A rectangular channel has a gradual contraction in width from \(59 \mathrm{ft}\) to \(30 \mathrm{ft}\) and a bed level drop of \(6 \mathrm{in}\). below the upstream channel bed, which the increased velocity caused by the contraction scoured. If the upstream and downstream flow depths are both \(10.1 \mathrm{ft}\), compute the discharge in the channel.