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In 2020, the City of Charlotte and Mecklenburg County, North Carolina, adopted a new Stormwater Pollution Control Ordinance which included, for the first time, a prohibition on the use of pavement products containing more than 0.1% polycyclic aromatic hydrocarbons (PAHs) by weight. This ordinance change was adopted following several years of research, local monitoring, and correspondence with cities with similar prohibitions and outreach to local sealant manufacturers and other local stakeholders that this ordinance can potentially impact. The purpose of this prohibition is to reduce the amount of PAHs entering local streams from stormwater runoff with the goal to reduce in-stream PAH values below levels that are considered toxic to aquatic life. This presentation will summarize the research that led Charlotte-Mecklenburg to take this concern seriously, the results from local monitoring, and the stakeholder process used to adopt the new ordinance language.
Read MoreTo say that significant developments in pavement data collection technologies and artificial intelligence- (AI) based processing methods have taken place over the past three years is an understatement. Industry standards have not kept pace with technological advancements, and agencies attempting to procure these services have been left in a bind. While these technologies may provide better data than previous technologies, it is critical that agencies understand the benefits and limitations of these technologies—especially those implementing AI—and how best to procure the technologies. AI is a tool, not a panacea. This presentation will describe the benefits and limitations of 3D pavement imaging, AI-based data processing, and mobile light detection and ranging (LiDAR) technologies. The attendees will learn how to best integrate data collected with these technologies into their pavement and asset management systems. Attendees will also learn how to best procure and quality control/quality assurance (QC/QA) test the data from these technologies.
Read MoreAcross the country, water distribution and wastewater collection systems are reaching the end of their asset life, and creative solutions are needed to restore capacities and rehabilitate the structures cost-effectively and efficiently. Several rehabilitation tools are available such as pipe bursting, spray-on liners, and liner inserts that can be used for system rehabilitation. As many of these existing utilities are in areas that have developed greatly since their original installation, the selection of rehabilitation techniques must consider factors including access, traffic volumes, potential service disruptions to customers, impacts on the community, and cost/benefit considerations. In many instances, the familiar dig-and-replace is no longer a viable option, leaving trenchless and near trench methods as the remaining viable options.
Read MoreThe International Public Works Director Roundtable is an annual interactive session that targets public works directors (PWDs) or their equivalent across North America. Using the tagline “Where Directors Go to Grow” and their logo, organizers plan to build on the successes in Toronto, Phoenix, Minneapolis, Orlando, Kansas City, and Seattle. The International Public Works Director Roundtables continuously rank as one of the most popular and highest-rated sessions each year. This session is designed to be participatory and maximize engagement with all the directors present. Directors are seated at roundtables encouraging interaction with each other. This session enables directors from across the world to network and learn from each other’s experiences.
Read MoreGiven the complexity of field conditions, some aspects of liquid performance may seem to be a “black box,” and at times it can be difficult to know how to best use them based upon field experience alone. This challenge is increased by the fact that we use liquids in a variety of ways, from anti-icing to pre-wetting to direct liquid application (DLA) deicing, and liquids perform differently depending on the application. This presentation will show how we can apply the basic science of liquid deicers to complement our field-based knowledge to better select the right liquid and rate for different conditions and application types. Topics will include how liquids perform differently in anti-icing, pre-wetting, and DLA; the important liquid properties for these different types of application; how we can utilize freezing point curves as powerful tools to predict liquid performance; and how we can apply the basic science to guide the use and expectations of brine additives and blends.
Read MoreKnowledge experts will discuss why a smart irrigation system is a sound choice for your lawn and landscape program. The presenters will discuss the benefits of water conservation and the benefits…
Read MoreAny organization’s most important asset—its staff—needs maintenance and attention just as urgently as its physical assets. Its workforce may be subjected to stress from external factors such as the pandemic…
Read MoreHonored with the first distinction of historical designation in the City of Phoenix, Arizona, the downtown Roosevelt Neighborhood has architectural milestones still visible today. As one of the first “streetcar…
Read MoreThe future of solid waste collection vehicles is exciting. In fact, it’s electric! Truck manufacturers are making big pushes to adopt electric waste collection trucks. Many communities are moving towards…
Read MoreDue to the continuous rise of chlorides being detected in the drinking waters in the Northern Virginia region, salt reduction is needed as soon as possible. The speaker will present details of Fairfax County’s journey to successful salt reduction program development and implementation, along with best management practices.
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