Join us on April 9, from 12:00 PM - 2:00 PM Eastern for Modeling Tailings Dam Failures with 2-Phase FLow. This webinar will cover the following: Failure modes of a tailing dam. Discussion of recent tailings dam failures. Use of Tailings Dam Tool and regression equations to estimate volume releases. Simulate tailings dam breach including tailings material and water volume using a two-phase flow model. Predict downstream mudflow inundation. Simu...

Join us on March 12, from 12:00 PM - 2:00 PM Eastern for Intrusive Activities in Dams and Levees – Are They Worth the Risk of Creating a Flaw? The U.S. Army Corps of Engineers has updated its regulation ER 1110-1-1807, Drilling and Invasive Activities at Dams and Levees, and related guidance based on what has been observed and learned during the last nine years of reviewing drilling program plans. This webinar will describe the update, w...

Join us on February 13, from 12:00 PM - 2:00 PM Eastern for Triaxial Lab Testing for Earth Dams. The triaxial test is the premier laboratory test to evaluate shear strength conditions for earthen embankment dams. This test is common practice in geotechnical engineering but requires a good understanding of the different laboratory steps and procedures. This webinar will present concepts of the triaxial test as it applies to embankment dams. Dif...

This webinar will include a discussion of common challenges with the design review process for dam safety projects and present strategies to improve the efficiency and effectiveness of the process with a focus on early and regular engagement of the owner, regulator, and designer. Learning Objectives of This Webinar: Pitfalls to avoid during the design review process. Strategies to improve the efficiency of the design review process. Independen...

Five Learning Objectives of This Course: Scour of rock is a dam safety concern that requires meaningful quantification It is possible to predict the scour potential of rock using data normally available for dam design High-resolution remote sensing and monitoring can facilitate improved scour assessment Course attendees should develop an understanding of processes and key drivers/controls for scour of rocks Course attendees should be able to e...

This webinar will review the design and construction of filters and drains for embankment dams. Specific topics covered will include 1) principles of filters and drains, 2) locations and configurations of filters and drains in embankment dams (for both new dams and dam rehabilitations) , 3) design guidelines for filters and drains, 4) evaluations of filters and drains in existing embankment dams, and 5) practical considerations for design and...

This webinar will provide an overview of multiple dam design and dam safety resources available from the USDA of 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 focus on key dam design and dam safety elements in the NRCS General Manual, the National Engineering Manual and NRCS directives process. The presentation on NRCS de...

Potential failure modes analyses (PFMA) was first used in dam safety over twenty years ago and although thousands of PFMA workshops have been conducted since it was first introduced, the use and application of PFMAs is still mostly limited to larger federal agencies and occasionally by others on larger projects. PFMA is a tool and a framework to evaluate dam and levee safety. It has fundamentally changed the way many now approach assessing and...

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 option, can be remediated by dam modification and nature-like fish passage. Traditional fish passage projects have typically focused solely on passage of single or few lar...

With the release of HEC-RAS 5.0 (and newer versions), the Hydrologic Engineering Center (HEC) has added the ability to perform two-dimensional (2D) hydrodynamic routing to the HEC-RAS computer model. This webinar will provide an overview of the new HEC-RAS 2D tools and solution processes and the basic capabilities of the HEC-RAS 2D model. The 2D flow modeling can be accomplished by adding 2D flow area element. This is similar to adding a stora...