Hydraulic Project Approvals.
Any activity that will use, divert, obstruct, or change the natural flow or bed of any of the waters of the state must first obtain a Hydraulic Project Approval (HPA) from the Department of Fish and Wildlife (WDFW). Conditions attached to approval of an HPA may include specific mitigation requirements, such as the placement of woody debris to compensate for woody debris removed in the initial work. The adequacy of the proposal for the protection of fish life is the only ground upon which an HPA may be approved, denied, or conditioned.
The WDFW must consider the following factors when requiring the placement of woody debris as a condition of an HPA for work needed after an extreme weather event or natural disaster: