDD under the Trinity River, and 48” steel casing pipe installed by open-shield pipe jacking beneath IH-30, both in challenging soil conditions and limited workspace.

kerchoJosh Kercho, P.E., graduated from Texas A&M University with a Bachelor’s degree in Civil Engineering. He is a project manager with Kimley-Horn and Associates, and has nearly nine years of experience in water and wastewater infrastructure design. His experience includes water distribution and transmission design, wastewater collection and interceptor design, force main design, ground storage tank and yard piping design; and infrastructure condition assessment.


10:00-10:25 a.m.
Contractor Case for CIPP Temperature Monitoring
Speaker
Gary Rapp, Vice President Operations, ZIA Systems LLC
Description
Contractors have long used thermocouples at the manholes to measure temperature readings of the steam or water during CIPP processing. Historically, the established temperature and duration was enough to give contractors the confidence that the curing was complete. In addition, municipalities and design engineers were presented with hand-written temperature charts that supposedly verified the work. However, in these days of automatic data logging, accountability, and the need for better quality control, the CIPP process has seen improvements to ensure proper curing of the liner. This paper presents a case study where a large CIPP contractor made a strategic decision to embrace sensor technology that would capture temperature readings all along the pipeline, to help ensure QC/QA. The discussion will define the plan, the implementation and the results of the study.

gary-rappGary Rapp has over 35 years of experience in information technology and operations. After serving as an executive at a $6 billion natural gas company, Columbia Gas, he co-founded several companies, including TimeHighway.com and Zia Systems. As COO of Zia Systems, he oversees all operations and marketing activity.


10:30-10:55 a.m.
Fiberglass Pipe Jacking Aids Upgrade of Las Vegas Sewers
Speaker
Jeffrey LeBlanc, P.E., Director of Engineering, Thompson Pipe Group-Flowtite
Description
The Paradise Whitney Interceptor is an extensive gravity pipeline being built in Las Vegas by the Clark County Water Reclamation District to maintain a safe and reliable infrastructure for delivering wastewater from homes and businesses to the treatment facilities. The existing pipelines are currently at or above capacity, and this new pipeline will help to relieve current deficiencies and provide capacity for the future. Geological investigations at an early stage of the project revealed the variable nature of soils in the region. Areas of sticky clay, collapsible soils, dewatering-induced settlement, high groundwater, and even cemented caliche were present in the pathway of the pipeline. The main issue to be encountered, though, was to work around existing structures, in close proximity to sensitive underground utilities and with limited surface access.

leblancJeffrey LeBlanc, P.E., Director of Engineering, Thompson Pipe Group-Flowtite, holds a B.S. in Civil Engineering from Louisiana State University. Since 2004, he has worked in the design, manufacture and installation of pipelines for water, sewer and hydropower utilities. He has expertise in buried flexible pipe design and long-term performance of polymer pipes, and in technical support for fiberglass and polymer concrete pipe products. He is a participant in AWWA and ASTM standardization committees, and a contributing editor to various ASCE pipeline committees.


11:00-11:55 a.m.
Perspectives for Success in Bypass Pumping
Speakers
Ken Albaugh, Central Regional Director, Xylem Dewatering Solutions Inc.
Description
A detailed overview of the bypass pumping system required for the rehabilitation of an existing 60-inch sanitary sewer line that serves as a critical trunk line for Memphis, TN. The sewer line is a monolithic reinforced concrete pipe that was built in 1977. The entire run of 60-inch sewer pipe was bypassed starting from a 30’ deep drop structure. The by-pass also required the bypassing of a 24” and 36” lateral simultaneously. The bypass system piping went through a green way approximately 3,500 LF. The bypass system had to handle 47.5 mgd or just under 33,000 gpm. The project had numerous challenges to overcome.


TRACK I-F


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