Table 1: Estimated peak flow following the collapse of Gasper dam

Location Channel area (m2) Hydraulic radius Slope Roughness Discharge m3 s-1
Gasper Mill 104 2.251 0.0127 0.05 402
Pen Mill 94 1.46 0.0145 0.045 310
Pierston Fm 77 1.283 0.005 0.045 142