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Hiram Arden Operations Division, Navigation Section Seattle District November 2009

Toke Point Marina Pipeline Maintenance Dredging with Flowlane Disposal at Willapa Harbor, Washington. Hiram Arden Operations Division, Navigation Section Seattle District November 2009. NAVIGATION PROGRAM. Channel & Harbors - 23 active

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Hiram Arden Operations Division, Navigation Section Seattle District November 2009

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  1. Toke Point Marina Pipeline Maintenance Dredging with Flowlane Disposal at Willapa Harbor, Washington Hiram Arden Operations Division, Navigation Section Seattle District November 2009

  2. NAVIGATION PROGRAM • Channel & Harbors - 23 active • 8 high use harbors (over 1 million tons commercial cargo) • 15 low use harbors • 15 deep draft channels (14 ft+ depth) Toke Point Marina • 7 shallow draft channels • 2 without channel maintenance (breakwater & revetment) • Conduct hydrographic surveys • Navigation hazard removal.

  3. Willapa Harbor Navigation Project Features: • Ocean bar channel • Deep draft river channel to Raymond • Toke Point Marina • Bay Center Channel & Marina • Nahcotta Marina Toke Pt.

  4. TOKE POINT AT WILLAPA BAY , WASHINGTON Photo Courtesy Port of Willapa Harbor Photo by Merrill Photography

  5. Aerial view of Toke Point Marina & Entrance

  6. 2006 Pacific / Wahkiakum Southwest Washington Port Cooperative: • Port of Willapa Harbor • Port of Chinook • Port of Peninsula • Port of Ilwaco • Port of Wahkiakum #1 • Port of Wahkiakum #2

  7. Chronology of Toke Point federal entrance dredging • 1958 New Const. 184,000 cy Pipeline w/upland disposal • 1964 O&M 12,000 cy Pipeline w/ upland disposal • 1970 O&M 16,500 cy Pipeline w/upland disposal • 1974 O&M 14,000 cy Pipeline w/upland disposal • 1987 O&M 27,800 cy Clamshell w/openwater disposal • 1991 O&M 27,100 cy Clamshell w/openwater disposal • 1998 O&M 27,650 cy Clamshell w/openwater disposal • 2009 O&M 20,000 cy Pipeline with flowlane & beneficial use disposal (Underway & funded by Port of Willapa Harbor) • 2012 O&M 15,000 cy • 2015 O&M 15,000 cy • 2019 O&M 15,000 cy

  8. Corps & Port Partnership Effort • Corps & Port conduct joint sediment sampling & analysis that confirms sediments suitable for unconfined disposal or beneficial use. • Corps & Port coordinate required permit approvals to conduct O&M dredging for whoever gets funds first? • Stakeholder collaboration nets proposal for pipeline dredging with flowlane & beneficial use disposal. • Corps & Port Strategy “Get Dredge Ready”

  9. JOINT PORT/ CORPS PUBLIC NOTICE • Corps Federal Entrance Public Notice #CENWS-OD-TS-NS-28 • Port of Willapa Harbor Individual Permit Application Public Notice No. NWS-2008-164-SO August 11, 2008

  10. JOINT PORT / CORPS PUBLIC NOTICE • Federal Entrance 100 ft wide, 700 ft long to -17 ft depth @ mllw • Port Moorage area depths vary from -13 ft to -19ft depths @ mllw. August 11, 2008

  11. Port of Willapa Harbor / Corps JARPA Application • Flowlane disposal of silty materials in “deep hole “, thalweg. • Beneficial use placement of sandy entrance materials for beach nourishment on Port property. August 11, 2008

  12. Commercial Fishing Vessel Moored at Toke Point

  13. Commercial fishing vessel moored at Toke Point

  14. Ellicott Dredges Model 370 Cutterhead 10-inch pipeline dredge delivered to Port of Willapa dock in Raymond, WA September 2009

  15. Dredge Window 1 October - 31 March Port of Willapa Harbor’ dredge at work

  16. Float marking 12-inch HDPE Discharge Line

  17. Commercial Fishing Vessel Moored at Toke Point Dredge discharge diffuser float for flowlane disposal

  18. Tokeland Dredging Celebration October 16, 2009

  19. Commercial Fishing Vessel Moored at Toke Point Flowlane Disposal ‘‘Deep Hole” bathymetric survey 28 Oct 2009

  20. Questions?

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