The Carbon River and Upper Puyallup Basin Plan:
This will be an update of the Pierce County Storm Drainage and Surface Water Management Plan, adopted in 1991 (the 1991 Plan). The 1991 Plan sets out policies for how to manage stormwater runoff in unincorporated Pierce County. It identifies capital improvement projects for urban drainage basins to reduce flooding and control the adverse effects of stormwater on water quality and other aspects of aquatic habitat, such as the accumulation of fine sediment in stream bottoms. As with other rural areas in 1991, no capital projects were identified for the Carbon River and Upper Puyallup River basins.
The Carbon River and Upper Puyallup River Carbon will concentrate on areas draining to the tributaries of the rivers, not the mainstem Carbon River and Upper Puyallup River. Mainstem flooding is covered in a separate plan call the Puyallup River Basin Comprehensive Flood Control Management Plan. The effects of mainstem flooding on tributaries will be described in the basin characterization. Recommended solutions emerging from analysis of these conditions will be forwarded to the update of the Flood Control Management Plan.
