2025 ASDSO Annual Conference Proceedings

Individual Abstracts or Papers Available Through the Database
* Abstract Only
** Presentation Only

Opening General Session**

Session 1: Recent Failures and Incidents

Lightning Strikes Twice at Rapidan Dam
Jim Herbert, P.E., Joe Hjerpe, P.E., and TomMacDonald, P.E., Barr Engineering Co.; Ryan Thilges, P.E., Blue Earth County

Hitting the Curve - Riphshin Lake Dam Repairs
Jason Reeves, P.E., S&ME, Inc.

Terror in the San Francisquito Canyon*
Andy Yung, P.E., CFM, BC.WRE, and Neel Salvi, P.E., Walter P Moore; Josh Yung, EIT, Stantec Consulting Services, Inc. 

Session 2: Extreme Rainfall Updates

Updating Precipitation Design Standards for Oregon: Precipitation Frequency and Probable Maximum Precipitation*
Luciana Cunha, Matthew Koszuta, and BenjaminChoat, WEST Consultants Inc; Tony Janicek, Ph.D., P.E., and Keith Mills, OR Water Resources Department

Understanding Tropical Storm Risk in the Appalachian Mountains – An Assessment of Tropical Storm Areal Reduction Factors*
Debbie Martin, Kyle Chudler, Ph.D., and Victoria Sankovich Bahls, RTI International; Mel Schaefer, Ph.D., P.E., MGS Engineering Consultants, Inc.; Miles Yaw, Tennessee Valley Authority 

New Probable Maximum Precipitation (PMP) for Dam Safety – the case of North Carolina
Hadush Seged Hagos, Ph.D., P.E., and William E. Toby Vinson, P.E., CPM, NC DEQ Division of Energy, Mineral and Land Resources; Bill Kappel and Jake Rodel, GISP, Applied Weather Associates

Session 3: Spillway Hydraulic Modeling Tools

Beyond Boundaries: CFD Modeling for Innovative Spillway Design*
Ann Houseman, P.E., and Benjamin Winter, EIT, Hazen and Sawyer 

Suite-ly, Modeling a New Dam – Using a Variety of H&H Tools to Accomplish Multiple Tasks with Different Goals*
David Hayson, P.E., and Daniel Hoffman, P.E., Stantec Consulting Services, Inc 

Optimizing Spillway Rehabilitation: A Multi-Tool Hydraulic Approach at McCloud Dam*
Greg Richards, P.E., CFM, Seth Thompson, P.E., SPRAT I, and Josh Paquet, P.E., SPRAT I, GFT; Abbas Dorostkar, Ph.D., P.Eng, P.E., and Jeff Jukkola, P.E., Pacific Gas & Electric Company; Zac Sharp, Ph.D., P.E., Utah Water Research Laboratory 

Session 4: Construction Lessons Learned

Replacing 5000-lb (2268-kg) Trunnion Pins on a Giant Radial Spillway Gate
Tony Vader, P.E., Grant County Public Utility District

Muskingum River Dam Replacement: Construction Manager at Risk Approach at McConnelsville*
Mike Garver, The Ruhlin Company; James Hilovsky, P.E., OH Department of Natural Resources 

Engineering Oversight Lessons Learned - An Owner's Perspective
Eric Eisinger, P.E., Colorado Parks and Wildlife

 

Session 5: Geotechnical Innovations

Alternative Method to Model Dam Concrete-Rock Foundation Interface Shear Strength
R Craig Findlay, Ph.D., P.E., G.E., BC.GE, Findlay Engineering, Inc.; Gary Dale, P.E., and Jason Clere, P.E., G.E., Brookfield Renewable; Stephen Rabasca, P.E., Soil Metrics LLC

Geotechnical Innovation in Floodwall Design: Addressing Subsurface Challenges in the Dallas-Fort Worth Metroplex
John Briand, P.E., Cory Rauss, P.E., Meryl Higgins, P.E., andGlen Andersen, P.E., CDM Smith; Donovan Blakeley, P.E.,  US Army Corps of Engineers 

Session 6: Decade Dam Failures and Incidents (DDF)

Decade Dam Failures - Update on the 2005 Failure of Hadlock Pond Dam, Fort Ann, NY*
Kevin Ruswick, P.E., CFM, and Michael Quinn, P.E., Schnabel Engineering 

1925 Eileen Dam Failure - Know Your Foundation!
Robb Roy, P.E., Colliers Engineering & Design; Bill Kussmann, P.E., Hatch Associates Consultants, Inc.

Dam Failure Case Studies from the 2015 South Carolina Flood
Carmen Lepsch, P.E., Schnabel Engineering;, P.E., GFT

Session 7: Modeling and More Modeling

Keeping a Level Head: Challenging Level Pool Routing and Other Common Assumptions in Hydrologic and Hydraulic Modeling
Nathan Clymer, P.E., and Benjamin Winter, EIT, Hazen and Sawyer 

The Reverse Roller: Remote Sensing and Modeling Low-head Dams*
Brian Crookston, Ph.D., P.E., Utah State University; Rollin Hotchkiss, Ph.D., P.E., D.WRE, Brigham Young University

Modeling Communications: Phase II – Post-modeling*
Seth Thompson, P.E., SPRAT I, GFT; Devon McLay, P.E., GeoEngineers; Brent Zundel, P.E., CFM, and Michele Lemieux, P.E., MT Dept. of Natural Resources and Conservation 

Session 8: Seepage Evaluation and Remediation

From PFMs to PZ Readings: Considerations for a Dam Seepage Modification
Kyle Blakley, P.E., Stantec Consulting Services, Inc.

Lake Ilo Revival: A Story of Dam Rehabilitation
Paul Perri, P.E., W. W. Wheeler and Associates, Inc.; Dave Hibbs, U.S. Fish & Wildlife 

A Case Study of Design and Construction Challenges of a Soil-Cement Bentonite Hydraulic Cutoff Wall in a Loose Sand Embankment*
Carl Honkala, Carlin Grundemann, P.E., and Michael Carpenter, P.E., GEI Consultants, Inc.; Joshua Ehlich, DeWind One Pass Trenching


Session 9: Spillway Design and Construction

Safeguarding Communities and Agriculture: Tule River Spillway Enlargement*
Ike Pace, P.E., Tetra Tech, Inc; Mostafa Mostafa Mostafa, P.E., US Army Corps of Engineers

A New Concrete Spillway Chute Concept that Addresses Flow Induced and Seepage Potential Failure Modes 
Frederick Lux, P.E., Aubian Engineering Inc.; Paul G. Schweiger, P.E., CFM, GFT; Shawn Perrin, Barnard Construction Company, Inc; and Enrique Farfan, Ph.D., P.E., HDR
 

Session 10: Construction: Alternative Delivery and Construction Risks

What Are We Learning Through Alternative Project Delivery*
Jared Deible, P.E., HDR

Using the Progressive Design Build Model to Balance Risk and Costs when Sizing a Diversion for a Small Dam on a Flashy Watershed*
Greg Shaffer, P.E., CFM, Scott Jones, Ph.D., P.E., Greg Glunz, P.E., andGarret Fosmer, Kiewit

Navigating Design & Constructability Risks During Construction of Secord Dam
Nisheet Reddy, P.E., and Chetan Swarn, P.E., GEI Consultants Inc.; Zachary Servinski and Rusty Friedle, Fisher Contracting Company

General Session: Studying Hurricane Helene: What Have We Learned?

Analysis of Historic Rainfall from Hurricane Helene-Does This Change PMP? *
Bill Kappel and Marty Venticinque, Applied Weather Associates 

Hurricane Helene: A Panel Discussion on Impacts to Dams in Western North Carolina and Eastern Tennessee*
Jonathan Pittman, P.E., and Brendan Stepek, P.E., Schnabel Engineering, LLC; William E. Toby Vinson, P.E., CPM, NC DEQ Division of Energy, Mineral and Land Resources; Dustin Waycaster, Town of Lake Lure; Stan Aiken, P.E., NC DEQ Dam Safety Asheville Region; LeslieCarreiro, City of Asheville; Laura Groce, Tennessee Valley Authority; and Mark McIntire, Duke Energy

Session 11: The National Dam Safety Program; How it started, How it’s going?

Historical Review of President Jimmy Carter’s Role in Dam Safety
Martin McCann, Stanford University

ASDSO Panel on Legislative Advocacy**
Lori Spragens and Cody Holt, ASDSO; John Roche, P.E., MD Department of the Environment; and Mia Kannik, P.E., OH Department of Natural Resources

Session 12: Physical and Numerical Hydraulic Modeling

The State of Using CFD to Calculate Air Entrainment on Spillways
Dan Gessler, Ph.D., P.E., D.WRE, Brian Fox, P.E., andJohn Haywood, Ph.D., Flow Science; Tom Molls, Ph.D., P.E., CA Department of Water Resources; Chris Kissick, P.E., GEI Consultants 

Wet versus dry stability berm erosion embankment overtopping research*
Bryan Heiner, P.E., Barr Engineering; Daniel Livsey, Ph.D., and Sherry Hunt, Ph.D., P.E., USDA - ARS 

Garrison Dam Spillway Modification - CFD Modeling to Evaluate Spillway Overlay Measures with 70 ft of Uplift Resistance (Hydraulic White Paper Series)
Chad Vensel, P.E., Ethan Thompson, P.E., Brian Hall, P.E., D.WRE, and Curtis Miller, P.E., US Army Corps of Engineers 

Session 13: Case Studies in Dam Rehabilitation

Innovative Design for High Head Bulkhead Used in Slots With Multiple Openings
Paul Schiller, P.E., Barr Engineering Co.; Mike Sondag, P.E., Alltech Engineering Corp.; and Madelyn Rubin, P.E., San Francisco Public Utilities Commission

Repurposing a Dormant FERC Exemption: Notre Dame’s Hydropower Development on the St. Joseph River in South Bend, Indiana*
Kevin Siedlecki, P.E., Lawson-Fisher Associates

Improvements at Flat Rock Dam
Kevin Grim, P.E., Ramboll

Session 14: Dewatering and Reservoir Control for Maintenance and Construction

Dewatering, High Risk and Low Reward.*
Andrew Baxter, P.E., P.G., GEI Consultants

Innovative Bulkhead System for Hydraulic Structures
Meredith Shaw, P.E., and Mark Graeser, P.E., Verdantas

Tackling Hydrogeologic Complexity for Construction Dewatering at Bull Lake Reservoir, Wyoming
Erik Blumhagen, LHG, Malcolm Drilling Company, Inc.

Session 15: Low Level Outlet Rehabilitations

Relining Nichols Dam Conduit Using Casing Spacers*
John Sikora, P.E., D.WRE, and Jackson Moloney, P.E., AECOM; John Del Mar, P.E., City of Santa Fe Utilities 

Low-Level Outlet Retrofit at Lake Lure Dam
Josh Parsons, Brendan Stepek, P.E., Charles Johnson, P.E., S.E., and SteveFischer, P.E., Schnabel Engineering; Jason Fischer and Will Lawton, E.I.T., Morgan Corp.

Revitalizing Resilience: How Cured-In-Place Pipe Lining Helps Address Aging Infrastructure
Jennifer Gaines, P.E., Freese and Nichols, Inc.; James Grimes, P.E., Gwinnett County Department of Water Resources 

Session 16: Decade Dam Failures: Programmatic Changes 

Systemic and Underlying Causes of the 1965 Fontenelle Dam Incident: A Manmade Disaster Theory Perspective
Mark Baker, P.E., DamCrest Consulting

Big Boils? Big Problems: The 20th Anniversary of the Incident at Salt Fork Lake Dam
Brianne Cochill, EI, and Karen Cabrera Gomez, OH Department of Natural Resources 

Picking Up the Pieces - The Failure of Walter Bouldin Dam, Its Aftermath, and the Lessons Learned by Alabama Power and FERC*
William Brown, P.E., Federal Energy Regulatory Commission; Bobby Williams, P.E., Tri-L Engineering; Richard Mickwee, P.E., Southern Company

Session 17: Breach Inundation Modeling

2D Dam Breach Modeling Best Practices and Troubleshooting*
Chris Goodell, P.E., BC.WRE, Kleinschmidt Associates

Land O’ Lakes Inundation Mapping: Challenges of Modeling and Mapping an Above Ground Reservoir
Madison Miro and Kevin Chapman, P.E., Hazen and Sawyer 

Manning’s n for 2D Hydraulic Modeling of Dam Breaches
William Barry, P.E., BC WRE, F ASCE, Justin Collins, P.E., PatrickMcMahon, Ph.D., P.E., CFM, Civil and Environmental Consultants, Inc. 
 

Session 18: Dam Removal

Hamilton Dam Removal - Innovative Design and Collaboration to Achieve a Wide Variety of Objectives
Jonathan Scheibly, P.E., PWS, CERP, Michael Sendelbach, P.E., and Jacob Cochrane, P.E., Stantec Consulting Services, Inc. 

Should I Stay or Should I Go - Dam Disposition Feasibility Studies*
Janeen McDermott, P.E., GEI Consultants, Inc.

Thompson Mill Dam Removal - The Intersection of Community Resilience, Environmental Restoration and Public Safety*
Manuela Johnson, CEM, Christopher B. Burke Engineering, LLC

Session 19: Cutoff Walls

Secant Pile Cutoff Wall to Mitigate Flooding at Kentucky's Panbowl Lake
Stan Worst, P.E., Schnabel Foundation Company; Aaron Wallace, P.E., Kentucky Transportation Cabinet 

Back in Time: An Actual Look Inside of a 120-Year-Old Timber Crib Dam*
Timothy Hampshire, P.E., DLZ National, Inc.

Tailoring Cutoff Wall Installation Techniques to the Task 
Michael Arnold, Ph.D., BAUER Foundation Corp.

Session 20: Instrumentation

Seepage Assessment in Embankment Dams Using Active Fiber Optic Sensing Technology
Matthew Walker, P.E., Jason Harvey, P.E., and Ivan Contreras, Ph.D., P.E., Barr Engineering Co 

More Bang for your Buck? Making Instrumentation Worth the Investment
Nicole Wiesner, P.E., Russ Springer, P.E., and Matthew Davis, P.E., Freese and Nichols; and Jennifer Montgomery, North Texas Municipal Water District 

Coupling Hydro-Dynamic and Geotechnical Models with Hyperspectral Imaging for Resilient Dam*
Audrika Nahian, Omer Alzeghoul, and SadikKhan, Jackson State University; Jasim Imran and Austin R.J. Downey, University of South Carolina 

Session 21: Damfailures.org

Kingsley Dam Incident (Nebraska, 1972)*
Tim Gokie, P.E., NE Department of Natural Resources

Carsington Dam*
Michael Bennett, P.E., GFT

Gros Ventre Slide*
Kevin Ruswick, P.E., CFM, Schnabel Engineering

Session 22: Levees

National Levee Safety Program – Capacity Building in the Nation*
Jennifer Laux and Michael Bachand, US Army Corps of Engineers

Our Levees are Failing Us*
Jacob Bench, P.E., CFM, and Dena Barnhouse, P.E., OH Department of Natural Resources 
 

Session 23: Communication and Collaboration for Emergency Preparedness

Improving Collaboration to Benefit Dam Safety and Emergency Management Programs
Tony Subbio, CEM, CFM, PMP, CDM Smith

Emergency Response for Statewide Dams*
James Hilovsky, P.E., OH Department of Natural Resources

Too big or too small? Why communicating at the watershed level might help us solve our flood risk awareness challenges.*
Megan Pierce, P.E., and Katelyn Noland, US Army Corps of Engineers 

Session 24: Spillways and Gates

Cedar Cliff Dam Spillway Upgrade with Giant Fusegates
Hasan Kocahan, PMP, Hydroplus, Inc.; Brad Keaton, P.E., Duke Energy; Ryan Makela, Barnard Construction Company, Inc.; Fares Abdo, P.E., Morgan Corp

North Fork Dam Fusegate Activation – Hurricane Helene*
Aaron Collins, Schnabel Engineering 

Physical Modeling of Valenciano Dam*
Albert Molinas, Ph.D., P.E., and Brett Sollenberger, Hydrau-Tech, Inc.; Christopher Thornton, Ph.D., P.E., Colorado State University; Greg Hebeler, Ph.D., P.E., Josh Myers, P.E., and JustinLennon, P.E., WSP

Session 25: Grab-n-Go

A Comparison of Trencher Method vs. Slurry Trenching and Soil Mixing for Seepage Barriers in Dams 
Charlie Krug, Nathan Coughenour, P.E., and Daniel Ruffing, P.E., Geo-Solutions, Inc. 

Improving Tailings Dam Safety with Near Real-time Piezometer Monitoring*
Summer Sun, Ph.D., P.E., Ray Dorow, and Philip Crouse, Stantec Consulting Services, Inc. 

Influence of Wet-Dry Weathering on Hydraulic Conductivity and Infiltration Rate for Fine-Grained Soils and Weathered Shales 
Calvin Tohm, Ph.D., M.ASCE, South Dakota School of Mines and Technology; Bret Lingwall, Ph.D., P.E., BC.GE, M.ASCE, Bureau of Reclamation

Seismic-Induced Cracking of Earth Dams: Updated Database and Recommendations 
Juan Jimenez-Pirajan, EIT, Purdue University/Stantec; Antonio Bobet, Purdue University

Assessing Change and Uncertainty in Future Flood Estimates with Large-Ensemble Streamflow Projections*
Ganesh Ghimire, Ph.D., Shih-Chieh Kao, Ph.D., Sudershan Gangrade, Ph.D., and Scott DeNeale, Oak Ridge National Laboratory; Mark Christian, Ph.D., and Brenda Brickhouse, Electric Power Research Institute 

How a Barton-Choubey Evaluation can be Used to Better Assess the Effective Friction Angle at Your Dam Foundation’s Rock Interface*
Helen Russell, P.E., Nick Ciomei, P.E., and Emily Erhart, P.E., P.G., Kleinschmidt Associates 

Session 26: Decade Dam Failures: International Failures

130th Anniversary of the Bouzey Dam Failure –The Importance of Internal Uplift Pressure in Stability Design of Gravity Dams
Siavash Sajedi, Ph.D., P.E., GFT 

Understanding Human Factors that Contributed to the Banqiao and Shimantan Dam Failures
Andy Lynch, P.E., CFM, GFT 

Technical Lessons and Regulatory Impact: The 1925 Eigiau and Coedty Dam Failures
Dan McGraw, P.E., Reuben Sasaki, P.E., and Keil Neff, Ph.D., P.E., US Army Corps of Engineers 

Session 27: State Dam Safety Program Updates

Great I Own A Lake *
Whit Montague, P.E., CFM, Arkansas Department of Agriculture, Natural Resources Division; Ben Hunter, BEng, Arkansas Department of Agriculture/ Natural Resources Division 

Regulating Dam Safety in Oklahoma: Updating SOPs to Enhance Enforcement Efforts*
Natalie Orbesen and Emma Moradi, OK Water Resources Board 

Insights, Challenges and Opportunities of the Kansas Dam Safety Program*
Maria Neeland, P.E., Benesch; Terry Medley, P.E., KS Dept of Agriculture 

Session 28: Probabilistic or Probable Maximum Floods

Probabilistic Flood Model to Evaluate Hydrologic Loadings and Evaluate the Operational Conservatisms of the PMP/PMF, An Owner's Perspective
Bruce Barker, P.E., MGS Engineering Consultants, Inc; Josh Gile, P.E., Tacoma Public Utilities; Nicole Novembre, P.E., and Kyle Chudler, Ph.D., RTI International; Mel Schaefer, Ph.D., P.E., MGS Engineering Consultants, Inc. 

Comparison of Two Stochastic Modeling Approaches for PFHA Development
Nicole Novembre, P.E., Ryan Johnson, P.E., Shaun Carney, P.E., and Kyle Chudler, Ph.D., RTI International; Mel Schaefer, Ph.D., P.E., and Bruce Barker, P.E., MGS Engineering Consultants, Inc.; C. Haden Smith, P.E., US Army Corps of Engineers

Probable Maximums Should Probably Have Rare Probabilities: Implications of Modernizing Probable Maximum Precipitation
Derek Kinder, P.E., and David Margo, P.E., US Army Corps of Engineers 

Session 29: Roller Compacted Concrete

Midwestern Dam Rehabilitation with Artesian Conditions… What could go wrong?
Matthew Marquis, P.E., and Michael Becker, P.E., OH Department of Natural Resources

Application of RCC for Small Dam Projects - Rehabilitation of Rawson Hill, Bear Creek and Beaver Creek Dams*
Paul Schweiger, P.E., CFM, GFT

Lake Williams Dam Rehabilitation - Unique Placement of Roller-Compacted Concrete*
Ethan Miller, P.E., and Paul Schweiger, P.E., CFM, GFT; Brett Steers, The York Water Company 

Session 30: Decade Dam Failures: Tailings Failures

Unmitigated Disaster, Val di Stava Dam Failure*
Clint Brown, P.E., Engineering Analytics

A River Runs Through It - The 1975 Failure of Mike Horse Tailings Dam
Ben Webster, P.E., PMP, and Jonathan Pittman, P.E., Schnabel Engineering

2015 Failure of Fundao Dam*
Tom MacDougall, P.E., RJH Consultants, Inc.; John France, P.E., D.GE, D.WRE, M. ASCE, JWF Consulting LLC
 

Session 31: Complex Ownership Issues

Loecy Pond Dam Improvements: A collaboration with multiple dam owners*
AJ Smith; and George Carleton, Verdantas 

Establishing a Capital Program*
Jeremy Wenner, P.E., James Hilovsky, P.E., and Steven Berezansky, OH Department of Natural Resources 

Building a municipal dam safety program and restoration case studies on dam embankments in Charlotte, NC.*
Rebecca Deal and Kara Becker, City of Charlotte Storm Water Services 

Session 32: Hydrology in an Uncertain World

Cracking Complex Conundrums: Hydrologic and Hydraulic Modeling of Newark’s High Hazard Dams*
Rex Gamble, EIT and MiaHildebrandt, P.E., CFM, GZA GeoEnvironmental Inc. 

Improving dam safety with operational AI hydrologic forecasts: sharing case studies and insights*
Alex Truby, Upstream Tech 

Basic Strategies to Perform Calibration of a Hydrologic Model (Win TR20) for Purposes of More Accurate Analysis Related to Planning/Design of NRCS Dams for Their Rehabilitation
Geoffrey Cerrelli, P.E., USDA - NRCS

Session 33: Operational Case Studies

Rubber J-Bulb Seals Used for High Head Bulkhead on Corroded Surface
Paul Schiller, P.E., Barr Engineering Co.; Mike Sondag, P.E., Alltech Engineering Corp.; and Madelyn Rubin, P.E., San Francisco Public Utilities Commission

Title Transfer of Two Dams in California from Federal to State Regulatory Jurisdiction
Casey Phradichith, Nicolas Oettle, Ph.D., P.E., G.E., and David Gutierrez, P.E., G.E., GEI Consultants, Inc.; Joshua Zupan, Ph.D., P.E., Consultant (formerly GEI); Anthony Morales, P.E., Associate Engineer (formerly Contra Costa Water District)

Florida's New Dam System Rules*
Tracy Woods, P.G., FL Department of Environmental Protection

Session 34: Hurricane Katrina 20 Years Later

20 Years Later: Reflecting on the Impact of Hurricane Katrina*
Meghan Walter, USDA - NRCS; Lee Wooten, GEI; EricHalpin, Halpin Consulting LLC; Bill Kussmann, P.E., Hatch Associates Consultants, Inc.; Matthias Lindenbauer, P.E., HDR; Julien Cohen-Waeber, Exponent; Walter Baumy, ARCADIS; and Dr. Richard Varuso, US Army Corps of Engineers 

Session 35: Risk for Evaluation, Prioritization, and Design

An Updated Methodology for Performing Screening Level Risk Evaluations for Large Portfolios: Part 1 – Tool Development and System Response Probability Estimation
Jennifer Pitcher, P.E., Daniel DeVaun, P.E., and Kerri A. Puckett, P.E., GEI Consultants; Lucas Trumble, P.E., Michigan EGLE Dam Safety Unit 

Prado Dam Spillway Risk Informed Structural Design
Steve Dominic, P.E., Jerry Casto, P.E., and Melinda Dirdal, P.E., US Army Corps of Engineers; and Patrick Luff, P.E., Dewberry

A Decade of RIDM: Lessons Learned from the First Ten Years of Modern Risk Management Practices at BIA*
Matthew Young, P.E., CFM, Bureau of Indian Affairs; Andrew Lockman, P.G., Bureau of Indian Affairs (contractor)

Session 36: Rehabilitation Case Histories

From Severe Deterioration to a “Butte”: Rehabilitating an 1890s Dam with Post-Tensioned Anchor Bars and a Concrete Overlay*
Aimee Corn, P.E., GFT; Jim Keenan, Butte-Silver Bow; Justin Evertz, Great West Engineering 

Fortifying History: Ensuring Structural Stability and Flood Resiliency at Lake Hamilton Dam*
Seth Thompson, P.E., SPRAT I, Ethan Miller, P.E., andPaul Schweiger, P.E., CFM, GFT; Zachary Tallmadge, P.E., Aqua Ohio; Matthew Marchisello, P.E., Aqua Pennsylvania

The Reconstruction of Clam Falls Dam: Upgrading and Repurposing a Century-Old Hydropower Facility to Meet Contemporary Demands*
Ethan Smith, P.E., and Austin Rieder, P.E., Ayres Associates; Rod Polk, Polk County Public Works Division

Poster-Lightning Talks

Bridging Deterministic and Probabilistic Methods for Dam Safety Evaluation
Giselle Aviles and Rocio Segura, Ph.D., Santa Clara University; Gabriel Alcantar, P.E., Mott Macdonald 

Design Approach for a Spillway Replacement in Weak California Rock
Nicolas Oettle, Ph.D., P.E., G.E., Christopher Bain, Ph.D., ScottYehl, P.G., CEG, Todd Crampton, P.G., CEG, and IqbalAhmed, Ph.D., P.E., G.E., GEI Consultants, Inc.; Jacob Moeder, P.E., Irvine Ranch Water District 

Effect of lime-treatment on earthen embankment failure processes*
Daniel Livsey, Ph.D., and Sherry Hunt, Ph.D., P.E., USDA - ARS; Bryan Heiner, P.E.

Images from Below Direct Decisions from Above*
Brian Schroeder, P.E., Collins Engineers, Inc.

Modifying Existing Low-Head Dams to Fish Passable Rock Rapids
Janeen McDermott and Samuel Prentice, P.E., GEI Consultants 

O’Shaughnessy Dam – An Owner’s Reflection on 100-years of Service*
Stephen Kinsley, P.E., City of Columbus

Off Channel Reservoirs: Unique Challenges and Lessons Learned*
Janis Murphy, P.E., Freese and Nichols, Inc.

Precision is the backbone of engineering—but what if it’s also a barrier*
Dave Michelson, UNC Asheville's NEMAC; Jacob Smith, NC Department of Environmental Quality 

Recent Updates of the National Web-based Decision Support System for Water Infrastructural Security (DSS-WISE Web)*
Mohammad Al-Hamdan, Ph.D., Marcus McGrath, Nuttita Pophet, Ph.D., PaulSmith, NoorDibou, and Ujwal Srinivasa, National Center for Computational Hydroscience and Engineering/University of Mississippi; GokhanInci, Ph.D., P.E., Federal Emergency Management Agency 

Restoration and Innovation: The FishPass project on the Boardman-Ottaway River
Megan Fryer, EIT, and Jason Plum, P.E., AECOM; Daniel Zielinski, Ph.D., P.E., M.ASCE, Great Lakes Fishery Commission 

Sediment Management at Versailles Lake Dam, Indiana Using Historical Bathymetric Data*
Elizabeth Johnson, Cody Fleece, and JimMoyer, P.E., Stantec Consulting 

Smallwood Dam: Innovative Solutions for Phased Cofferdam Loading Challenges
Rusty Friedle and Zachary Servinski, Fisher Contracting Company; Chetan Swarn, P.E., and Nisheet Reddy, P.E., GEI Consultants Inc.

Unlocking Dam and Levee Safety: How the Corps Water Infrastructure Financing Program (CWIFP) is Revolutionizing Project Funding*
Adéle Braun, P.E., and Kevin McDonald, US Army Corps of Engineers 

Unlocking Insights: Assessing State Approaches to Dam Removal*
Katherine Schmidt, American Rivers; Brian Graber, American Rivers 

USACE Civil Works Data Management During Construction – An Integrated Approach Towards Dealing with Construction Data for a Levee Construction Project
Meredith Beswick, P.E., P.G., Todd McKenney, and Timothy Williams, P.E., G.E., Kleinfelder; Manuel Perez, GISP, and Nagesh Malyala, P.E., Stantec Consulting Services, Inc.; Stephen Motoike, Jeffery Crovitz, P.E., and Daniel Kwon, Ph.D., P.E., US Army Corps of Engineers 

Willisburg Lake Dam Spillway Design – The Importance of a Multi-Faceted Design Approach*
Jesse Pope, P.E., CFM, Dhaivat Patel, P.E., and Robert Hatton, P.E., Stantec Consulting Services, Inc.; Glen Alexander, P.E., KY Division of Water

A Study of Flood Protection Systems in the Susquehanna River Basin
Rachel Kaintz and Kaleigh Yost, Ph.D., The Pennsylvania State University