Nehalem River Basin: Technical Assistance for Watershed Data Synthesis, Restoration, and Outreach Priorities 4/16/2008 Goal Support Councils outreach campaign to recruit landowners for participation in habitat restoration projects Tasks TaskDescriptionStatus 1Document approach 2Draft data synthesis 3Meet with TAC to review maps & approach Today 4Draft prioritization 5Meet with TAC to review prioritization 6Technical assistance 7Finalize documents Data Synthesis TIER I: Robust Data and Spatially Extensive Coho distribution & Intrinsic Potential ODFW/Boswell Aquatic Habitat Inventory TIER II: Supporting Data (less robust/extensive) DEQ 303 (d) list for temperature and e-coli FLIR (water temperature) PSU Riparian/LWD/shade analyses DEQ Macroinvertebrate data ODFW/OWRD flow restoration priorities Tidal wetland restoration priorities Greenpoint Consulting Data Synthesis TIER III: Supplemental Information OWEB completed aquatic / riparian restoration projects Turbidity data (UNWC/DEQ) Summarize hydrograph (flood history; low flows) ADDITIONAL: Information to Support the Map Products Geology Aerial photography Coho distribution & Intrinsic Potential Aquatic Habitat Inventories ODFW ~360 reaches surveyed ( ) Boswell Consultants ~ 430 reaches surveyed ( ) Data used to prioritize reaches for: LWD placement Riparian enhancement Passage barrier removal Aquatic Habitat Inventories Large wood placement priority Coho present Unconstrained valley bottom (VWI >2) Channel width small enough for wood to stay in place after floods (ACW < 12 meters) Currently lacks LWD ( 43 organisms per 100 ml ODEQ FLIR data PSU Riparian/LWD/shade analyses 1999 Watershed Analysis Used draft OWEB methods Supplemental material using final OWEB methods? PSU Riparian/ LWD/shade analyses DEQ Macroinvertebrate data Samples collected 1998 2004 DEQ evaluated aquatic community relative to temperature and fine sediment, summarized each year as 1) Impaired or 2) Equivalent to Reference Condition. Results mapped as: GREEN:Not Impaired YELLOW:Intermediate in evaluation. RED:Impaired. ROSE:Flagged as outside the predictive model DEQ Macroinvertebrate data OWRD/ODFW Flow Restoration Priorities Tidal wetlands Greenpoint Consulting OWEB restoration inventory Turbidity data (UNWC/DEQ) Peak flow history Low flows gage , Nehalem River near Foss: Priority Date: 5/9/1973 7/1 9/30 rate = 90 cfs gage , Nehalem R. near Vernonia: Priority Date: 5/9/1973 7/1 9/30 rate = 5 cfs Low flows Geology Volcanics / Intrusives: Higher gradient, highly bisected drainage network Larger substrate (pebbles and boulders) and fewer pools. Sedimentary: Lower gradient, more secondary channels Sandy substrate, pool rich. Geology Proposed 6 th -field subwatershed summaries: Coho distribution & Intrinsic potential LWD & Riparian priorities 303 (d) listed reaches Barriers Completed restoration projects Landownership Orthophotos as base map Example 6 th -field subwatershed Questions for TAC: Sixth field watershed maps & summaries Prioritization approach (based on summaries) Deliverables: Sixth-field maps (hardcopies) Habitat survey summaries GIS data for all Tier 1-4 data Web-based tool for downloading digital data