It's a Small World: Managing Our Water Resources

Reservoir Sedimentation and Sustainability, (Timothy Randle, Sean Kimbrel and Kent L. Collins, Bureau of Reclamation )

Dam Safety and Resilient Water Management: A Case for Dynamic Reservoir Operations, (Michael McMahon, HDR )

The Nebraska Department of Natural Resources Coordinated Efforts in Flood Flows, (Kristen Obermueller, Bob Beduhn and John Engel, HDR)

Linear Weir Size Scale Effects: A look at Flat Top Weirs, (Blake Tullis, Utah State University; and Kedric Curtis, Jones and Demille Engineering)

Physical Model of Spillway and Reservoir Debris Interaction, (Kent Walker, Jaron Hasenbalg and Kelly Brom, Bureau of Reclamation)

Boundary Dam Spillway No. 1 TDG Modifications, John Werner and James Rutherford, Hatch; (Andrew Bearlin, Seattle City Light; Peter Friz and Jeff Johnson, Hatch; Daniel Kirschbaum, Joe Groeneveld, Seattle City Light; and Justin Arnold, Alden Hydraulic Laboratories)

Approaches to Estimating Individual Risk for Dam Safety Tolerable Risk Evaluation, (David S. Bowles, RAC Engineers and Economists, LLC; and Jason Needham, USACE)

Minimizing Bias in Geologic and Geotechnical Aspects of Risk Evaluation for Dams and Levees, (Kerry D. Cato, California State University; and Derek S. Morley, USACE)

The Common Cause Adjustment in Dam Safety Risk Analysis: Scope, Purpose, and Applicability, (Dom Galic, Bureau of Reclamation)

Environmental Considerations in Dam Decommissioning, (Kelly R. Schaeffer, Kleinschmidt Associates)

Hydraulic Dredging of the Strontia Springs Reservoir — Lessons Learned (Douglas Raitt and Brett Cochran, Denver Water)

Dam Decommissioning — Unique Approach by Conversion to a Levee, Zachary Whitten, Stantec The Prospects for Climate Scenarios n Hydropower Operations, (Yulia Zakrevskaya, SNC-Lavalin Inc; and David Huard, Ouranos, Inc.)

A Comprehensive Approach to Probabilistic Hydrologic Hazard Assessment and its Use to Support Risk-Informed Decisions, Shaun Carney, Riverside Technology, Inc.; (Keil Neff, Tennessee Valley Authority; and Mel Schaefer and Bruce Baker, MGS Engineering)

Meteorlogical Data Visualization and Analysis Using HEC-MetVue, Fauwaz Hanbali, USACE Big Dam in a Small World: Reassessment of the Spillway Design Flood of Lake Sakakewea, (Joshua Melliger, USACE)

Application of Regional Hydrologic Criteria in the Rocky Mountains to Estimation of the PMF in Alberta, (John Menninger, Seifu Guangul, Dan Hoffman and George Sabol, Stantec; and Syed Abbas, Alberta Transportation)

Failure Mode Analysis – Insights and Lessons Learned for the Foundation of a Successful Dam Safety Management Program, (Frank L. Blackett and Douglas D. Boyer, Federal Energy Regulatory Commission)

Epistemic vs Natural Uncertainty in Dam Safety Decision Making: Is it Fair Play?, (Ignacio Escuder-Bueno, Universitat Politècnica de València; and Adrián Morales- Torres and Jessica Castillo-Rodríguez, iPresas)

Risk Analysis Consequence Estimation for a Large System of Dams: Our Experiences from TVA Projects, (Michael M. Crouch and Anurag Srivastava, RTI International; and Morgan D. Ruark, Tennessee Valley Authority)

Application of Risk Assessment to an Emergency Levee Design in an Urban Environment, (Petros Armenis and Malcolm Barker, GHD Pty Ltd ; and Peter Christensen and Graham Harrington, Christchurch City Council)

Vibration Free Resonant Sheet Pile Driving in Dykes and Levees, (Dane Reelie and Matthew Janes, Resonance Technology International Inc.)

Construction of Borinquen Dam 1E for the Panama Canal Expansion, (Lelio Mejia, Geosyntec; James Toose, AECOM; and Jorge Fernandez, Panama Canal Authority)

Tsaile Dam — A Complete Approach Unearths a Safer Dam, (Stephen Brown, Kleinfelder)

Estimating the Reservoir Stage-Frequency Curve with Uncertainty Bounds for Cherry Creek Dam Using the Reservoir Frequency Analysis Software (RMC-RFA), (Haden Smith and John F. England, Jr., USACE)

Recent Paleoflood Analyses for USACE Risk- Informed Dam Safety Evaluations, (Keith I. Kelson, Christina M. Leonard, Brian M. Hall, and John F. England, Jr., USACE)

Risk Informed Freeboard Evaluation, (Gregory S. Karlovits and David A. Margo, USACE
A State Perspective on Tailings Dam Regulation and a Role for USSD and ASDSO, Charles Cobb, Alaska Department of Natural Resources)

A Centrifuge Study of Co-Mixed Mine Tailings and Waste Rock Deposits, (Nonika Antonaki, WSP|Parsons Brinckerhoff; Tarek Abdoun, Rensselaer Polytechnic Institute; and Inthuorn Sasanakul, University of South Carolina)

Freeboard Assessment for Long Embankment Dams, (Mike Gerlach, Stantec)

Replacement of Clear Lake Dam: Overcoming Challenges Constructing an RCC Dam on a Soil Foundation, (Steve Jamieson, W. W. Wheeler & Associates, Inc.; Bruce Cotie, Xcel Energy; and Don Lopez and John Treacy, W. W. Wheeler & Associates, Inc.)

Dewatering — How to Address this Potential Achilles Heel for Construction, (John W. France and G. Richard Bird, AECOM; Gregg Batchelder Adams, Corps of Engineers; and Jessie Drayton Unterberg, AECOM)

Unique & Detailed Draft Tube Slab Analysis, (Jesse Kropelnicki, Kareem Bynoe and Kevin Finn, WSP | Parsons Brinckerhoff; and David Schreck, Brookfield Renewable Energy Group)

Core from Rock, Challenges of Core Construction for a Large High Hazard Dam, (Michael Miller and Efrain Rondinel-Oviedo, MWH, now part of Stantec)

Fail Safe Design for Gated Structures Construction and Rehabilitation, (Peter Davis and Mathew McGuire, HDR)

Dams Inlet/Outlet Works Rehabilitation Program, (Jack Husted, Sterling Klippel and Keith Lilley, Los Angeles County Department of Public Works)

Best Practices in a Tainter Gate Rehabilitation Program, (Matt Moses and Layne Bukahir, Freese and Nichols, Inc.)

Emergency Shutoff Valves, (Kishen Prathivadi, Sewer Authority Mid-Coastside)

Offstream Reservoir Earthen Dam Seepage Systems — Design and Construction Challenges, (Randall Bushey, CH2M)

Latest Compilation of Internal Erosion Incidents at Bureau of Reclamation Dams, (William O. Engemoen, Bureau of Reclamation)

Modeling of Internal Erosion in Earthen Embankment Dam, Al Preston, Geosyntec Consultants; (Keil Neff, Bureau of Reclamation; and Chunling Li and Lucas de Melo, Geosyntec Consultants)

Turbid Discharge Incident at Cannonsville Dam, (John H. Vickers; NYC Environmental Protection; and William H. Hover, GZA GeoEnvironmental, Inc.)

Freezing and Thawing Durability of Laboratory and In-Situ Roller-Compacted Concrete Test Specimens, (Timothy Dolen, Dolen and Associates; and Veronica Madera, Bureau of Reclamation)

Parametric Layout of Double-Curvature Arch Dams Using DIANA Finite Element Software, (E. Goulas, G. Schreppers and M. Partovi, DIANA FEA BV; and R.M. Gunn, Swiss Federal Office of Energy)

Study of Uplift Pressure Effect in Roller Compacted Concrete Gravity Dam, (Hichem Mazighi and Mustapha Kamel Mihoubi, National School of Hydraulic Engineering, Algeria; and Khaled Ghaedi and Zainah Ibrahim, University of Malaya, Iran)

Soil-Structure Interaction Dynamic Analysis for an Existing Old Earth-Rock Fill Dam with Concrete Core, (Mahmood Seid-Karbasi, Upul Atukorala, Herb Hawson and Bruce Downing, Golder Associates Ltd.)

RCC Post Construction Core Testing and Data Analysis For San Vicente Dam Raise Project, (James Stiady, Kleinfelder; Andrew Oleksyn, San Diego County Water Authority; Michael Rogers and Glenn Tarbox, MWH, now part of Stantec; Thomas Reynoldson, Kleinfelder; and Gerard E. Reed III, Wade Griffis and Jim Zhou, San Diego County Water Authority)

Reconstruction of the Matala Spillway: Hydrotechnical and Safety Aspects, (Ahmed Bouayad, SNC-Lavalin)

Decommissioning Outdated Fish Bypass Systems and Preparation for Concrete Retrofit on Lower Granite Lock & Dam, (Dirk deGroot, Global Diving & Salvage, Inc.)

Sand Secant Pile Chimney Filter Installation at Pine Creek Dam (Bob Faulhaber and Michael Arnold, Bauer Foundations)

Execution of a Cut-Off Wall at the Dead Sea – Unique Conditions Require Unique Solution, (Franz-WernerGerressen, Bauer Maschinen GmbH; Gai Lehrer, Y Lehrer Engineering Ltd.; and Israel Christian Scholz, Wayss & Freytag Spezialtiefbau GmbH)

Catawba Dam: The Long Road and Construction Update (Dennis Hogan, Black & Veatch)

Water-Filled Bladders, an Innovative Bearing Interface for Arch Dam Bracing (Alexandre Lochu, EDF-CIH)

Eductors — The Essential Alternative in Complex Dewatering Applications (Adam Richards and Harry Bagherzadeh, Griffin Dewatering)

Application of Intelligent Compaction to Embankment Dam Construction (Robert V. Rinehart, Bureau of Reclamation)

Update No. 3 of the Calaveras Dam Replacement Project (John Roadifer, Michael Forrest and Erik Newman, AECOM; and Daniel Wade, Susan Hou, Tedman Lee and Carman Ng, San Francisco Public Utilities Commission)

Validated Integrated Compaction Monitoring at TVA’s KIF Coal Combustion Product Stacking Facility (David J. White, Pavana Vennapusa and Brendan FitzPatrick, Ingios Geotechnics, Inc.; Jason F. Hill and Nicholas McClung, TVA; and Eric Hageman, HDR)

To Air is Human; To Succeed, Divine — Evolutionary Research on Grout Enriched RCC Air Entrainment (Jeremy Young, Schnabel Engineering; and Eric Musselman, Villanova University)

Stability Analysis of a Concrete-Faced Rockfill Dam Using Parametric Evaluations (Christopher Conkle, Geosyntec Consultants)

Estimating the Peak Friction Angle of Sandy Soils In Situ with State-Based Overburden Normalized SPT Blow Counts (Robert A. Jaeger, GEI Consultants, Inc.; and Ian P. Maki, California DWR)

Comparison Analysis of the Behavior of Rock- Fill Dams with Clay Core at the Variation of Water Level in the Reservoir (Ljupcho Petkovski and Stevcho Mitovski, Sts Cyril and Methodius University)

Using Non-Intrusive Geophysical Techniques in Embankment Dam and Levee Risk Assessment, (Justin Rittgers, Cassandra Wagner and Bryan K. Simpson, Bureau of Reclamation)

Impact of Glacial Till Deposits — Structural Analysis of Green Mountain Dam (Hillery Venturini, Bureau of Reclamation)

Using HEC-RAS 2 Dimensional Capability for Simplified Rapid Dam Break Analysis (Wesley Crosby, USACE)

Hydraulic Modeling of a Complex Dam and Reservoir Project: A Case Study of Two Rivers Dam, (Stephanie Doyal, USACE Rainfall‐Runoff Modeling for the Garrison Dam Drainage with HEC‐HMS, Jeff Harris, Kevin Denn and Melissa Larsen, WEST Consultants, Inc.)

An Innovative Temporary Bulkhead for the Ruskin Dam and Powerhouse Upgrade Project, (Jorge Marín, Dragados Canada Inc.; Saman Vazinkhoo, British Columbia Hydro; Rafael Ibáñez-de-Aldecoa, Dragados USA Inc.; and Mark Mallet, Flatiron Constructors Canada Ltd.,)

Risk and Uncertainty Features in HEC‐ResSim (George Modini and Fauwaz Hanbali, USACE)

Methodology Applied for Mapping Flooded Areas of the Lajeado HPP, (Pedro Pupim, Energias de Portugal and Universidade Estadual Paulista, Ilha Solteira; and Mauricio Santini and Milton Dall’Aglio, Universidade Estadual Paulista, Ilha Solteira)

Leveraging Multi-Sensor Hydrologic Data for Model Validation (Kevin J. Ruswick and Gregory J. Daviero, Schnabel Engineering; and Jonathon Ruff, City of Plattsburgh, NY)

Design of Levee Modifications to Accommodate Long-Term River Scour (Justin Dominguez and James Nickerson, GEI Consultants, Inc.)

Detection of Levee Voids at Aqueduct Crossings Using Geophysical Imaging Techniques (Zhihua Li and Atta Yiadom, East Bay Municipal Utility District)

Risk Analysis in a Levee Safety Context: The Upper Wood River Levee Case History (Chris J. Redell and Jose R. Lopez, USACE)

Effects of Compaction on Erodibility Characteristics of Levees Due to Overtopping, (Ali Asghari Tabrizi, Schnabel Engineering; and M. Hanif Chaudhry and Jasim Imran, University of South Carolina)

Preventing Catastrophic Failure of Underwater Infrastructure: Condition Assessments by ROV (Bill Sherwood and Bob Clarke, ASI Group ‐ ASI Marine)

Automated Data Acquisition System Basics for Dam Safety Instrumentation Monitoring (Peter Zimmerman, Paul Booth and Greg Dutson, Canary Systems, Inc.)

Failure of the Acude da Nacao Earth Dam: A Probabilistic Perspective (Danielli de Melo Moura, Purdue University; Rodrigo Borela, Georgia Tech; Gabriela Alvarado, Purdue University; Wilson Espinoza, Georgia Tech; and Philippe L. Bourdeau, Purdue University)

Operation and Maintenance of an Instrumentation Program (Amanda Sutter, USACE)

FERC Best Practices for Dam Safety Performance Monitoring (Will Brown, Eric Kennedy, Justin Nettle, Emeruwa Anyanwu, Eric Gross, Jim McHenry and David Olson, Federal Energy Regulatory Commission)

Calculation of Threshold Limits for Dam Safety Instrumentation (Jack Husted, Travis Wylde and Sterling Klippel, Los Angeles County Department of Public Works)

Somerset Dam – Innovative Remote Monitoring for Time-Sensitive Breach Detection (Jerry Cross and Yogi Sookhu, Gotham Analytics; and Jud Donaghy, TransCanada)

Modeling Dam Breaches and Flood Inundation Using HEC-RAS 5.0’s New 2D Capabilities (D.L. Silvertooth, USACE; and M. Meshkat, Amec Foster Wheeler Environment & Infrastructure, Inc.)

Estimating the Probable Maximum Flood for Whittier Narrows Dam Using a 2D Hydrodynamic Modeling Approach (Brian M. Hall, Haden Smith and Reuben Sasaki, USACE)

When an Adjacent Watershed Inundates Your Offline Reservoir: Ukumehame Reservoir Dam Removal Challenges and Design (Andrew J. Lynch, Stewart S. Vaghti and Dean B. Durkee, Gannett Fleming, Inc.)

Atoka Dam and Spillway Modifications (Patrick Miles, Brad Kirksey and John Rutledge, Freese and Nichols, Inc., and Sam Samandi, John L. Hare and Andrew Mishler, Oklahoma City Water Utilities Trust)

Use of the Conditional Mean for Improved Prediction of Ground Motion Intensity Measures for Embankment Dams (Richard J. Armstrong, California State University, Sacramento)

Seismic Deformation Analysis of Blue Ridge Dam, (Glenn J. Rix and Lucas de Melo, Geosytec Consultants, Inc.; and Christopher L. Saucier and Michael A. Morrison, TVA)

A Case History Evaluation of State of Practice for Seismic Deformation Modeling of Earthen Dams (Khaled Chowdhury, University of California, Berkeley; Vlad Perlea, AECOM; Raymond B. Seed, University of California, Berkeley, Michael Beaty, Beaty Engineering, LLC; Ethan Dawson, AECOM; and George Hu, USACE)

Comparison of Two Constitutive Models for Simulating the Effects of Liquefaction on Embankment Dams (Jack Montgomery, Auburn University; and Sam Abbaszadeh, MWH, now part of Stantec)

Geospatial Tools for Routine Dam Safety Monitoring and Response Applications During Emergencies (Yogesh Prashar, Atta B. Yiadom, Elizabeth Bialek and Rachel Wong, East Bay Municipal Utility District Special Considerations when Installing Automated Instrumentation at a Site with Access Limitations, William Walker, USACE)

Instrumentation and Information Management at Boone Dam (Rozh Ameen, Tennessee Valley Authority; and Raphael Siebenmann, and Jamey Rosen, Geosyntec Consultants)

Recent Extreme Storms and Their Relation to PMP (Bill Kappel, Doug Hultstrand and Geoff Muhlestein, Applied Weather Associates)

Needs to Update Probable Maximum Precipitation for Determining Hydrologic Loading on Dams (Chandra Pathak, USACE)

Site Specific Probable Maximum Precipitation Development (Jeff Harris, WEST Consultants, Inc.; and Ben Rohrbach, USACE)

Advances in Watershed Modeling Inputs and Methods for Dam Safety Risk Analyses (Jason Caldwell, Nicole Novembre, Katie Laro and Tye Parzybok, MetStat, Inc.; Bruce Barker and Mel Schaefer, MGS Engineering Consultants, Inc.; and George Taylor and Wayne Gibson, Applied Climate Services)

Seismic Evaluation of Lookout Point Embankment Dam in Oregon – Cascadia Subduction Zone Implications (Andrew D. Kost and Kenji Yamasaki, Cornforth Consultants, Inc.; and David H. Scofield, USACE)

Performance of Fena Dam During the 1993 Guam Earthquake (Lelio H. Mejia, Geosyntec Consultants)

Seismic Evaluation of the Remediated Isabella Auxiliary Dam (George Hu, David C. Serafini and Henri V. Mulder, USACE; and Vlad Perlea, USACE (Retired))

Seismic Remediation of Perris Dam Using CDSM, (Wen Yan (Grace) Chen, Michael Driller and Steven Friesen, California Department of Water Resources Controlled Blasting for the Red Rock Hydroelectric Project, Rachael V. Bisnett, MWH, now part of Stantec; James Valentyn, Ames Construction; and Nicholas Johnson, Hoover Construction Co.)

Upriver Dam Spillway Rehabilitation, (Ray Trudgeon, James H. Rutherford, Steve Burns, Val Kovalishyn, Ccee Chan and Nikou Jalayeri, Hatch)

Lakeside Ranch Stormwater Treatment Area – Lessons Learned During Design and Construction, (Danielle Neamtu, Stephen Whiteside and Stephen Blair, CDM Smith)

Investigating the Structural Safety of Cracked Concrete Dams (Glenn S. Tarbox, MWH, now part of Stantec; Robin Charlwood, Robin Charlwood & Associates, PLLC; and Chris Hayes, CEATI International)

A New Approach for the Design of the Köro
ğlu RCC Arch/Gravity Dam,
(
Quentin Shaw, ARQ Consulting Engineers Upgrade and Spillway Modifications at Santa Anita Dam, Sterling E. Klippel, Los Angeles County Department of Public Works; Vik Iso-Ahola, Glenn S.Tarbox and Martina Gelo, MWH, now part of Stantec; and George Manole, LACDPW
)

Understanding the Performance of Aging Infrastructure: A 99-Year-Old Multiple Arch Dam,
(
Vik Iso-Ahola, Glenn S.Tarbox, Mohammadreza Mostafa, Sean Ellenson, Munit Bector and Ali Rasekh, MWH, now part of Stantec
)

Seepage Distress and Canal Repairs on the California Aqueduct
(
Leslie F. Harder, HDR; Jeanne Kuttel, Joseph Royer, Timothy Wehling, Joseph Burke, Robert Black, Michael Driller, Christina Kashiwada and Rob Barry, California Department of Water Resources; and Raphael A. Torres, California DWR (retired)
)

Geomembranes to Waterproof Embankment Dams
(
John Wilkes, Carpi USA and Carpi Tech Canada; and Alberto Scuero and Gabriella Vaschetti, Carpi Tech
)

Geotechnical Investigation of South Carolina Flood
‐Damaged Dams after the 2015 October Rainfall Event (Inthuorn Sasanakul, Sarah L. Gassman, Charles E. Pierce, William Ovalle, Ryan Starcher, Emad Gheibi, and Mostaqur Rahman University of South Carolina)

Rough River Dam: Phase 1B Exploratory Drilling and Grouting Program (Conrad Ginther, Black & Veatch; Dmitri Ivanov and Doug Horvath, Advanced Construction Techniques; and Rolando Benitez, RIZZO Associates_

Design and Repair of a Power Intake Gate Sealing Surface Under Challenging Constraints (Mike Carney and Don Thompson, Tetra Tech, Inc.; Roland Lwiindi, North South Power Company; and Eli Lundberg and Joshua Phillips, Tetra Tech, Inc.)

Post‐Tensioning in an Underwater Environment: Wanapum Dam — Monolith 4 Spillway Repair (Paul Krumm, Nicholson)

Balancing Water Resources and Power Generation for the Metlakatla Indian Community (Jesse Hutton and Scott Korab, Ballard Marine Construction)

A Performance-Based Evaluation of Post- Tensioned Anchors Embedded Within a Concrete Gravity Dam, Tae Ha Park (Samantha Hoang, Jonathan Lum; and Ziyad Duron, Harvey Mudd College)

On the Use of Discrete Lumped Element Modeling for Insight into Concrete Dam Behavior (Jonathan Lum, Samantha Hoang, Tae Ha Park and Ziyad Duron, Harvey Mudd College; and Guy Lund, Gannett Fleming, Inc.)

Shear Strength of Concrete Lift Joints from Extensive Lab Testing Compared to Theoretical Results (Dan D. Curtis, HATCH Ltd., Husein Hasan, Tennessee Valley Authority; and Gurinderbir S. Sooch, HATCH Ltd.)

Integrating a Multidisciplinary Field Investigation to Improve Assessment of Internal Erosion (Cassandra M. Wagner, Justin B. Rittgers and Bryan K. Simpson, Bureau of Reclamation)

Laboratory Investigation of Backward Erosion Piping into Constricted Seepage Exits (John Rice and Ibrahim A. Ibrahim, Utah State University)

Evaluation of Internal Erosion Scenarios in an Embankment Dam (R.J. Fannin, University of British Columbia; and M. Li and C. Anderlini, British Columbia Hydro)

Monitoring San Vicente Dam Raise During Initial Fill (Andrew Oleksyn, San Diego County Water Authority; Nathan Grima, City of San Diego Water Department; Anna Kolakowski, California Department of Water Resources; Larry Rodrigues, City of San Diego Water Department; and Jim Zhou, San Diego County Water Authority)

First Filling Instrumentation Monitoring of the Folsom Dam Auxiliary Spillway Control Structure, (Kenneth R. Pattermann and George Hu, USACE)

Effect of Antecedent Groundwater Level on Piezometric Response During Flood Events, (Chun-Yi Kuo, Richard B. Hockett and Troy S. O’Neal, USACE)

Numerical Sediment Transport Modeling of Operations at Paonia Reservoir, Colorado, (Sean Kimbrel, Bureau of Reclamation)

Impact of Climate Change on Sediment Accumulation in the Reservoirs of Embankment Dams: Case Study, Baldhill Dam, North Dakota, (Bahareh Shoghli and Yeo Howe Lim, University of North Dakota)

Sediment Transport Through Lake Clarke and Lake Aldred, (Jonathan M. G. Viducich and Martin J. Teal, WEST Consultants, Inc.)

A Direct Finite Element Method for Nonlinear Analysis of Semi-Unbounded Dam-Water- Foundation Rock Systems, (Anil K. Chopra and Arnkjell Lokke, University of California)

Numerical Assessment of Hydrodynamic Loads Induced During Seismic Interaction Between Reservoir and Concrete Dam (Jerzy Salamon, Bureau of Reclamation; and Jonna Manie, DIANA FEA BV)

Seismic Back Analysis of Monticello Arch Dam – Blind Prediction Workshop and Additional Analyses (Emmanuel Robbe, EDF Hydro Engineering Center)

Leak Detection In Earth Dams and Levees Using Optical Fiber Distributed Temperature Sensors, (Maxime Tatin and Vincent Lamour, Cementys; Stéphane Bonelli, Irstea; and Aurélie Garandet, Compagnie Nationale du Rhône)

Elephant Butte Dam UAV Data Collection and Photogrammetry (Matthew Klein, Bureau of Reclamation)

Proposed Guidelines for Conducting a Performance-Based Evaluation of a Concrete Dam, (Samantha Hoang, Tae Ha Park, Jonathan Lum and Ziyad Duron, Harvey Mudd College; and Guy S. Lund, Gannett Fleming, Inc.)

Reality Capture for Dam and Hydroelectric Facilities (Adam Serock, HDR)

To Release or Not to Release? Dam Operation Modeling Using Gridded Short‐Term Forecast Rainfall, Maged Aboelata, AECOM USACE CWMS: Case Studies of Water Management Decision Support Tools (Ben Zoeller and Nathan Lefkovitz, Amec Foster Wheeler)

Systems-Based Risk Analysis of Lake Mendocino Forecast‐Informed Reservoir Operations with HEC‐WAT (Matthew McPherson and Leila Ostadrahimi, USACE)

HEC-ResSim 3.3 — New Features to Support Complex Studies (Joan Klipsch, USACE)

Non-Linear Time Domain Analysis of Ruskin Dam in LS-DYNA Including Reservoir- Foundation-Structure Interaction (O. Penner, B. Bergman, S. Razavi-Darbar and D. Queen, BC Hydro; P. Léger and Martin Leclerc, École Polytechnique Montréal; and Yannick Boivin, Tetra Tech)

Boca Dam Spillway Nonlinear Analysis and Validation Study (Jennifer E. Huggins, Roman Koltuniuk and Miguel Rocha, Bureau of Reclamation)

Nonlinear Seismic Evaluation of Perris Dam Outlet Tower (Yusof Ghanaat and Zachary Harper, Quest Structures, Inc.)

Nonlinear Seismic Analysis of an Arch Dam Subjected to Very Intensive Earthquake Loading (Gurinderbir S. Sooch and Dan D. Curtis, HATCH Ltd.)

U.S. Levee Safety Coalition and International Community of Practice, Recent Activities and Updates (Elena Sossenkina, HDR; and Michael Sharp and Noah Vroman, USACE USACE Levee Portfolio Report, Noah Vroman, USACE)

Levee Safety Guidance Comprehensive Document Review, Michael Sharp, USACE Inventory and Review of the Nation’s Levees (Jamie McVicker and Cathi Sanders, USACE)

Levee Safety Practices in the Keystone State (Andrew J. Orlovsky, Pennsylvania Department of Environmental Protection)

Simplified Nonlinear Seismic Analyses of Gravity Dams (Elisa Messio, Wenbo Duan and Najib Bouaanani, Polytechnique Montréal; and Benjamin Miquel, Hydro- Québec)

Strontia Springs Dam: Methods to Better Understand Seismic Behavior (Aimee L. Corn and Guy S. Lund, Gannett Fleming, Inc.; and Darren J. Brinker and Erin Gleason, Denver Water)

Cracking in Thin Arch Concrete Dam – Nonlinear Dynamic Structural Analysis (Sherry Hamedian and Roman Koltuniuk, Bureau of Reclamation)

Managing Threats Through Effective Security Programs (J. A. Gloschat and A. C. Baehr, Gannett Fleming)

Unmanned Aerial Vehicles – A Public Agency Approach to Deployment and Protection (Katharine Killeen and John Rizzardo, California Department of Water Resources)

The Economics of Dam Security Post 9/11 and the Threat to Consumer Confidence (Alexander B. Shannon, CH2M)

Seismic Vulnerability Analysis of Slag Cement- Cement-Bentonite Seepage Cutoff Walls for Levees (Vlad Perlea, AECOM; Khaled Chowdhury, USACE; Mary Perlea, AECOM; and Michael Kynett, USACE)

Advances in Design Procedures for Relief Well Lines in Variable Urban Settings (Robert A. Jaeger, Richard A. Keizer, Jr. and Graham C. Bradner, GEI Consultants, Inc.; and Joseph Weber and Mark Stanley, HDR)

Evaluation and Design of Irregularly-Positioned Relief Wells (Joseph Weber and Mark Stanley, HDR; and Robert Jaeger and Graham Bradner, GEI Consultants, Inc.)

Explaining Pore Pressure Changes Due to Piping Through Changes in Hydraulic Conductivity, (Carolyne Bocovich, Colorado School of Mines; Willem Kanning, Deltares; and Minal Parekh and Michael Mooney, Colorado School of Mines)

Design and Construction of Feather River West Levee Improvements (Christopher Krivanec and Les Harder, HDR; and Michael Bessette, Sutter Butte Flood Control Agency)

Comparison of Nonlinear Finite Element Analysis Methods Used to Simulate Post- Tensioned Anchorage in Concrete, Vojislav Cvijanovic (Mark Schultz and Blake Dolve, California Department of Water Resources)

Structural Inflection Points, and How They Enhance the Understanding of Structural Safety (Guy S. Lund, Gannett Fleming, Inc., Kevin Marshall, Grant County Public Utility District; and Todd Barber, Southern Company)

Pseudo-Nonlinear Finite Element Analysis of Concrete Gravity Dams (J. Taylor Perkins, Stantec; Husein A. Hasan, Tennessee Valley Authority; and Daniel A. Gilbert, Stantec)

Importance of RCC Mixture Lab Studies for the Design of Large Dams (A. Garduno, M. Montero and F. Ballhausen, Comision Federal de Electricidad)

Flood Risks from Spillways: Modeling and Communicating Non-Dam-Failure Impacts to Native American Tribes (Rinda Tisdale, Matthew Young and Chris Clopper, Bureau of Indian Affairs)

City of Dubuque, Iowa: Defining Emergency Actions with a Levee Breach Evaluation (Andrew McCoy, HDR; Deron Muehring, City of Dubuque; and Rusty Jones, HDR)

Public Safety and Unauthorized Extreme Activities at Dams (Steven Barfuss, Utah State University; Brian M. Crookston, Schnabel Engineering; and Kade Beck and Ryan Weller, Utah State University)

Public Safety and Social Media (Sharon Nicole Roach, Federal Energy Regulatory Commission)