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    Engineering a Permanent Road Foundation (Print PDH from the February 2019 issue of Informed Infrastructure)

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    Unbound aggregate materials are the largest transportation infrastructure asset for most state and local Departments of Transportation (DOTs). This asset is used in road bases and subbases as well as for surfacing of unpaved roads. Unbound aggregate layers also are the most vulnerable transportation infrastructure, as these layers are subject to premature failure due to deterioration, contamination and adverse hydraulic conditions.

    These “out of sight, out of mind,” underappreciated and often under-engineered layers are the subject of this PDH article. The loss of support of unbound aggregate results in full-depth reconstruction, a total loss of the aggregate assets, and road downtime with traffic congestion and construction-related traffic accidents.

    Readers will be shown improved best-management design practices and how to preserve unbound aggregate assets to enhance the performance of these layers. Use of the correct aggregate and a separation/stabilization geotextile can construct a Permanent Road Foundation (PRF) so full-depth reclamation and total reconstruction may be avoided. The quality of aggregate enabled by the selection of the proper geotextile will maximize the cost effectiveness of these now-permanent road layers.

    As seen in the February 2019 issue of Informed Infrastructure magazine.

    AIA Course ID: PDH012019

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    Advances in Model-Centric Earthwork and Quantities with OpenRoads Designer (Archived Webcast)

    Originally Aired December 18, 2018. This webcast has expired

    In this wecast, we will discuss and demonstrate the latest tools to model, measure, and report on earthwork and quantities in OpenRoads Designer. You will see how to create and analyze a 3D earthwork model and report on the results.

    We will look at several methods of capturing and reporting quantities, including component quantities, element quantities, end area volume, and by named boundary.  This session will cover the practical tools and techniques you need to maximize productivity!

     

     

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    Design Considerations for Wildlife Crossings (Print PDH from the Nov/Dec 2018 issue of Informed Infrastructure)

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    The term “wildlife crossing” describes a variety of structures that are designed or retrofitted to provide safe passage for wildlife above or below a highway. Although wildlife crossing structures are not standardized designs, they can be categorized as two major types: overpasses and underpasses. Structures often are built in combination with fencing to increase their effectiveness.

    Each crossing is designed to serve the target species for a specific location or accommodate the majority of species in an area. When wildlife crossing structures are designed for motorist safety, the target species typically are large ungulates such as moose, elk or deer. Other wildlife crossings are designed for species with high conservation concern, such as salamanders, desert tortoises, flying squirrels or kit foxes.

    As seen in the Nov/Dec 2018 issue of Informed Infrastructure magazine.

    AIA Course ID: PDH122018

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      Guidance for Designing External Stormwater Diversion Structures (Print PDH from the Sep/Oct 2018 issue of Informed Infrastructure)

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      Months of design, pages of specifications, and tens or even hundreds of thousands of dollars may go into the design of a single bioswale, filtration basin or other stormwater treatment system. So why do engineers spend so little time thinking about the flow-control devices that make them work? This article focuses on the design of external stormwater diversion structures—an integral component of a complete stormwater management system.

      As seen in the Sep/Oct 2018 issue of Informed Infrastructure magazine.

      AIA Course ID: PDH_092018

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        Designing, Modeling, & Labeling ADA Compliant Ramps With Civil Cells (Print PDH from the September/October 2018 issue of Informed Infrastructure)

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        Designing ADA-compliant wheelchair ramps for installation in new or rehabilitated roadway intersections is a common task for civil engineers and other designers. Common, but not routine; adapting the ADA guidelines to particular situations can be tedious, and it’s very possible to make mistakes that lead to change orders and rework. In fact, non-compliant ramps are so common that redesigning ramps for reconstruction also is a common task for designers.

        As seen in the September/October 2018 issue of Informed Infrastructure magazine.

        AIA Course ID: PDH092018

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        Seismic Behavior of Helical Piles in Dense Sands( Archived Webcast)

        Originally Aired July 19, 2018. This webcast has expired

        Helical piles are being used in seismic regions of the U.S. and other countries, yet there remains much confusion regarding the state of practice and building codes for this pile type. Nonetheless, it is anticipated that piles with comparatively small cross-sections and high anchoring capacity, such as helical piles, could be beneficial for seismic resistance due to their slenderness, higher damping ratios, ductility, and resistance to tip uplift. Results from the premier full-scale seismic shake table testing program on helical piles in sands will be discussed.

         

         

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        How to Design a Culvert Reline Project (Print PDH from the May/June 2018 issue of Informed Infrastructure)

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        Culvert replacements are a common reality for all owners of drainage infrastructure and a routine part of maintenance and expansion projects on federal lands, roadways and railroads; state department of transportation (DOT) roadways; and at the local level with county, township and municipality owned transportation corridors. Fortunately, culvert rehabilitation via relining has gained momentum as a viable alternative to culvert replacement when dealing with aging drainage infrastructure. Whether an owner of a culvert wants to take a traditional design and delivery approach or conduct the work themselves, the construction methods of many reline options can be performed by parties whose normal work activities don’t include reline construction. In addition, most methods can be performed by in-house maintenance teams or entities who do more traditional open cut drainage work.

        As seen in the May/June 2018 issue of Informed Infrastructure magazine.

        AIA Course ID: PDH2_052018

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          Addressing Project Complexity (Print PDH from the May/June 2018 issue of Informed Infrastructure)

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          Project complexity and cost often grow in tandem. Both can be mitigated by the early selection and detailed engineering of the structural steel building system. This course, developed as an easy-to-read article, will give you a working knowledge of structural steel building systems and the ways to drive down the various costs of complexity, regardless of scale.

          As seen in the May/June 2018 issue of Informed Infrastructure magazine.

          AIA Course ID: PDH_052018

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            Improving Firm Profitability Through Business Intelligence (Archived Webcast)

            Originally Aired May 31, 2018. This webcast has expired

            “Business intelligence” might seem like a buzzword or outlandish concept, but the truth of the matter is that it’s here to stay. You already have the option of knowing exactly how your firm is doing and consistently making the right decisions to dramatically increase profits.

            You just have to use the right tools.

            Join Shafat Qazi, CEO & founder of BQE Software, to understand how business intelligence opens up a whole new world of possibilities for engineering firms and how to harness its power. You’ll discover practical applications of cutting-edge technology that will both boost short-term profits and position your firm as a front-runner in the years to come.

            Plus, Qazi will introduce you to BQE Software’s award-winning innovation, BQE Core. You’ll see how principals, partners, CFOs, and project managers are using platforms like Core to streamline their daily tasks, gain a distinct competitive advantage, and grow their companies like never before.

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            Evaluation of Media-Based Stormwater Filtration Systems (Print PDH from the March/April 2018 issue of Informed Infrastructure)

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            There are an increasing number of commercial and structural media-based filtration systems available to engineers and regulators to meet the need for effective and space-efficient stormwater treatment. As part of the due-diligence process, these individuals must understand and evaluate the design, functionality and ongoing operational requirements of the systems. This paper addresses fundamental media filtration evaluation criteria that, when taken together, provide a framework for comparing and contrasting different stormwater filtration systems. Consideration of these criteria is recommended prior to specifying or approving a system.

            As seen in the March/April 2018 issue of Informed Infrastructure magazine.

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              Engineered Earth Armoring Solutions: An Alternative to Rock Riprap (Print PDH from the January/February 2018 issue of Informed Infrastructure)

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              Engineers are tasked to provide solutions for infrastructure challenges in the most efficient manner possible. One must balance standard practice with innovation to constantly improve effectiveness and efficiency. Rock riprap is an accepted traditional solution for erosion control and slope stabilization, but there are other alternatives.

              Engineered Earth Armoring Solutions™ (EEAS) are environmentally friendly and economical erosion control solutions designed to provide significant hydraulic performance improvements over rock riprap. An EEAS consists of a High Performance Turf Reinforcement Mat (HPTRM) in combination with Engineered Earth Anchors™ (earth anchors), and is designed to meet a project’s hydraulic, geotechnical, design life, environmental and economical needs.

              As seen in the January/February 2018 issue of Informed Infrastructure magazine.

               

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              Green Infrastructure and Stormwater Post-Construction BMP Strategies (Archived Webcast)

              Originally Aired January 31, 2018. This webcast has expired

              Join us for this webcast as we address best practices for integrating green infrastructure into stormwater designs and Post-Construction BMP strategies.  Bill Wood, PE, and John Helfrich, PE, ENV, SP, Associate Civil Engineers for SmithGroupJJR, will present a case study on green infrastructure at Loyola University Chicago’s Lake Shore Campus: Restoring Hydrology through Campus Redevelopment.  Chad W. Brensinger, PE, LEED SP, Project Manager at Charles E. Shoemaker, Inc., will present a case study on an automobile dealership development in Willow Grove, PA.  The presentation will cover stormwater best management practices used at the dealership to provide several levels of water quality and flow reduction to minimize local stormwater runoff issues, localized flooding and stream bank erosion.

               

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              What Your Fabricator Wishes You Knew About HSS (Print PDH from the November/December 2017 issue of Informed Infrastructure)

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              Some engineers may be scared off from designing with Hollow Structural Sections (HSS) because they think—or have been led to believe—that HSS construction is too expensive. In actuality, HSS members can be very price-competitive with wide flange construction if the engineer keeps in mind certain things during design. The following information will give designers the knowledge to specify efficient HSS designs.

              As seen in the November/December 2017 issue of Informed Infrastructure magazine.

              Content Provided by Steel Tube Institute

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              Connecting Design and Construction for Architecture, Structure and MEP (Archived Webcast)

              Originally Aired January 11, 2018. This webcast has expired

              BIM initially gained traction with design professionals; to iterate more fluidly, analyze options more objectively, and produce better documentation. Today, an increasing number of MEP and structural contractors and fabricators are using BIM to improve detailing, fabrication, installation and handover activities. The research by Dodge Data & Analytics presented in this webcast focuses on:

              • How BIM is being effectively used to connect design professionals with fabricators and contractors.
              • The business benefits being generated by using BIM to integrate the complete design-to-delivery workflow for structural and MEP as an efficient, collaborative digital effort.

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              Profiles in Steel: Understanding your options for better building design and construction(Print PDH from the July/August 2017 issue of Informed Infrastructure)

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              Architects and structural engineers today have access to an unprecedented range of steel building system options. Within your reach are system solutions that are tried-and-true as well as innovative and new. While certain systems may not be very familiar to you, they are all well proven in the building design and construction marketplace.

              The following will give you a working knowledge of today’s range of steel building systems, the market trends that are driving them, and the prevailing design and engineering criteria used for systems comparison and selection.

              As seen in the July/August 2017 issue of Informed Infrastructure magazine.

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              Introduction to Designing Corrugated Metal Pipe (CMP) Stormwater Detention Systems
              (Print PDH from the May/June 2017 issue of Informed Infrastructure)

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              The two essential functions of a stormwater management system are to control the 1) quality and 2) quantity of runoff leaving a site. There are various ways to do this; a common method is with an aboveground system in the form of a detention pond, but these take up usable land space. This is not a major issue in rural areas, but in urban environments, land space is expensive, and a loss of land space results in lost revenue.

              As a result, engineers and developers often turn to underground solutions, which take many forms. One of the most common is an underground detention system made from corrugated metal pipe (CMP). These systems are employed on a site to reduce the quantity of stormwater runoff leaving a site by temporarily storing the runoff that exceeds a site’s allowable discharge rate and releasing it slowly through time.

              Designing CMP detention systems is a complex task. This article is not intended to be a complete design guide; it is intended to address three questions engineers often have regarding designing CMP detention systems.

              As seen in the May/June 2017 issue of Informed Infrastructure magazine.

                 

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                Understanding the Impact of Pipe Stiffness on Long-Term Deflections
                (Print PDH from the March/April 2017 issue of Informed Infrastructure)

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                Pipe stiffness in the pipe industry is a standard test that is performed on actual pipe samples to determine their ring stiffness. Many product specifications in the pipe industry require a minimum target pipe stiffness be achieved as a requirement for that standard.

                As seen in the March/April 2017 issue of Informed Infrastructure magazine.

                   

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                  Designing Dam Embankments with Articulating Concrete Block Systems (Print PDH from the January/February 2017 issue of Informed Infrastructure)

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                  Dams are called “installations containing dangerous forces” in International Humanitarian Law; there is potential for great destruction to people, property and the environment in the event of a dam failure. The forces that make dams dangerous also provide essential benefits such as drinking water, flood control, power production, irrigation and recreation. Holding a balance between destructive forces and essential benefits lies, to some degree, in protecting the dam from soil erosion when an overtopping event occurs.

                  As seen in the January/February 2017 issue of Informed Infrastructure magazine.

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                  Helical Design: Code Compliance and Effects of Seismic Activity (Archived Webcast)

                  Originally Aired March 1, 2017. This webcast has expired

                  Helical piles and anchors have been used in construction applications for more than 175 years. The first recorded use of helical piles was in 1836 by Alexander Mitchell in England. The helical pile industry has seen substantial growth in the last 20 years as most practicing engineers have recognized the strength, versatility, and many applications of the system.
                  The popularity of helical piles has grown so much, the International Code Council (ICC) established acceptance criteria AC358 for helical piles in 2007. ICC inducted helical piles into the International Building Code in 2009. However, helical piles were barely mentioned in undergraduate and graduate civil engineering studies.
                  The presentation will cover the design, applications, and building code requirements of helical piles.

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                  Recommendations for Bioretention Media Qualification (Print PDH from the November/December 2016 issue of Informed Infrastructure)

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                  Engineered bioretention media is optimized to filter and/or infiltrate stormwater runoff through a plant-soil-microbe complex. A successful bioretention installation involves oversight—not just onsite, but having a framework in place for transferring raw materials to a blended, commercially installed product. Read this “instruction manual” on how to successfully implement a bioretention media strategy. Then take the accompanying quiz to receive continuing education credit.

                  As seen in the November/December 2016 issue of Informed Infrastructure magazine.

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