Erratum for “Characterization of the Overtopping Flow through the Downstream Shell of Rockfill Dams” by Ricardo Monteiro-Alves, Miguel Á. Toledo, and Rafael Morán

Variable $k_{\mathrm{eq}}$ is the equivalent Darcy’s coefficient of permeability (${\mathrm{L}·\mathrm{T}}^{-1}$), $g$ is the acceleration of gravity (${\mathrm{L}·\mathrm{T}}^{-2}$), and $H$ is the height of the dam (L). By mistake, the correspondent $\beta$ coefficients of Eqs. (32) and (33) were calibrated using $k_{\mathrm{eq}}$ in ${\mathrm{cm}·\mathrm{s}}^{-1}$ instead of ${\mathrm{m}·\mathrm{s}}^{-1}$. So, to maintain $k_{\mathrm{eq}}^{*}$ dimensionless, the corresponding coefficients should be multiplied by a factor of 100.

Regarding the practical implications of this error, Fig. 13(b) is still correct because estimations using Eq. (32) were obtained using $k_{\mathrm{eq}}$ in ${\mathrm{cm}·\mathrm{s}}^{-1}$ along with the original $\beta$ coefficient. Regarding the discussion of the results in section “Assessment of the Emergence Point in the Hell Hole Dam,” in the first paragraph $L_e^{*}=0.358$ (not 0.436) and $y_{L_e}=24.0\mathrm{m}$ (not $29.2\mathrm{m}$). In the second paragraph of the same section, the difference in calculating $y_{L_e}$ entering $Z=1.3$ instead of $Z=3.0$ in the formula of $k_{\mathrm{eq}}$ [Eq. (25)] is $2.369\mathrm{m}$ (instead of $0.026\mathrm{m}$).