Underground Construction Technology 2019

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  • Optional  Optional
  • Monday, January 28, 2019
  •  
    8:00 AM  -  12:00 PM
    Advanced Horizontal Directional Drilling School (Part 1)
     Optional 
    8:00 AM  -  12:00 PM
    Geotechnical School (Part 1)
     Optional 
    8:00 AM  -  12:00 PM
    Pipe School (Part 1)
     Optional 
    1:00 PM  -  5:00 PM
    Advanced Horizontal Directional Drilling School (Part 2)
     Optional 
    1:00 PM  -  2:00 PM
    Geotechnical School (Part 2)
     Optional 
    1:00 PM  -  5:00 PM
    Pipe School (Part 2)
     Optional 
  • Tuesday, January 29, 2019
  •  
    8:00 AM  -  12:00 PM
    Microtunneling and Pilot Tube School
     Optional 
    8:00 AM  -  12:00 PM
    Pipe Lining and Renewal School
     Optional 
     

    Track IA = SEWER CONSTRUCTION & REHABILITATION

    8:30 AM  -  8:55 AM
    Keynote I: The Future of Water & Wastewater in North Texas
    201 BC
    As executive director and general manager of the North Texas Municipal Water District, Tom Kula is responsible for leading all aspects of operations, management, planning and services. NTMWD has an annual operations and capital budget of more than $500 million, and provides drinking water treatment and delivery, wastewater collection and treatment, and solid waste services for a population of 1.7 million in one of the fastest-growing regions in the country.
    Keynote Speaker:
    Moderator:
     

    Track I-A = Sewer Construction & Rehabilitation

    9:00 AM  -  9:25 AM
    Designing, Constructing Interceptor/Junction in Fort Worth's Trinity Floodplain
    201 A
    Phase I of Fort Worth’s Sycamore Creek Relief Interceptor was a design challenge from the start. The proposed 66” FRP on the downstream end connects to an aging, existing junction box, under live flow, adjacent to the Trinity River. This location served as the downstream tunnel pit, in saturated soil, for tunneling under I-30, with two gas lines a few feet away. On the south side of I-30, the 66” line would interconnect with an aging 60” interceptor. This case study covers obstacles faced during design and construction of the 66” interceptor and junction box. Challenges included keeping the existing line in service, minimizing bypass, placing concrete in saturated soils, and groundwater infiltrating excavations making the connection.
    Moderator:
    Speaker:
    9:30 AM  -  10:25 AM
    Weighing Alternative Delivery Methods
    201 A
    Municipalities are increasingly considering alternatives to the traditional design-bid-build procurement method and the old framework of awarding the lowest qualified bidder on every project. Other delivery methods in the marketplace include design-build, construction manager at risk, competitive sealed proposals, and public private partnerships. This panel (representing an owner, contractor and consultant) will discuss alternative delivery methods and answer questions in an effort to work through some of the confusion around these practices, clarify the value these options offer, and better understand the risk they pose to all parties involved.
    Moderator:
    10:30 AM  -  10:55 AM
    Gravity Sewer Rehabilitation Design
    201 A
    When designing a new pipe, an engineer can calculate the loads based on the soil profile and other live loads, then select the correct type of pipe using manufacturer data and safety factor. When designing a rehabilitation project, condition of the existing conduit and manholes also needs to be considered because of its impact on confidence levels in the design. This presentation provides an overview of the design principals for gravity sewer rehabilitation and discusses condition assessment methods that can be implemented cost effectively, while getting the best use from inspection data.
    Moderator:
    Speaker:
    11:00 AM  -  11:25 AM
    CFRP Increases Life of Milwaukee PCCPs by 20 Years
    201 A
    Milwaukee Regional Medical Center needed to repair a dual 36-inch pre-stressed concrete cylinder pipe (PCCP)  in less than four weeks. Because the client didn’t have the budget to repair the whole line, Aegion used non-destructive evaluation to identify the 11 segments that could be rehabilitated to last another 20 years, until funding became available. While a multitude of trenchless rehabilitation methods are available, a carbon fiber reinforced polymer (CFRP) solution was selected as the option that could be completed within the owner’s requirements. This case history will examine the owner’s decision to use CFRP, the design process and installation of the CFRP system.
    Moderator:
    11:30 AM  -  11:55 AM
    Protecting Laredo, TX, Infrastructure from Microbiologically Induced Corrosion
    201 A
    Founded in 1755 and home to the nation’s second-largest port, Laredo is one of Texas’ fastest-growing cities. It also has some exceptionally old infrastructure. While implementing modern materials and technologies since the 1980s, the city still maintains miles of collection system that are more than 100 years old. Additionally, hot temperatures contribute to some of the nation’s highest levels of hydrogen sulfide (H2S), which is a threat to concrete structures and the workers who enter them. To combat the resulting micro-biologically induced corrosion (MIC) caused by H2S, Laredo previously applied cementitious and epoxy liners, requiring two trips to protect manholes. In 2015, the city applied new technology that replaced this method, improving worker safety and efficiencies, and reducing costs.
    Moderator:
    Speaker:
     

    Track I-B = SEWER CONSTRUCTION & REHABILITATION

    8:30 AM  -  8:55 AM
    Keynote I: The Future of Water & Wastewater in North Texas
    201 BC
    As executive director and general manager of the North Texas Municipal Water District, Tom Kula is responsible for leading all aspects of operations, management, planning and services. NTMWD has an annual operations and capital budget of more than $500 million, and provides drinking water treatment and delivery, wastewater collection and treatment, and solid waste services for a population of 1.7 million in one of the fastest-growing regions in the country.
    Moderator:
    Speaker:
    9:00 AM  -  9:25 AM
    Go Big! Go Fast! Trenchless Emergency Response to Fort Lauderdale
    201 BC
    The city of Fort Lauderdale was experiencing several breaks in a primary force main. Point repairs were no longer an option; it was in dire need of replacement and rehabilitation. A Murphy Pipeline Contractors team was awarded the emergency design-build services contract. Trenchless methods were optimal due to the recently rejuvenated Sistrunk Blvd urban landscape and its reliance on local traffic. HDPE material was selected for its jointless system, long life cycle, and strength to protect against corrosion. Project needs and existing conditions led to selection of compression-fit HDPE lining (Swagelining) and HDD as the trenchless methods to replace/rehab a total of 18,600 LF of 30” FM, with great success, including meeting an aggressive timeline, despite the disruption of Hurricane Irma.
    Moderator:
    9:30 AM  -  9:55 AM
    Installing Clay Pipe Through Sandstone with Guided Boring in Houston
    201 BC
    BRH-Garver contracted with the city of Houston to install 15” and 24” sanitary sewers, including the use of guided boring methods. Essential to the method is displacing soils from the advancement of the guide pilot tube. Subsequent to several successful manhole-to-manhole installations of different pipe diameters, sand stone was encountered where compressible soils were expected. Cooperative efforts between owner, engineer and contractor addressed the changed geo-technical conditions and created a successful solution. The contractor determined that a different tunneling machine was required for the sandstone. The engineers reviewed the proposal during 2017 and in early 2018 the project was re-started with the Akkerman 31” O.D. microtunneling machine for installing 24” inner diameter Can Clay Denlok VCP jacking pipes.
    Moderator:
    10:00 AM  -  10:25 AM
    Houston’s Upper Brays Tunnel Liner Removal: A ‘True’ Trenchless Project
    201 BC
    This presentation details a case history of the Upper Brays Tunnel Liner Removal Project. The 3-mile long, 9’-diameter, 65’-deep tunnel runs along one of the busiest thoroughfares in Houston, with high-profile businesses on either side. Boyer, the general contractor, removed 760,000 lbs. of the failed liner from the tunnel with only one access point inside the Upper Brays Plant on the downstream end of the tunnel, without causing any disruption to the businesses or traffic. The project was completed in 60% of the allocated time and below budget, allowing the city to make additional upgrades to the system. The history of the liner, why it failed and how the current project was executed as “a true trenchless project” will be discussed.
    Moderator:
    Speaker:
    10:30 AM  -  10:55 AM
    Quantifying Risk on the DC Water Clean Rivers Project
    201 BC
    In 2005, the District of Columbia Water and Sewer Authority (DC Water) entered a consent decree with the Department of Justice, the EPA and the District of Columbia, and embarked on a 25-year, $2.77-billion DC Clean Rivers Project to reduce CSOs into its surrounding waters by 96%. Since the project involved a large network of tunnels, structures and other utilities, program leaders determined early on that a rigorous risk management program was of utmost importance. As part of this, quantitative cost and schedule risk analyses were performed to evaluate DC Water’s risk exposure in terms of dollars and potential delays. This presentation outlines the steps to conducting the quantitative risk analyses and explains how they are utilized.
    Moderator:
    Speaker:
    11:00 AM  -  11:25 AM
    Life-Cycle Cost Analysis as Lateral Lining Decision-Making Tool
    201 BC
    North American utilities are turning to CIPP lining of collection systems for proven, cost-effective rehabilitation. Leaking laterals can contribute more than half the I&I in a collection system. Thus, successful projects must include lateral lining for a tightly sealed system. Life Cycle Cost (LCC) Analysis is a practical tool to help decide which lateral lining is the most cost-effective, sustainable solution and is also required by State Revolving Loan Funds. Focusing on the LCC method detailed by ASTM F1675, "Standard Practice for Life-Cycle Cost Analysis of Plastic Pipe Used for Culverts, Storm Sewers, and Other Buried Conduits," this presentation reviews LCC considerations and a case study to inform and demonstrate the application to lateral lining.
    Moderator:
     

    Track II = WATERWORKS CONFERENCE

    8:30 AM  -  8:55 AM
    Keynote I: The Future of Water & Wastewater in North Texas
    201 BC
    As executive director and general manager of the North Texas Municipal Water District, Tom Kula is responsible for leading all aspects of operations, management, planning and services. NTMWD has an annual operations and capital budget of more than $500 million, and provides drinking water treatment and delivery, wastewater collection and treatment, and solid waste services for a population of 1.7 million in one of the fastest-growing regions in the country.
    Keynote Speaker:
    Moderator:
    9:00 AM  -  9:25 PM
    24-inch Force Main by HDD for Dallas
    202 A
    The Cypress Waters Phase 2 Lift Station and Force Main project involved the design and construction of a 9 MGD lift station, approximately 15,000 LF of 24” HDPE force main in far northwest Dallas near North Lake. About 5,000 LF of force main was installed in the median of Belt Line Road through Coppell. To maintain traffic flow and minimize disruption to the roadway, the force main was installed in four, separate horizontal drill sections, each with its own set of unique challenges. Construction of the horizontal direction drills spanned 4 months and was completed in September 2017.
    Moderator:
    Speaker:
    9:30 AM  -  9:55 AM
    Economically, Accurately Assessing Small-Diameter Mains
    202 A
    The Water Research Foundation recently published Report No. 4471, "Leveraging Data from Non-Destructive Examinations to Help Select Ferrous Water Mains for Renewal." This tailored-collaboration project was conceived, developed and led by HDR, and included field tests at the sponsoring utilities: LADWP, Denver Water, Seattle Public Utilities, Fairfax Water and DC Water. The city of Calgary also assisted, providing access to 15 years of condition-assessment and main-break data. By applying knowledge from this report, the utilities can extend the service lives of some mains, prevent unnecessary main breaks from occurring, tailor renewal methods to main condition, and decrease the chance of an erroneous decision.
    Speakers:
    Speaker:
    10:00 AM  -  10:25 AM
    Pipe-Bursting Water Mains: Process, Design, Construction, Case Studies
    202 A
    Learn the basics of pipe bursting water mains, including design considerations associated with materials, equipment and process when handling service laterals, gate valves, tees, fire hydrants, installation and restoration.
    Moderator:
    Speaker:
    10:30 AM  -  10:55 AM
    Selection of Water Main Materials
    202 A
    While 100 years ago, most water mains were made of cast iron, common choices today in the U.S. are ductile iron and PVC, while in Europe, HDPE is often preferred. Steel has remained popular for larger-diameter transmission mains, but often competes with various types of reinforced concrete cylinder pipe. Popular between the late 1940s and mid-1980s, AC pipe lost its attractiveness with concerns about asbestos. Based on several utility projects HDR conducted research for (including several in Los Angeles), this presentation will address questions regarding selection of water main materials: Why should a utility pick one material over another? When selecting a material, what should be considered and how should it be designed? Which materials perform best under earthquakes?
    Moderator:
    Speaker:
    11:00 AM  -  11:25 AM
    Extreme Cleaning at Corpus Christi Water Reclamation Plant
    202 A
    Corpus Christi's OSO Water Reclamation Plant was badly in need of a makeover. The city contracted CSA Construction Inc. to construct a new headworks to replace the grit collection system and bar screen. In addition, Debris Removal Solutions of Port Arthur, TX was contracted to remove 1,420 tons of grit, rags and other debris from influent and return channels that hadn’t been cleaned since the plant started operating more than 35 years ago. A change order increased the amount removed to 2,868 tons. The packed material proved too much for conventional cleaning methods using submersible pumps. DRS looked outside the industry and found a sludge pump designed for cleaning structures in chemical plants and refineries that performed flawlessly, providing up to 29.9" of vacuum.
    Moderator:
    Speaker:
    11:30 AM  -  11:55 AM
    Innovative Technologies to Assess, Prioritize Infrastructure Rehab
    202 A
    Water infrastructure throughout the U.S. is reaching a critical stage of critical condition. To turn this corner and establish better and more reliable information on the actual condition and remaining useful life (RUL) of these buried and essential assets, several recent advances have moved the level of understating to new heights. It applies to performing both external and internal inspection and assessment of pipelines, valves, hydrants and other ancillary facilities This presentation will review technologies and established protocols for determining existing condition and prioritization to help cities and water utilities develop effective asset management planning, managing the three pillars: sustainability, reliability and efficiency.
    Moderator:
    Speaker:
     

    Track III = LATERAL REHABILITATION

    8:30 AM  -  8:55 AM
    Keynote I: The Future of Water & Wastewater in North Texas
    201 BC
    As executive director and general manager of the North Texas Municipal Water District, Tom Kula is responsible for leading all aspects of operations, management, planning and services. NTMWD has an annual operations and capital budget of more than $500 million, and provides drinking water treatment and delivery, wastewater collection and treatment, and solid waste services for a population of 1.7 million in one of the fastest-growing regions in the country.
    Keynote Speaker:
    Moderator:
    9:00 AM  -  9:25 AM
    NASSCO Lateral Overview Documents
    202 B
    This session will present an overview of lateral lining, lateral-to-main connection sealing and associated practices, as a general guideline for wastewater facility owners.
    Panelist:
    Moderator:
    9:30 AM  -  9:55 AM
    Cross Bores
    202 B
    This session presents an overview of cross bore risk prevention and related inspection processes.
    Moderator:
    Speaker:
    10:00 AM  -  10:25 AM
    Lateral Insurance & Program Oversight
    202 B
    Sandy Suburban Improvement District located in Salt Lake County, Utah is a local sewer district. Sandy Suburban provides for an aggressive maintenance and rehabilitation schedule regarding its sewer collection system. Despite these practices, aging and failing private sewer laterals are increasingly problematic for both the local homeowners and Sandy Suburban. Many private laterals are in urgent need of repair or replacement throughout the District. The solution to this problem is an innovative private/public partnership. This presentation is on the effectiveness and lessons learned when implementing an all-inclusive lateral insurance program.
    Moderator:
    10:30 AM  -  10:55 AM
    CIPP Lateral Lining
    202 B
    Evaluation tips and decision processes involved when utilizing various trenchless technologies for lateral repair.
    Moderator:
    Speaker:
    11:00 AM  -  11:25 AM
    Grouting
    202 B
    Review the elements involved in the application of pressure grouting, including procedures for testing.
    Moderator:
    Speaker:
    11:30 AM  -  11:55 AM
    Expert Panel: Q&A
    202 B
    All the speakers will be available to answer questions from the attendees.
    Moderator:
     

    Track IV = PIPE BURSTING: Pipe Bursting Fundamentals

    8:30 AM  -  8:55 AM
    Keynote I: The Future of Water & Wastewater in North Texas
    201 BC
    As executive director and general manager of the North Texas Municipal Water District, Tom Kula is responsible for leading all aspects of operations, management, planning and services. NTMWD has an annual operations and capital budget of more than $500 million, and provides drinking water treatment and delivery, wastewater collection and treatment, and solid waste services for a population of 1.7 million in one of the fastest-growing regions in the country.
    Keynote Speaker:
    Moderator:
    9:00 AM  -  9:30 AM
    Design Considerations, Benefits of Pipe Bursting
    202 C
    This session will review the basics of pipe bursting, including types, product classifications, terms, etc. Also, the ever-growing scope of pipe bursting and splitting technologies will be highlighted.
    Moderator:
    Speaker:
    9:30 AM  -  9:55 AM
    Financial Intelligence of Pipe Bursting
    202 C
    This presentation will discuss the construction costs of pipe bursting and other pipe rehabilitation techniques, highlighting the decision points that make pipe bursting the most economical option. Issues include the impact of point repairs, asphalt and other surface improvements; easement acquisition costs; and other areas where pipe bursting will be beneficial. It will also cover situations where pipe bursting may not be a benefit.
    Moderator:
    Speaker:
    10:00 AM  -  10:25 AM
    Mitigating Risk in Class-C Pipe Bursting Projects
    202 C
    This presentation demonstrates the economy, versatility and efficacy of the pipe bursting method, especially when facing multiple job-site complications. The highlighted case study involved upsizing 900 LF of 4” cast iron pipe with 6” HDPE pipe. Complications included a tightly confined workspace on the surface with little room to fuse up lengths of pipe, as well as saturated clay ground conditions that made it difficult to place and secure the 125-ton hydraulic pulling machine. Also, multiple utilities crowded the easement underground, not only in close proximity to the pipe, but frequently crossing over it in the middle of the run.
    Moderator:
    Speaker:
     

    Track V = NASTT TRENCHLESS FORUM: Pipe Bursting Center for Excellence

    10:30 AM  -  11:55 AM
    Pipe Bursting Issues, Challenges & Growth Opportunities
    202 C
    Join in this discussion on pipe bursting. We'll review case studies, challenges, lessons learned, advantages and benefits of pipe bursting in the trenchless industry. Input and questions from the audience will be invited and encouraged.
    Moderator:
     

    Track VI-A = HDD: MUD CHALLENGES & SOLUTIONS

    8:30 AM  -  8:55 AM
    Where’s My Pipeline?
    203 A
    The best way to truly verify the product pipe location after pull-in, is by post surveying the hole. Rock, difficult soils can easily cause shifts. Modern guidance systems are generally accurate but drilling the bore and adhering to the design parameters can be a challenge for multiple reasons such as: designs not feasible, not enough tangent, wrong radius for both entry and exist versus size of product, entry and exit angles are skewed, incorrect cover at critical areas, as well as issues with other pipelines, cathodic protection and live utilities.
    Moderator:
    Speaker:
    9:00 AM  -  9:25 AM
    From Fiber to Pipeline: How to Manage Drilling Fluids
    203 A
    Contractors are wary of the time and money spent using HDD fluid. The conventional method of disposal often involves vast amounts of materials that help to meet solids criteria for transportation, and the costs for disposal at a landfill. This presentation provides an overview of current HDD recycling systems and the latest research on HDD fluid disposal. It includes case studies and information on how to reduce the current costs of managing liquid waste, improve safety, reduce risk and liability, and significantly minimize any environmental impact. By recycling and disposing fluid on the job site, crews can better conserve limited resources and improve ROI on HDD projects.
    Moderator:
    Speaker:
    9:30 AM  -  9:55 AM
    Mitigating IR Through Planning, Minimizing Mud Pressure
    203 A
    Inadvertent returns (IR) often occur when the downhole pressure is too high and become a concern when the fluids reach the surface or a body of water. Bore planning is the first step in helping to avoid inadvertent returns. A well-crafted bore plan needs to account for soil conditions, product type, fluid calculations, estimated pressure and equipment tooling. This presentation will outline how to plan and design a bore and use HDD best practices, in conjunction with planning, to reduce problem areas that could lead to IR.
    Moderator:
    Speaker:
    10:00 AM  -  10:25 AM
    Reclaiming, Solidifying: Managing the Rising Costs of Fluid Disposal
    203 A
    With increasing regulations targeting the disposal of horizontal directional drilling (HDD) fluids and rising disposal costs, mud is becoming a major concern for the industry. Developing an HDD fluid management plan can help companies more accurately estimate a project before work begins. Emerging technologies, like reclaimers and solidification equipment, can help manage disposal costs. This presentation will outline how to better determine drilling fluid requirements when bidding on a job, while accounting for disposal fees. It will also look at why and when a contractor should consider using a reclaimer to recycle drilling fluids and review one of the latest advances in fluid management: solidification equipment.
    Speakers:
    Moderator:
    Speaker:
    10:30 AM  -  11:55 AM
    DCA Panel-1: Inadvertent Returns Management, Strategies
    203 A
    Join representatives of the Distribution Contractors Association for a panel discussion on one of the industry’s most influential topics: inadvertent return management and strategies. Consisting of contractors, suppliers, academics and Washington DC representatives, this panel will discuss the DCA’s ongoing efforts to support and grow advancement and best practices of the HDD industry. Late last year, these members joined together in Washington, D.C., to visit with regulators and staged a walk-around at a live HDD project taking place at the National Mall. Presented by the HDD Committee of the Distribution Contractors
    Moderator:
     

    Track VI-B = HDD: ROCK CHALLENGES & SOLUTIONS

    8:30 AM  -  8:55 AM
    Rotary Bit Cutting Structures, an Explanation with Teeth
    203 B
    This presentation will define the mechanics behind rotary bit cutting structures used in HDD and provide comprehensive understanding to better prepare users in the selection and use of rotary cutting tools. Topics include: • Three things required of a tool to achieve mechanical material removal. • Cutting Structure materials • Cutting Structure geometries • Bit selection based on Cutting Structure
    Moderator:
    Speaker:
    9:00 AM  -  9:25 AM
    Mud Motors Remain Effective Tool for Rock Drilling
    203 B
    Mud motors remain a primary method for HDD rock drilling because they work. Evolution of all equipment involved in making installations with mud motor equipment has brought many improvements. A mud-motor equipped HDD rig with proper downhole tools and necessary support equipment can cut and be steered through rock of any hardness.
    Moderator:
    Speaker:
    9:30 AM  -  9:55 AM
    HDD Assist Evolves into Valuable Job-Site Option
    203 B
    Pneumatic hammers on HDD projects have evolved over the past 10 years and much has been learned. Now, more than ever, HDD contractors are trying to mitigate potential problems on challenging HDD projects by adding a pneumatic hammer to their job-site tool box, allowing quick reaction when challenges arise. Case studies on several current pneumatic hammer HDD techniques will be presented, including planned and unplanned pneumatic hammer assist and pneumatic hammer pipe extraction on HDD projects. Focus will be given to limitations, current techniques to consider and why, advancements and lessons learned.
    Moderator:
    Speaker:
    10:00 AM  -  10:25 AM
    Evolution of Dual Pipe Makes Mid-Sized Rock Drilling Practical
    203 B
    The development of the dual-pipe system has proved to be a major milestone in the evolution of directional drilling, enabling mid-size equipment to effectively and economically work through hard rock. Thus, it allows for the first time HDD to be used in developed areas built over rock. Typically, dual-pipe models can be converted to a single-pipe system for drilling in softer soils. This development made it possible for contractors to purchase smaller machines to work more efficiently on compact and hard-rock job sites.
    Moderator:
    Speaker:
     

    Track VII = UNDERGROUND UTILITIES CONSTRUCTION

    8:30 AM  -  8:55 AM
    CFR Polymer is Perfect Rehab for Ohio Levee System Culvert
    203 C
    The levee wall surrounding Zoar, Ohio, protects the historic village from flooding by the Tuscarawas River and its tributaries. A system of 36-inch square concrete box culverts provides conduits for the water to flow through the levee walls. The Army Corps of Engineers, responsible for operation and maintenance, determined the culverts were coming apart and in need of rehabilitation. While the Corps initially solicited bids for a cured-in-place pipe solution, it ended up not being feasible, and a method involving carbon fiber-reinforced (CFR) polymer was chosen instead. This session will discuss the hand-application of 12” and 24” wide strips of CFR polymer, and overcoming the challenges of working in a constricted area and complex bypass system.
    Moderator:
    Speaker:
    9:00 AM  -  9:25 AM
    Bridges to Bypass in Alabama
    203 C
    In the spring of 2017, the city of Montgomery, AL, released a bid for sewer siphon rehab. The project consisted of rehabbing four separate sewer siphons using cured-in-place-pipe (CIPP), with pipe diameters ranging from 14” to 64”. Extensive bypass was required to support the CIPP, and Sunbelt Rentals was chosen as the bypass contractor to perform the flow diversion. This presentation will dive into the challenges of the project, addressing the major obstacle of designing and installing four temporary aerial bypass crossings with spans up to 170’. Other issues involved how the bypass met the tight specifications, which ultimately reduced the owners’ risk of Sanitary Sewer Overflows; and how the bypasses were accomplished to meet the tight project schedule.
    Moderator:
    Speaker:
    9:30 AM  -  9:55 AM
    What to do with all this Corroding CMP Storm Drain Pipe
    203 C
    CMP has been an inexpensive material to use for storm drain culvert design and installation since its invention. However, its lifespan is not as lasting as other options, and is subject to degradation from rust, typically at the bottom of the culvert where water is present. This presentation will demonstrate centrifugally cast concrete pipe (CCCP) as a trenchless structural repair alternative that can transform corroding CMP pipe into a new concrete pipe, quickly and affordably. Case studies of past projects will be presented, including design parameters and calculations, outage requirements, surface preparation methods, installation procedure, problems encountered and how they were overcome, overall increase in asset strength, and approximate costs.
    Moderator:
    Speaker:
    10:00 AM  -  10:25 AM
    Geopolymer Lining Rehabs Colorado DOT Large-Diameter Culvert
    203 C
    In January 2016, the Colorado Department of Transportation (CDOT) placed a project for public bid which included repairing several large-diameter highway culverts and a single box culvert. CDOT had specified a spray-applied culvert lining under a special prevision to their standard specifications. The project, awarded to Inland Pipe Rehab LLC (IPR) as the low bidder, consisted of seven individual pipes, spread across three counties, with more than 2,000 LF of rehabilitation. This presentation will include a summary of the special prevision, the design and rehabilitation of the culverts, which occurred over a 6-week period, as well as an overview of the quality control performed as part of the project.
    Moderator:
    Speaker:
    10:30 AM  -  10:55 AM
    Culvert Replacement Utilizing Pneumatic Pipe Ramming
    203 C
    Pneumatic pipe ramming continues to develop into new applications with innovative ideas and techniques for achieving outcomes on projects with extraordinary requirements and restrictions. The method has also been successfully used in a more standard configuration to facilitate the installation of drainage casings by ramming a larger diameter casing over an existing culvert. Pipe ramming proves its value in situations that require quick mobilization, effective casing or culvert installation and extra care regarding surface protection in sensitive areas. This session will discuss the challenges encountered due to remote location, extreme cold weather and drive adapter energy loss during the project.
    Moderator:
    Speaker:
    11:00 AM  -  11:25 AM
    Guided Rock Auger Boring Under a Mexico Airport Taxiway
    203 C
    A contactor used pilot tube guided boring innovation to complete a challenging utility installation under an active taxiway at the Monterrey International Airport in Nuevo Leon, Mexico. The project involved a sensitive, 197-LF, 36”-steel casing alignment to meet a utility junction box on the south side of the taxiway in 5,000 psi UCS weathered rock with minimal cover  the first instance of guided auger boring and pilot tube rock boring in Mexico.
    Moderator:
    11:30 AM  -  11:55 AM
    Production, Safety, Subpart P & the Role of the Competent Person
    203 C
    The onsite Competent Person has the difficult task of creating a work area free of hazard while maintaining production and staying within budget, regardless of conditions encountered. Luckily, options were incorporated into Subpart P to accomplish both. This presentation will demonstrate how the Competent Person can maximize the flexibility of the OSHA Standard to keep underground construction personnel safe, while also making sure the construction project remains profitable.
    Moderator:
    Speaker:
  • Wednesday, January 30, 2019
  •  

    Track I-C = SEWER CONSTRUCTION & REHABILITATION

    8:30 AM  -  8:55 AM
    Keynote II: Challenges and Trends (as I See Them!)
    201 BC
    Fiona Allen oversees the Northern Region of Trinity River Authority of Texas, This conservation and reclamation district provides water from reservoir facilities, water and wastewater treatment, along with recreation and reservoir facilities, within the nearly 18,000-square-mile Trinity River basin.
    Moderator:
    Speaker:
    9:00 AM  -  9:25 AM
    Small-Diameter Microtunneling & Open-Cut Cost Comparison
    201 BC
    This presentation will compare costs of small-diameter (8” - 30”) auger microtunneling versus open-cut for sewer installations. It will show new advances in shaft and microtunnel construction, and how these trenchless technologies are more cost effective than open-cut construction. Actual project cost comparisons will be shared.
    Moderator:
    9:30 AM  -  9:55 AM
    Evaluation of Potential Release Points During CIPP
    201 BC
    The National Association of Sewer Service Companies issued a request for proposals for a formal review of existing literature on potential health impacts associated with the cured-in-place pipe (CIPP) process and awarded the contract to a team of researchers from CUIRE and the Institute for Underground Infrastructure (IKT) in Germany. This presentation will present the outcome, which was that existing studies do not adequately capture worker or citizen exposures, due to questionable methodologies, and therefore, inconclusive results. The second part of the presentation will provide an update on the next phase of this study which involves air sampling of CIPP projects.
    Moderator:
    10:00 AM  -  10:25 AM
    Staying Out of the Trench: Contract Documents Address Unique Trenchless Aspects
    201 BC
    This presentation will discuss common challenges that owners and engineers face when implementing trenchless construction projects, and their scalable solutions. The discussion will emphasize simplified and practical risk-management concepts, ways to make better informed decisions or earlier decisions, when it is most effective, and ensure proactive management of projects with crossings requiring trenchless construction. Also included are useful guidance, impacts of failing to address these topics, and lessons learned from the speakers’ combined 25 years of experience designing and overseeing the trenchless construction of more than 150 tunnels and drills for water and wastewater pipelines 16”-120” diameter.
    Moderator:
    10:30 AM  -  10:55 AM
    Clean Water Challenges in a Sanitary Sewer Project
    When municipalities discuss their Clean Water efforts, sanitary projects are not usually what the public starts imagining. This presentation will discuss “clean water” aspects in design and construction of a sanitary sewer project in Houston, including the unexpected challenges that arose and threatened the Clean Water goal.
    Moderator:
    Speaker:
    11:00 AM  -  11:25 AM
    Large-Diameter CIPP: Veritable Golden Goose at the Top of a Beanstalk
    201 BC
    When large pipelines need rehabilitation, many issues can arise and multiple options exist in the pipeline market today. This presentation will particularly focus on managing the challenges of large-diameter rehabilitation using cured-in-place pipe, and how it’s been effective in limiting the impacts of potentially debilitating construction projects. Through case studies, the following challenges will be discussed: • Bypass Design  strategies for mitigating risk in design and tools for safe operation in construction • Rehabilitation Design  condition assessment and liner thickness considerations • Access and Stakeholder Impacts  construction staging in congested corridors • Beanstalks  options to descend large vegetation
    Moderator:
    Speaker:
    11:30 AM  -  11:55 AM
    Passaic Valley, NJ, Sewer Commission’s Main Interceptor Rehabilitation
    201 BC
    Insituform recently completed the rehabilitation of several large cross-section trunk sewers in the Patterson and Clifton, N.J., areas. While some of the sewers were rehabilitated by conventional slip lining using CCFRPM pipe by the general contractor, the more difficult sections used Insituform cured-in-place pipe (CIPP). Located in a high-traffic urban area, the installation totaled more than 1,100 feet of 65” and 68” lining with over-the-hole (OTH) wet-out. Adding to the level of complexity, a transition in the liner from circular to semi-elliptical was necessary. This presentation will discuss the extremely difficult access for the OTH wet-out, as well as the specialized transition liner.
    Moderator:
    Speaker:
     

    Track I-D = SEWER CONSTRUCTION & REHABILITATION

    8:30 AM  -  8:55 AM
    Keynote II: Challenges and Trends (as I See Them!)
    201 BC
    Fiona Allen oversees the Northern Region of Trinity River Authority of Texas, This conservation and reclamation district provides water from reservoir facilities, water and wastewater treatment, along with recreation and reservoir facilities, within the nearly 18,000-square-mile Trinity River basin.
    Moderator:
    Speaker:
    9:00 AM  -  9:25 AM
    Cost-Effective Rehabilitation with Mechanical Point Repair Sleeves
    202 A
    As budgets continue to shrink and regulatory demands grow, municipalities must work harder to inspect and repair using available resources. Mechanical point repair sleeves can be a cost-effective, time-saving alternative to end-to-end relining or excavation. Sleeves do not require digging, bypass pumping, wet-outs or cure time. They seal off cracks, holes and abandoned laterals; eliminate infiltration; and repair offset joints. Mechanical point repair sleeves are installed with a standard CCTV inspection crawler.
    Moderator:
    Speaker:
    9:30 AM  -  9:55 AM
    ‘Gasser’ Test Method to Limit Pinholes in Coatings with Penetrating Primers
    202 A
    For years, out-gassing and pinholes have been a source of frustration for coatings applicators, inspectors, engineers and owners. Following two years of research and development, and many manhours, a test method was created that visually demonstrates both the problem and solution to pinholes. This presentation will highlight development of the test method, testing equipment and the overall benefit to owners and engineers of specifying methods to limit pinholes in coating applications on concrete structures.
    Moderator:
    Speaker:
    10:00 AM  -  10:25 AM
    Plano, TX, RCP Rehabilitation Project
    202 A
    This session will discuss how Insituform’s flagship CIPP system and creative project management addressed the challenging concrete pipe (RCP) in Plano, Texas. Much of the pipeline ran through a high-profile area – the prestigious Gleneagles Country Club and its well-known 36-hole golf course. In addition to the CIPP installation, the presentation will cover job-site setup, scheduling, accessibility, bypass, manhole rehab, specialized CCTV and lift-station coordination.
    Moderator:
    Speaker:
    10:30 AM  -  10:55 AM
    Importance of Standards in Sustainable Lateral Rehabilitation
    202 A
    A major challenge faced by utilities in North America is rehabilitation of aging sewer collection systems. Utility budgets are too constrained with capital and R&R requirements to waste money on unsustainable projects. Experience shows that as much as 50-60% of I&I originates from failed laterals and their connection to the main, thereby requiring rehabilitation. To be sustainable (minimum 50-year life), laterals must be sealed watertight. CIPP lining is the most frequent choice for trenchless lateral rehabilitation and it is of utmost importance that such projects are properly designed and field applied. This presentation will cover: • Technical discussion of current lateral lining systems • Obtaining a tight seal under field conditions • The importance of ASTM standards, such as F2561-17, F3097-15 and F3240-17
    Moderator:
    Speaker:
    11:00 AM  -  11:25 AM
    Mains, Trains & Automobiles: Fort Worth’s ICAP Data-Driven Rehabilitation
    202 A
    For nearly a decade, the City of Fort Worth has systematically evaluated its sanitary sewer interceptors as part of the Interceptor Condition Assessment Program (ICAP). Kimley-Horn was tasked with interpreting the city’s findings for approximately 13,000 LF of 24” to 54” sanitary sewer interceptors (primarily more than 50-year-old reinforced concrete pipe) in the Clear Fork Basin, adjacent to multiple railroads and within an arterial roadway. The city’s ICAP raw data was evaluated to pinpoint portions of the pipelines with the greatest failure risk and reduce the necessary rehabilitation areas to less than 5,000 LF. The city selected CIPP for the rehabilitation method. Construction was underway last Fall and completion is expected by Summer 2019.
    Moderator:
    Speaker:
    11:30 AM  -  11:55 AM
    Sliplining 120-Inch RCP Wastewater in Dallas
    202 A
    The Southside 120-Inch Wastewater Interceptor Rehabilitation project involved condition assessment and evaluation of multiple rehabilitation alternatives for approximately 15,000 LF of 120” wastewater interceptor in Dallas near the Southside Wastewater Treatment Plant, with depths from 25’ to 50’. The preliminary design report evaluated cured-in-place, sliplining, spiral wind high-density polyethylene (HDPE) and polyvinyl chloride (PVC), geopolymer and epoxy linings, and open-cut replacement. The selected design included sliplining the 120” RCP wastewater main with 110-inch fiberglass pipe; a detailed bypass pumping and diversion plan; streambank stabilization at Prairie Creek; a levee crossing and technical specifications for sliplining, grouting, groundwater control and access shafts.
    Moderator:
     

    Track IX = PRESSURE PIPE

    8:30 AM  -  8:55 AM
    Keynote II: Challenges and Trends (as I See Them!)
    201 BC
    Fiona Allen oversees the Northern Region of Trinity River Authority of Texas, This conservation and reclamation district provides water from reservoir facilities, water and wastewater treatment, along with recreation and reservoir facilities, within the nearly 18,000-square-mile Trinity River basin.
    Moderator:
    Speaker:
    9:00 AM  -  9:55 AM
    Condition Assessment
    202 B
    This session will focus on condition assessment of pressure pipes. An overview of AWWA M77, "Condition Assessment of Water Mains" includes valuable information on program management to selection and implementation of methods available to gather data. Various pressure pipe inspection and assessment technologies will also be presented by equipment and service providers.
    Moderator:
    10:00 AM  -  10:55 AM
    Pipe Cleaning & Preparation
    202 B
    Every water main rehabilitation project utilizing a coating or lining begins with pipe cleaning. This session discusses the cleaning and surface preparation requirements of coatings and linings used to rehabilitate pressure pipe. Presenters will describe pipe cleaning methods, expected results, environmental and social impacts, and the potential problems associated with pipe cleaning. Panelists will then join participants in a round table event.
    Moderator:
    11:00 AM  -  11:55 AM
    Testing & Design
    202 B
    This session provides an overview of the various type tests, acceptance tests and demonstration test methods utilized as a basis of design, to confirm in-place properties and predict long-term performance of Class I-IV lining systems. An update on AWWA M28, "Water Main Rehabilitation" and the AWWA Structural Classifications white paper will also be provided. Panelists will then join participants in a roundtable event.
    Moderator:
     

    Track VI-C = HDD: CONTRACTORS ROUNDTABLE, MUD MANAGEMENT

    8:30 AM  -  9:55 AM
    HDD Contractors Roundtable
    203 A
    The annual Underground Construction HDD Roundtable will bring together four contractors of varying sizes in a roundtable format to candidly discuss issues of concern, growth potential, relationships with owners, equipment and services, and the overall state of the HDD industry. Time will also be allotted for questions and input from the audience. It’s a tremendous opportunity to gain valuable insight into the HDD market place.
    10:00 AM  -  11:25 AM
    DCA Panel-2: Mud Management for Profit
    203 A
    Mud, drilling fluids and additives are extremely important components in modern HDD operations. However, increasing environmental and regulatory issues, combined with economic restrictions, make mud usage an even greater concern for contractors. From adequate mix to recycling to cleaning to disposal, managing your mud program properly makes the difference between profit and loss on projects. This session will focus on how to navigate and direct your mud program for increased profitability. Presented by the HDD Committee of the Distribution Contractors
    Moderator:
     

    Track VI-D = HDD: CASE HISTORY & CROSS BORES

    10:00 AM  -  10:25 AM
    Reuse/Sanitary Sewer Extended Along Frisco, TX, Commercial Corridor
    203 B
    Frisco, TX, has experienced a drastic population increase over the past 15 years, along with matching development as a business center. This growth and the additional infrastructure needed to support it, coupled with recent drought conditions and limited overall water resource options, triggered an increased focus on water conservation efforts. As a result, two projects with major trenchless components were initiated to lessen the impact of construction on a fully developed commercial area along a major thoroughfare. This presentation will discuss the benefit that HDD provided to bore over 2,500’ each of 12” reuse and 20” force main, and the challenges faced in drilling a compound curvilinear alignment, when encountering hard rock formations.
    Moderator:
    10:30 AM  -  10:55 AM
    Innovations in HDD Systems to Improve Productivity
    203 B
    When working on utility installation projects, operators are often challenged with jobs that require a lot of power, but a compact footprint. Urban environments have limited room for setup, and the drill often needs to be transported between portions of the job. For these reasons, operators require directional drills with compact designs, and enough power to run downhole tooling at faster speeds for improved underground cutting. This presentation provides an overview and case studies on new HDD technology  a combination of compact directional drills and dedicated, off-board mixing systems. The combination provides superior productivity and performance on larger utility jobs, eliminating dependence on larger drills. These packages also optimize downhole horsepower under current Tier 4 compliance regulations.
    Moderator:
    Speaker:
    11:00 AM  -  11:25 AM
    World-Record Direct Pipe Installation in South Texas
    203 B
    This presentation will highlight Laney Directional Drilling’s Direct Pipe installation in Cameron County, Texas. The 42” pipeline shore approach project established the new world record for length of the Direct Pipe Method, with total installation of 5,000’. As part of the much larger project to construct approximately 155 miles of new 48” and 42” diameter steel pipeline, this trenchless installation will transport natural gas in South Texas. Details include equipment selection, labor requirements, safety considerations, design and engineering, marine support logistics and geology. In addition, several project challenges and how they were overcome will be discussed, such as offshore site logistics, challenging ocean current conditions and, most notably, dangers associated with Hurricane Harvey making landfall very near the project location.
    Moderator:
    Speaker:
    11:30 AM  -  11:55 AM
    Reducing Risk of Cross Bores
    203 B
    Cross bores can have dangerous consequences for utility crews and the surrounding neighborhood. Through proper upfront planning and preventive measures taken during an installation, cross bores can be avoided. Learn the steps every HDD crew should follow, tools that can assist with bore planning, best practices for potholing, more reliable ways to locate sewer lines and how to calibrate the drill head transmitter with the locator.
    Moderator:
     

    Track VIII = ASSET MANAGEMENT

    8:30 AM  -  8:55 AM
    Keynote II: Challenges and Trends (as I See Them!)
    201 BC
    Fiona Allen oversees the Northern Region of Trinity River Authority of Texas, This conservation and reclamation district provides water from reservoir facilities, water and wastewater treatment, along with recreation and reservoir facilities, within the nearly 18,000-square-mile Trinity River basin.
    Moderator:
    Speaker:
    9:00 AM  -  9:25 AM
    Houston Uses Emerging Technologies in Handling Utility Data
    201 A
    The City of Houston operates and maintains a large water and wastewater system. Its wastewater system includes about 5,900 miles of sewer pipes, 39 treatment plants and more than 380 lift stations to serve 2.2 million customers. Its water system includes some 7,500 miles of waterlines, three surface water plants and 56 groundwater plants to serve about 4.5 customers. These operations are monitored continuously, and the data is used in operational decisions, regulatory reporting and strategic asset management. Rapidly emerging business intelligence technologies help efficiently manage, process, visualize, analyze and share the outcome. Benefits include aiding all levels of utility staff in developing operational insights quickly and evolving a data-driven, decision-making culture effectively.
    Moderator:
    9:30 AM  -  10:25 AM
    Asset Management Certification & New-Generation Life-Cycle Tools
    201 A
    This session will explain the structured program established by BAMI-I that can lead to certification as an Associate Water Asset Manager and, later to Professional Water Asset Manager. It will also explain the new generation of life cycle asset management tools, “STATUS,” which allow the conveyance system operation to validate and optimize their maintenance, operation and renewal decisions. Cost savings from minimizing the consequences associated with risk and the positive effect of increasing the total asset net value can have a huge impact, depending on the size and condition of the network.
    10:30 AM  -  11:55 AM
    City Panel: Spectrum of Asset Management in the Water Utility Industry
    201 A
    Water utilities across the country are currently faced with an aging infrastructure challenge. Understanding how and why water and wastewater infrastructure assets deteriorate over time is the key to proactive life-cycle management. Water utilities are implementing a broad spectrum of asset management initiatives to help optimize their maintenance and capital investments. While some utilities have tried to drive asset management top-down from upper management, others have grassroot operation and maintenance initiatives for improving asset management. Successful programs usually combine a top-down policies, strategy and framework with practical bottom-up business processes and activities. The panel discussion will include presentations from several water utilities describing their current and planned asset management programs.
    Moderator:
     

    Track X = MANHOLE REHABILTATION

    8:30 AM  -  8:55 AM
    Keynote II: Challenges and Trends (as I See Them!)
    201 BC
    Fiona Allen oversees the Northern Region of Trinity River Authority of Texas, This conservation and reclamation district provides water from reservoir facilities, water and wastewater treatment, along with recreation and reservoir facilities, within the nearly 18,000-square-mile Trinity River basin.
    Moderator:
    Speaker:
    9:00 AM  -  9:25 AM
    New Inspection Technologies & Using the Info in NASSCO’s MACP Program
    202 C
    This presentation will provide an overview of some of the new manhole-specific inspection equipment and how the data collected can be incorporated into MACP inspection software and forms.
    Moderator:
    9:30 AM  -  9:55 AM
    When, Why and How of Manhole I&I Elimination
    202 C
    This session will address all aspects of eliminating I&I as the first function in a successful manhole rehabilitation program.
    Moderator:
    Speaker:
    10:00 AM  -  10:25 AM
    Cementitious Liners
    202 C
    With all the different cementitious material available in the market place, this session will describe the material properties of cementitious liners, specific manhole conditions that determine which cementitious material should be used and remove the mystery from cementitious lingo.
    Moderator:
    Speaker:
    10:30 AM  -  10:55 AM
    Corrosion Protection with Polymer Liners
    202 C
    Polymer liners have been used for more than 30 years to protect concrete manholes from corrosion. This presentation will provide an overview of the different types of liners available and when the use of a polymer liner is appropriate.
    Moderator:
    Speaker:
    11:00 AM  -  11:25 AM
    Importance of Proper Inspection
    202 C
    Inspection during and after rehabilitation insures the project owner of a long-lasting quality manhole rehabilitation. This presentation will discuss methods of inspection and how NASSCO’s Inspector Training Certification Program for Manholes can prepare owners, inspectors and engineers.
    Moderator:
    Speaker:
  • Thursday, January 31, 2019
  •  

    Track I-E = SEWER/WATER EMERGING TECHNOLOGIES

    8:30 AM  -  9:00 AM
    PbXtractor: Trenchless Lead Service Line Removal
    Exhibit Hall-Room 2
    A new trenchless method for lead service line replacement, RePipe’s PbXtractor is a unique mini excavator and skid steer attachment that pulls out the entire lead service line as it pulls in a new copper or PE service line. PbXtractor can also be used to split galvanized steel pipes. It’s trenchless, so it is less disruptive to property and landscaping, and brings efficiency and cost savings to the process.
    Moderator:
    Speaker:
    9:00 AM  -  9:30 AM
    Spin Cast and Infusion Pipe Lining for Water Pipeline Rehabilitation
    Exhibit Hall-Room 2
    In a quest to develop a better, more reliable method for the rehabilitation of underground water mains, a new technology can be robotically or manually applied, remotely monitored and controlled. It will result in long-term, high-performance, fiber-reinforced, high-strength and seamless epoxy-based installations. The technology is cost competitive and offers an alternative rehabilitation method for the water industry.
    Moderator:
    Speaker:
     

    Track VI-E = HDD EMERGING TECHNOLOGIES

    8:30 AM  -  9:00 AM
    Jet Pump Technology: Ideal Long-Distance Pipe Jacking, HDD Crossings in Highly Permeable Soils
    Exhibit Hall-Room 3
    Based on a Venturi system, Jet Pump technology can be used to accelerate fluids inside a pipeline. The efficiency is so high that drilling distances of up to 4,000’ can be accomplished with only one high-pressure pump, versus standard pipe jacking that requires multiple centrifugal pumps to overcome such a distance. First tested by Herrenknecht to extend the application range of HDD in soil formations with higher permeability, Jet Pump proved it lowered the risk of frac-outs and eliminated the need for costly mud engineering.
    Moderator:
    Speaker:
    9:00 AM  -  9:30 AM
    Drill Seal and HDD Defense: Game Changer in IR Prevention, Remediation
    Exhibit Hall-Room 3
    With growing regulations and environmental concerns, Inadvertent Returns (IR) is making some jobs undrillable and/or uneconomical. Many areas are prone to IR due in part to unconsolidated formations, low overburden pressures and natural fractures. Right Turn Supply partnered with downhole LCM specialization company Drillchem Drilling Solutions to engineer a product line specifically aimed at IR prevention and remediation. Two environmentally friendly sealant products, DrillSeal HDD and HDD Defense, are a game changer for operators drilling any crossing where IR may occur.
    Moderator:
    Speaker:
    9:30 AM  -  10:00 AM
    Small Rig Mud Motor
    Exhibit Hall-Room 3
    The new, 4-inch mud motor from Hunting Trenchless is perfect for the 24,000 – 40,000 rig class. Developed in conjunction with Underground Magnetics, the motor includes a small sonde installed close to the bit and works to depths of 70 feet.
    Moderator:
    Speaker:
     

    Track XI = ENGINEERING ETHICS

    8:30 AM  -  9:25 AM
    Ethics for Engineers
    Exhibit Hall-Room 1
    The Code of Ethics for Engineers will be presented, as well as case studies related to ethics for engineers in the public and private sectors. Attending this session will satisfy the engineering ethics requirement for annual license renewal.
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