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 and the Incident Command System (ICS) has become a more important emergency response tool. As a result, EAP formats, procedures for testing dam EAPs and training personne...

Internal erosion causes about half of all failures of water-retaining earth embankment dams. Similar statistics apply to levees. Internal erosion occurs when the hydraulic loads imposed by water seeping through the pores or flowing through cracks and openings in the soils in embankments and their foundations generate erosive forces sufficient to overcome the resistance to erosion of those soils. The knowledge of internal erosion processes has...

At a height of 770 feet, Oroville Dam is the tallest dam in the United States. On February 7, 2017, a section of the concrete chute slab of the service spillway at Oroville Dam failed during spillway discharge. Several days later, as the California Department of Water Resources was evaluating and managing discharges through the damaged service spillway during a large rainfall event, the emergency spillway activated for the first time in the pr...

This course will present potential failure modes for chute spillways and ways to design these spillways to minimize the potential for failure. 1. Understanding failure modes such as cavitation and hydraulic jacking that can affect chute spillways. 2. How to evaluate potential spillway design and construction details that could lead to failure modes. 3. How to evaluate potential spillway failure mode4. Understanding design details that can hel...

Many dams and levees have embankment drains, structure underdrains, and relief wells to control seepage through and beneath the dam and piezometers to monitor the performance of these features. Dam and levee owners, managers, and maintenance staff may be uncertain about the function of these features and what maintenance is required. This webinar will summarize seepage principles and terminology in layman's terms and describe the purposes and...

Oroville Dam is the tallest dam in the United States. On February 7, 2017, a section of the concrete chute slab of the service spillway failed during spillway discharge, and several days later the emergency spillway was activated for the first time in the half-century history of the dam, resulting in rapid and severe erosion of the hillside below the emergency spillway weir, and prompting precautionary evacuation of nearly 190,000 downstream r...

Dam Safety 2017 is the leading conference in the United States dedicated to dam and levee safety engineering and technology transfer and will once again bring together nearly 1,000 individuals dedicated to advancing the dam and levee safety community. Join us for three full days of educational programming, networking, specialty workshops, amazing field trips, an exhibit hall with over 100 exhibitors and sponsors, and so much more.

This seminar provides comprehensive instruction in inspection and evaluation techniques for dams. The principles, concepts and procedures taught will be readily adaptable to any organization conducting dam inspections and evaluating their compliance with current design standards. The target audience is state and federal dam owners/regulators, local and private dam owners/operators, consulting engineers and personnel responsible for the operati...

The Southeast Region of the Association of State Dam Safety Officials invites you to attend its 2017 Regional Conference, April 18-20 at The Music City Center in downtown Nashville, Tennessee. The conference program will focus on issues of importance to dam owners, government officials and engineers in the southeast States. Both general and concurrent technical sessions, as well as timely panel discussions, and an informative exhibit show will...

COURSE OBJECTIVES This seminar provides comprehensive instruction in inspection and evaluation techniques for dams. The principles, concepts and procedures taught will be readily adaptable to any organization conducting dam inspections and evaluating their compliance with current design standards. The target audience is state and federal dam owners/regulators, local and private dam owners/operators, consulting engineers and personnel responsib...