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| HYDRAULIC PROJECT APPROVAL | ||||
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| Requirement | Description | Authority CFR, RCW, WAC |
Additional Information | MDL No. |
| Hydraulic Project Approval | Hydraulic Project Approval (HPA) A permit required for projects that use, divert, obstruct, or change the natural flow or bed of any state waters (e.g. culvert work, realignment, bridge replacement). JARPA can be used. | RCW 77.55.100; WAC 220-110-030 | PE-D-31.04 | |
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