The failure of the Stava Valley tailings dams (Northern Italy): numerical analysis of the flow dynamics and rheological properties

Geoenvironmental Disasters

Table 1 Mean velocity and Manning’s roughness coefficient defined by Takahashi (1991, 2007)

Sectional Reach	MeanVelocity [m/s]	Manning’s Roughness Coefficient, n [-]
2-3	18	0.04
3-5	23	0.04
6′-7	31	0.04
7′-8	25	0.04
8-9	22	0.04
9-9″	22	0.04
9″-10	18	0.04
10-10′	11	0.08
10′-12	6.2	0.13
12′-13	6.8	0.12