All public logs

Combined display of all available logs of ASDSO Dam Safety Toolbox. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

17:06, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Design of Siphon Systems (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2017 |abstract=  Since at least the time of the ancient Egyptians, siphons have been a useful tool to transport fluids in conduits by arranging the conduit in an inverted “U” and relying on gravity to eliminate the need for a pump. In the United States, siphons have been used as spillways a...")
17:06, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Natural Resources Conservation Service Dam Design and Dam Safety Resources: Policy, Procedures, and Tools (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2017 |abstract=  This webinar will provide an overview of multiple dam design and dam safety resources available from the Natural Resources Conservation Service (NRCS). The overview will include a presentation on the NRCS history of building dams and dam safety. The policy presentation will foc...")
17:01, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: How to Make Your Emergency Action Plan More Effective (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2017 |abstract=  In the last forty years, dam safety professionals have recognized the importance of preparing emergency actions plans (EAPs) as an effective tool to minimize the consequences of dam failures. In the last 15 years, the National Incident Management System (NIMS) was established a...")
17:01, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Introduction to Nature-Like Fishways for Dams (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2017 |abstract=  Dam-related problems include blockage of fish migrations, drowning hazards, failure hazards, reservoir sedimentation, habitat loss, and tailwater erosion. Some environmental problems can only be addressed through dam removal while other issues, where removal is not a viable opt...")
17:01, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Underwater Installation of Geomembranes (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2017 |abstract=  Rehabilitation of dams with geomembranes has stopped seepage in more than 200 dams worldwide. In the 1990s, the US Army Corps of Engineers recognized that geomembranes could arrest seepage in many structures but many structures in the U.S. could not be dewatered for installatio...")
17:01, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: The Fontenelle Dam Incident 1965 (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2017 |abstract=  Fontenelle Dam incident was, arguably, the largest dam incident in US history that did not result in failure. A large leak developed in Bureau of Reclamation’s new dam and quickly eroded a very large cavity on the downstream slope. It was only through large-scale and prompt i...")
17:01, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Risk Assessment for Levee Projects (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2017 |abstract=  The USACE has been conducting economic risk analyses for evaluating benefit cost ratios for levee projects since the 1960s. With a new focus on life safety, these same analytical techniques are now being used to evaluate priorities for infrastructure investments and required de...")
17:01, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Introduction to Dam Decommissioning (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2016 |abstract=  As dams deteriorate, or as their purpose and benefits diminish, there may come a time when the appropriate action is to decommission the dam. For some dams, this can be a very simple, rapid and inexpensive undertaking. For other dams, it can be a very complex and costly process...")
16:50, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Intro to Tailings Dam and Coal Ash Impoundment Design, Construction and Monitoring: What Can Go Wrong and Right? (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2016 |abstract=  A large difference between water storage dams versus tailings dams and coal ash impoundments is that these industrial structures are always under construction. This provides the opportunity to optimize design and construction but places an emphasis on ongoing evaluation and mon...")
16:50, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Hydrologic Hazards – Estimating Probabilities of Extreme Floods (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2016 |abstract=  Hydrologic hazard curves are critical flood loading inputs for dam and levee safety risk assessments. Over the past decade, some federal agencies have developed and applied new tools and data sets to estimate hydrologic hazard curves, which are graphs of peak flows, volume, or...")
16:50, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: The Practical Use of Geophysics to Assess Dam and Levee Safety (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2016 |abstract=  The webinar consist of two sessions. Session 1 is an overview of geophysical methods applicable to dams and levees, theory behind the methodologies, and the strengths and limitations of each method. This session will also cover what additional investigations, such as drilling,...")
16:45, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: 3-D Effects on Estimation of Gradients, Seepage Flows and Evaluation of Internal Erosion Potential Failure Modes (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2016 |abstract=  This webinar will present the results of 2D and 3D numerical evaluations of seepage conditions around a developing piping defect. An updated model similar to the first 3D numerical model performed at the University of Florida beginning in about 1980 (Townsend, 1981) will be pr...")
16:45, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Cracking and Hydraulic Fracturing in Embankment Dams and Levees (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2016 |abstract=  Cracks are likely to develop in most embankment dams and levees, and not just in those that are poorly constructed. This course will present some of the common conditions that can lead to adverse geostatic stress conditions, cracking, and hydraulic fracturing in embankments. Ca...")
16:45, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Strength Selection for Static Slope Stability Analysis (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2016 |abstract=  This webinar will provide practical guidance on the selection of soil shear strength parameters for static slope stability analysis. Topics covered include stress-strain behaviors of cohesionless and cohesive soils and their relationships to strength selection, drained and undr...")
16:45, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Spillway Conduits - More Than Just a Pipe Through the Dam (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2016 |abstract=  Low-level conduits (pipes) through the base of a dam are the most common spillway for small earthen embankment structures. However, the discontinuity caused by the presence of the conduit creates numerous issues that must be addressed during the design and construction of the l...")
16:45, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Foundation Cutoff Walls for Dams and Levees (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2016 |abstract=  During the last 10 years, there have been unparalleled levels of activity in dam and levee foundation remediation. This has been triggered mainly by the U.S. Army Corps of Engineers’ evaluation of their dam and levee portfolio following the disastrous flooding of New Orleans...")
16:45, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Dam Safety with 3D Weirs (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2016 |abstract=  Inadequate spillway capacity, significant hydrologic loadings on embankments and structures, and operation and maintenance are common dam safety issues, instigating the need for risk-reduction measures and/or rehabilitation. 3D weirs, or weirs with a crest length greater than t...")
16:45, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Intro to the Application of 2D Hydraulic Modeling for Dam and Levee Safety (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2016 |abstract=  Recent improvements in the computational capacity of computers and in the availability of high-quality terrain data have allowed 2D hydraulic models to become highly valuable tools in dam and levee safety analyses. Today, there are several free and commercially-available 2D mo...")
16:26, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Seepage Rehabilitation for Embankment Dams (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2015 |abstract=  This webinar will review the current state of the practice for rehabilitation of embankment dams to address seepage issues. Seepage rehabilitation measures can generally be grouped into two categories: seepage reduction / limitation measures and seepage collection measures. See...")
16:26, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Human Factors in Dam Failure and Safety (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2015 |abstract=  Dam failures typically result from interactions of human and physical factors which extend over years or decades. Understandably, engineers and others involved with dams normally focus on the physical factors. However, because physical systems such as dams are subject to physi...")
16:26, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Rainfall and Dam Safety-From PMP to the 100-Year Storm (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2015 |abstract=  Understanding how extreme storms and their precipitation are analyzed is critically important for dam design and dam safety. This webinar will detail the background of PMP and storm analysis starting with the earliest work completed by the US Weather Bureau (now National Weathe...")
16:26, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Dam Construction Quality Control: Dos, Dont's and Lessons Learned (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2015 |abstract=  The implementation of a successful dam design is predicated on the construction contractor using acceptable construction means and methods when performing the work and the quality control staff performing timely and through inspections. There are many critical work items associ...")
16:26, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Understanding and Managing Plant & Animal Intrusions in Embankment Dams and Levees (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2015 |abstract=  Plant and animal intrusions represent a common but often overlooked threat to the long-term safety of embankment dams throughout the U.S. In fact, these hazards have been attributed to dam failures and near dam failures in the past. Proper identification, treatment, and long-te...")
16:18, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Waterproofing Systems for Dams (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2015 |abstract=  The first geomembranes were installed on dams in 1959 in Italy and British Columbia: both systems were covered. In the 1970’s geomembranes began to be installed on dams exposed. In the next 20 years exposed geomembrane systems would be installed on more than 2 dozen dams, pr...")
16:18, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Event Tree Principles and Applications for Dam Safety Risk Assessment (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2015 |abstract=  Event tree analysis is commonly used in dam safety risk analysis. Event trees are tools used to aid in understanding, analyzing, and communicating dam safety risks and for informing dam safety decisions. Like all other tools they are imperfect and their potential value depends...")
16:18, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Seismic Stability Evaluation of Earth Dams (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2015 |abstract=  Earthquakes represent a hazard to dams in many parts of the United States and therefore are of interest to design engineers and dam safety officials. Evaluation of the seismic stability of these dams to future anticipated earthquakes require an understanding of seismic hazards,...")
16:18, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Designing Slope Protection for Dams and Levees (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2015 |abstract=  Slopes on the upstream side of dams are subject to wind-generated waves. Likewise, levees along river banks experience wind waves, boat wakes and current forces. This webinar will describe how winds produce waves in reservoirs and other enclosed bodies of water. Wave heights an...")
16:18, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Introduction to Hydrologic Modeling Using Geospatial Information (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2015 |abstract=  This webinar will provide an introduction to the application of geospatial information to hydrologic analysis. The field of hydrology experienced its most dramatic period of development from the late 19th century to the mid-20th century. While the theory and equations used to e...")
16:18, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Introduction to Public Safety Risk Evaluation and Treatment for Dams and Levees (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2015 |abstract=  This webinar is designed to provide dam and levee owners, and their specialist consultants, an introduction to a comprehensive program to assess and reduce public safety risk around dams, levees, and powerhouses. In 2011 the Canadian Dam Association, an association similar in...")
16:18, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Earthquake Hazards, Ground Motions and Dynamic Response (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2014 |abstract=  Earthquakes represent a hazard to dams in many parts of the United States and therefore are of interest to design engineers and dam safety officials. The hazard from earthquakes includes strong shaking, fault rupture displacements, reservoir seiche and earthquake-induced landsl...")
16:18, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Rehabilitation of Concrete Dams (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2014 |abstract=  This webinar is the third and final course in the series on concrete gravity dams. The first webinar entitled “Introduction to Concrete Gravity Dams” (July 2012) presented information regarding the types of gravity dams, historic design, and construction practices, as well...")
15:46, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Foundation Preparation and Treatment for Dam Construction (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2014 |abstract=  This webinar will address a wide range of foundation preparation and treatment methods applicable to construction of new dams, rehabilitation of existing dams, and enlargement of existing dams. Topics to be covered include: treatment of surface rock exposures in dam foundations...")
15:46, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Seepage Monitoring and Analysis of Embankment Dams (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2014 |abstract=  Some amount of seepage passes through and under all embankment dams. The collection, monitoring, and analysis of seepage is crucial in the successful execution of any dam safety program and is helpful in deciding if it is expected ambient seepage or indicative of a more serious...")
15:46, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Stepped Chute Spillway Design for Embankment Dams (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2014 |abstract=  Changing demographics in the vicinity of dams has led to hazard creep in a number of dams worldwide. Many of these dams now have insufficient spillway capacity as a result of these changes in hazard classification from low to significant or high hazard. Stepped chutes applied t...")
15:46, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Application of PFMA in Dam Safety (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2014 |abstract=  Failure mode evaluation, or what is now more commonly referred to as potential failure mode analysis (PFMA) for dam safety, has become routine practice for many in the profession. The process became more formally organized by the US Bureau of Reclamation in the early to mid 199...")
15:46, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Developing Operations and Maintenance Manuals for Dams (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2014 |abstract=  This webinar will provide participants with information on the importance of preparing operations and maintenance (O&M) manuals for dams. It will include an overview of some of the key federal agency and state requirements and formats for dam O&M manuals. Operations and mainten...")
15:46, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Potential Failure Mode Analysis as a Dam Safety Tool Part I: Introduction to PFMA (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2014 |abstract=  Failure mode evaluation or what now is more commonly referred to as potential failure mode analysis (PFMA) for dam safety has become routine practice for many in the profession. The process became more formally organized by the US Bureau of Reclamation in the early to mid 1990...")
15:46, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Quality Assurance and Field Inspection for Dam Construction Projects (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2014 |abstract=  Quality control on projects for the construction or rehabilitation of dams is the responsibility of the construction contractor. Contractors have control of the site during construction and are responsible for understanding and complying with the requirements of the contract do...")
15:19, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: How to Communicate Effectively in Any Situation (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2014 |abstract=  ASDSO members are called upon to communicate in many different situations — in presentations to colleagues, testimony before regulatory bodies and legislative committees, and interviews with reporters. Whatever the circumstances, best practices can help to ensure that communi...")
15:19, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Introduction to Armoring Embankment Dams and Earth-Cut Spillways with ACBs (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2014 |abstract=  Over the past 23 years, numerous embankment dams and earth-cut spillways in the United States have been armored with Articulating Concrete Blocks (ACBs) to provide overtopping protection and extend the life of the structures. With the current focus on evaluating and rehabilitat...")
15:19, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Internal Drainage Systems for Embankment Dams (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2013 |abstract=  This webinar covers the use of sand and gravel filter/drainage systems in embankment dams to protect against excessive seepage pressures, internal erosion in cracks or other anomalies, and piping. Excessive seepage pressures can affect embankment stability related to slope slou...")
15:19, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Stability Evaluations of Concrete Dams (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2013 |abstract=  Historically, concrete dam analysis focused much of the attention on material property assumptions, which has been and continues to be important. But more recently, the focus is primarily on the modes of failure experienced by these types of dams. This webinar will present a mo...")
01:00, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Hydraulic Design of Labyrinth Weirs (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2013 |abstract=  Labyrinth weirs are widely used in spillway rehabilitation to upgrade existing dams to meet updated spillway design flood criteria. In addition to increasing discharge capacity, these weirs are also well suited to regulating upstream pool elevations for flood control or at inta...")
00:56, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Terminal Structures and Energy Dissipation at Outlet Works and Spillways (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2013 |abstract=  Effective energy dissipation of flows from outlet works and spillways is an extremely important component in dam safety. Undersized or ineffective structures can lead to damage and failure, possibly endangering the dam or the flow channel and properties downstream. Generalized...")
00:52, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Using Instrumentation for Dam Safety Monitoring (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2013 |abstract=  It is widely accepted that monitoring programs are important for dam safety. Monitoring programs provide the information necessary to understanding the on-going performance of the dam, as well as the ability to detect a change in this performance, which can be critical in ident...")
00:52, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Loss of Life Consequence Assessment for Dam Failure Scenarios (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2013 |abstract=  This webinar looks at the evaluation of loss of life resulting from a dam failure, use of loss of life estimates, hazard classification, improvement of emergency action planning, determination of individual and societal risk, a comparison of loss of life from dam failure to los...")
00:46, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Tolerable Risk Guidelines for Dams: How Safe is Safe Enough (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2013 |abstract=  Tolerable risk guidelines are used to guide the process of evaluating whether or not dam safety risks are low enough. They provide a means of relating dam safety risks to other risks to which people are exposed as a result of technological hazards. While these guidelines should...")
00:46, 19 August 2022 Camrenbt talk contribs created page On-Demand Webinar: RCC Applications in Dam Engineering - What We Have Learned and What's New (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2013 |abstract=  This webinar will focus on the many applications of RCC in dam engineering, including RCC dams, RCC overtopping protection, and RCC use in cofferdams. Other topics to be covered will be RCC for raising and rehabilitating existing concrete dams and RCC for grade control structur...")
23:57, 18 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Legal Responsibilities of Dam Owners, Operators, and Regulators (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2013 |abstract=  This webinar will address the legal responsibilities in: owning and operating a dam under normal conditions, during a flood, or in cases of a breach; devising, testing, and updating emergency action and business continuity plans; and maintaining the dam to minimize the chances...")
23:57, 18 August 2022 Camrenbt talk contribs created page On-Demand Webinar: Evaluation of Seepage Related Potential Failure Modes (PFM's) in Embankments with Emphasis on Outlet Penetrations (Created page with "{{Trainings Template |author=  Association of State Dam Safety Officials |year=  2013 |abstract=  Evaluation of potential seepage failure modes in embankment dams and in particular around outlet works penetrations is a very important aspect of dam safety evaluations. Assessing potential seepage failure modes typically requires designing and evaluating investigation and inst...")