Table Overtopping

Dam breach parameters

Froehlich (2008)

Macdonald and Langridge-Monopolis (1984)

Breach bottom width

215.14 m

356.13 m

Breach side slope

1.0:1

0.5:1

Breach formation time

1.982 hrs

4.36 hrs

Piping

Breach bottom width

136.95 m

148.7 m

Breach side slope

0.7:1

0.5:1

Breach formation time

1.535 hrs

3.81 hrs