Chapter 220-660 - Hydraulic code rules
- Section 220-660-010 - Purpose
- Section 220-660-020 - Instructions for using chapter 220-660 WAC
- Section 220-660-030 - Definitions
- Section 220-660-040 - Applicability of hydraulic project approval authority
- Section 220-660-050 - Procedures-Hydraulic project approvals
- Section 220-660-060 - Integration of hydraulic project approvals and forest practices applications
- Section 220-660-070 - Changes to hydraulic project approval technical provisions
- Section 220-660-080 - Mitigation requirements for hydraulic projects
- Section 220-660-090 - Technical provisions
- Section 220-660-100 - Freshwater habitats of special concern
- Section 220-660-110 - Authorized work times in freshwater areas
- Section 220-660-120 - Common freshwater construction provisions
- Section 220-660-130 - Stream bank protection and lake shoreline stabilization
- Section 220-660-140 - Residential and public recreational docks, piers, ramps, floats, watercraft lifts, and buoys in freshwater areas
- Section 220-660-150 - Boat ramps and launches in freshwater areas
- Section 220-660-160 - Marinas and terminals in freshwater areas
- Section 220-660-170 - Dredging in freshwater areas
- Section 220-660-180 - Sand and gravel removal
- Section 220-660-190 - Water crossing structures
- Section 220-660-200 - Fish passage improvement structures
- Section 220-660-210 - Channel relocation and realignment
- Section 220-660-220 - Large woody material placement, repositioning, and removal in freshwater areas
- Section 220-660-230 - Beaver dam management
- Section 220-660-240 - Pond construction
- Section 220-660-250 - Water diversions and intakes
- Section 220-660-260 - Outfall structures in freshwater areas
- Section 220-660-270 - Utility crossings in freshwater areas
- Section 220-660-280 - Felling and yarding of trees
- Section 220-660-290 - Aquatic plant removal and control
- Section 220-660-300 - Mineral prospecting
- Section 220-660-305 - Mineral prospecting involving motorized or gravity siphon equipment
- Section 220-660-310 - Tidal reference areas
- Section 220-660-320 - Saltwater habitats of special concern
- Section 220-660-330 - Authorized work times in saltwater areas
- Section 220-660-340 - Intertidal forage fish spawning bed surveys
- Section 220-660-350 - Seagrass/macroalgae habitat surveys
- Section 220-660-360 - Common saltwater construction provisions
- Section 220-660-370 - Shoreline stabilization in saltwater areas
- Section 220-660-380 - Residential and public recreational docks, piers, ramps, floats, watercraft lifts, and buoys in saltwater areas
- Section 220-660-390 - Boat ramps and launches in saltwater areas
- Section 220-660-400 - Marinas and terminals in saltwater areas
- Section 220-660-410 - Dredging in saltwater areas
- Section 220-660-420 - Artificial aquatic habitat structures in saltwater areas
- Section 220-660-430 - Outfall and tide and flood gate structures in saltwater areas
- Section 220-660-440 - Utility crossings in saltwater areas
- Section 220-660-450 - Test boring in saltwater areas
- Section 220-660-460 - Informal appeal of administrative actions
- Section 220-660-470 - Formal appeal of administrative actions
- Section 220-660-480 - Compliance with HPA provisions
- Section 220-660-490 - Habitat recovery projects