Lawn Lake Dam, located in Rocky Mountain National Park failed suddenly and catastrophically on a sunny day in July 1982, and resulted in over $30 million dollars in damage and the loss of 3 lives. This webinar will explore the history of the dam, construction features responsible for the failure, the failure event and emergency response, the long legal process to assign liability for the failure and the overall impacts to the Town of Estes Par...

The on-demand course is intended to give the participants an understanding of cavitation on chutes and spillways. The course will be introduced with a video of a case study that illustrates some of the fundamentals of cavitation and an explanation of why cavitation causes damage. Following the video, a Power Point presentation will discuss the beneficial effects of aeration on preventing damage due to cavitation. The participants will be guide...

The on-demand webinar will describe the evolution of Prestressed Rock Anchor technology as applied for over 50 years to dams in North America. This evolution will be presented through an analysis of the successive phases of the PTI "Recommendations" documents, which constitute the referenceable standard of care. Special attention will be paid to issues associated with long-term performance and the so called "Legacy Anchors." Five Learning Obje...

This on-demand webinar will start with the most basic seepage concepts and finalize on actual evaluation of piezometric data for earth dams and levees. Simple basic seepage ideas using high graphic illustrations will be the means to teach all concepts in this webinar. Also, numerous difficult concepts will be fully explained using high graphic simple illustrations. For example, course will also provide unique insight into how seepage changes w...

This course is intended to provide guidance on the proper selection and installation of waterstops for hydraulic structures. This course will discuss the various types and applications of waterstops and discuss the necessary design constraints such as site constraints, joint types, head pressures, and concrete clearances and cover. The course will emphasize the need for thorough structure detailing to ensure proper clearances and placement loc...

Analyses of expected seismic performance of earthen dams subject to potential liquefaction hazard are routinely performed for high hazard dams. The State of Practice has increasingly evolved from simplified methods to the use of fully-coupled seismic pore pressure generation and nonlinear seismic deformation analyses (NDA) using either finite difference or finite element analysis frameworks. To evaluate the accuracy and reliability of these ND...

WinDAM software estimates the erosion and breach outflows from overtopping flows and internal erosion flows affecting earthen embankments. This webinar will provide an overview of the WinDAM model and the various inputs needed. The webinar will also cover output from WinDAM. The webinar will target users and designers more than researchers. Five Learning Objectives of This Course: How could overtopping affect my earthen dam? How could internal...

A very important USDA regional office, the 2019 show is hosted by the USDA and is held once each year to keep all key USDA Technology personnel updated on the latest products and services available. All agencies within the USDA in KC are promoted to and attend, such as Risk Management, Farm Services and more. The expo is also promoted through the KC Federal Executive Board targeting personnel from GSA, Commerce, DoT, FAA and more. An extremely...

In celebration of the 10th Annual Summit, EcoDistricts is partnering with the City of Pittsburgh and regional leaders to bring the Summit to one of the most dynamic cities in the U.S. Pittsburgh is often cited as one of the world’s most dramatic “turn around” stories – a region rich in history and economic might that has reemerged from the collapse of the American steel manufacturing industry to rise again as a center o...

Technology is transforming nearly every aspect of our modern lives, and farming is no exception. The produce on your table tonight will have gotten there faster, fresher and more cost-effectively thanks to leading-edge technology in agriculture. However, farmers and farming face great threats including the production uncertainty of a changing climate and ecosystem impacts on the health of soils. Agriculture research and the application of tec...