Schedule
2025
Tuesday, April 29th
12:00 AM

Proceedings of the 5th International Seminar on Dam Protections Against Overtopping

Protections 2025

12:00 AM
9:30 AM

The OVERCOME Project: Overall Perspective and Progress

Jean-Robert Courivaud, EDF CIH
Mark W. Morris, HR Wallingford
Maxime Boucher, geophyConsult
Laurent Del Gatto, EDF CIH
Christophe Picault, CNR
Kamal El Kadi Abderrezzak, CNR
Rafael Morán Moya, Universidad Politécnica de Madrid
Miguel Angel Toledo, Universidad Politécnica de Madrid

9:30 AM
10:45 AM

Can Computational Fluid Dynamics be the Basis for the Next Generation of Breach models?

M. Hassan, HR Wallingford Ltd
K. V. Chua, HR Wallingford Ltd
C. Goff, HR Wallingford Ltd
S. Haeri, HR Wallingford Ltd
M. Morris, HR Wallingford Ltd
R. Coombs, CC Hydrodynamics Ltd

10:45 AM

Enhancing Embankment Dam and Levee Resilience Against Overtopping Erosion: The Muscatine Island Levee Project

W. R. Thompson, WatershedGeo
J. T. Leyh, Klinger & Associates, P.C.

10:45 AM
1:30 PM

Conclusions From the Performance Assessment of Industry Applicable Internal Erosion Initiated Breach Prediction Models

Mark W. Morris, HR Wallingford
Jean-Robert Courivaud, EDF CIH

1:30 PM

Enhancing Understanding of Breach Processes Using Computational Fluid Dynamics and Laboratory Tests

K. V. Chua, HR Wallingford Ltd
M. Hassan, HR Wallingford Ltd
C. Goff, HR Wallingford Ltd
M. Morris, HR Wallingford Ltd
H. Haddad, Compagnie Nationale du Rhône

1:30 PM
3:45 PM

Design of a Wave Overtopping Simulator With Variability in Simulated Flows

N. van der Vegt, University of Twente
B. Hofland, Delft University of Technology
J. J. Warmink, University of Twente
V. M. van Bergeijk, Deltares
S. J. M. H. Hulscher, University of Twente

3:45 PM

Skewed Approach Flow to the Spillway of an Embankment Dam

C. I. Thornton, Colorado State University
J. Ellis, Colorado State University
F. Alsultan, Colorado State University
C. Volt
R. Ettema, Colorado State University

3:45 PM
Wednesday, April 30th
10:45 AM

2D Probabilistic Scour Model for Predicting the Time-Rate of Scour for Spillways and Overtopping Dams Based on the Erodibility Index Method

M. F. George, BCG Engineering
G. W. Annandale, George W. Annandale, Inc

10:45 AM
1:30 PM

Ahead of His Time? A Reanalysis of the Air-Tunnel Stepped Chute Studies of Marcos José Tozzi

T. L. Wahl, Retired, Bureau of Reclamation
J. A. Higgs, Bureau of Reclamation
J. Matos, Instituto Superior Técnico

1:30 PM

Hydraulic Measurements in a SAF Stilling Basin With a Stepped Chute for Embankment Protection

B. M. Crookston, Utah State University
N. Young, Utah State University

1:30 PM

Physically Based Assessment of Flow Resistance in Stepped Chutes

T. L. Wahl, Retired, Bureau of Reclamation
B. J. Heiner, Agricultural Research Service
K. R. Smithgall, Bureau of Reclamation
C. C. Shupe, Bureau of Reclamation
J. Falkenstine, Bureau of Reclamation

1:30 PM
3:45 PM

Breach Modeling Flume Tests

R. M. Monteiro-Alves, Universidad Politécnica de Madrid
R. Moran, Universidad Politécnica de Madrid
M. Á. Toledo, Universidad Politécnica de Madrid
M. Morris, HR Wallingford
C. Picault, Compagnie Nationale du Rhône
J-R. Courivaud, Electricité de France

3:45 PM

Estimation of Breach Hydrograph Resulting From Dam Embankment Failure due to Internal Erosion or Overtopping: Comparison of Simplified Methods With Real-Case Failure Data and Recommendations

Laurent Del Gatto, EDF Hydro Engineering Center
Jean-Robert Courivaud, EDF Hydro Engineering Center

3:45 PM