Which component must be installed before utilizing a stormwater conveyance channel?

The installation of channel lining is crucial before utilizing a stormwater conveyance channel because it serves several key functions that ensure the effectiveness and longevity of the channel. Channel lining provides a stable surface that can reduce erosion and sedimentation by minimizing the impact of water flow on the channel's banks and bed. It also helps maintain the hydraulic capacity of the channel by preventing the loss of material and maintaining the desired flow path.

With a properly installed channel lining, the conveyance system can efficiently transport stormwater without leading to infrastructure damage or environmental degradation. This is particularly important in areas prone to heavy rainfall where the conveyance channel will be subject to significant water flows. In summary, without properly installing the channel lining first, the stormwater conveyance system may be compromised, leading to ineffective stormwater management and potential flooding issues.