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US Army Corps of Engineers
BUILDING STRONG®
Toke Point Marina Pipeline Maintenance Dredging with Flowlane Disposal at Willapa Harbor, Washington
Hiram Arden
Operations Division, Navigation Section
Seattle District
November 2009
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WillapaHarbor
GraysHarbor
QuillayuteRiver
Neah Bay
Port AngelesHarbor Keystone
Olympia
Tacoma
Seattle
Everett
SwinomishChannel
Blaine
Bellingham
Anacortes
Lake WashingtonShip Canal
Columbia R.
Paci
fic
Oce
anVancouverI sland, B.C.
British Columbia
WA
OR
Strait of J uan de Fuca
Puge
t S
ound
Friday Harbor
Seattle DistrictNavigation Projects
µ
0 25 50 75 10012.5Miles
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NAVIGATION PROGRAMChannel & 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.
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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.
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TOKE POINT AT WILLAPA BAY , WASHINGTON
Photo Courtesy Port of Willapa Harbor Photo by Merrill Photography
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BUILDING STRONG®Aerial view of Toke Point Marina & Entrance
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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
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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
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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”
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Corps Federal Entrance PublicNotice #CENWS-OD-TS-NS-28
Port of Willapa Harbor Individual Permit Application Public Notice No. NWS-2008-164-SO
JOINT PORT/ CORPS PUBLIC NOTICE
August 11, 2008
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Federal Entrance100 ft wide, 700 ft longto -17 ft depth @ mllw
Port Moorage area depths vary from -13 ft to -19ft depths @ mllw.
August 11, 2008
JOINT PORT / CORPS PUBLIC NOTICE
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Port of Willapa Harbor / Corps JARPA Application
August 11, 2008
Flowlane disposal of silty materials in “deep hole “,thalweg.
Beneficial use placement of sandy entrance materialsfor beach nourishment onPort property.
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Commercial Fishing Vessel Moored at Toke Point
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Commercial fishing vessel moored at Toke Point
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Ellicott Dredges Model 370 Cutterhead 10-inch pipeline dredge delivered to Port of Willapa dock in Raymond, WA September 2009
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Port of Willapa Harbor’ dredge at work
Dredge Window 1 October - 31 March
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Float marking 12-inch HDPE Discharge Line
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Commercial Fishing Vessel Moored at Toke Point Dredge discharge diffuser float for flowlane disposal
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Tokeland Dredging Celebration October 16, 2009
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Commercial Fishing Vessel Moored at Toke Point Flowlane Disposal ‘‘Deep Hole” bathymetric survey 28 Oct 2009
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Questions?