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Current Environmental Documents

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DateBasinProject NameTypeLink
5/13/2022Green-Duwamish RiverHoward A. Hanson Dam Additional Water Storage ProjectFinal 2022 Validation Report-Supplemental EISClick Here
5/13/2022Green-Duwamish RiverHoward A. Hanson Dam Additional Water Storage ProjectFinal 2022 Validation Report-SEIS Appendix A - Environmental ComplianceClick Here
5/13/2022Green-Duwamish RiverHoward A. Hanson Dam Additional Water Storage ProjectFinal 2022 Validation Report-SEIS Appendix C - Cost EngineeringClick Here
5/13/2022Green-Duwamish RiverHoward A. Hanson Dam Additional Water Storage ProjectFinal 2022 Validation Report-SEIS Appendix - D Economic Update and Section 902 CalculationClick Here
5/13/2022Green-Duwamish RiverHoward A. Hanson Dam Additional Water Storage ProjectFinal 2022 Validation Report-SEIS Appendix E - Monitoring FrameworkClick Here
5/13/2022Green-Duwamish RiverHoward A. Hanson Dam Additional Water Storage ProjectFinal 2022 Validation Report-SEIS Appendix G - Public InvolvementClick Here
5/13/2022Green-Duwamish RiverHoward A. Hanson Dam Additional Water Storage ProjectFinal 2022 Validation Report-SEIS Appendix B - Engineering part 1 of 2Click Here
5/13/2022Green-Duwamish RiverHoward A. Hanson Dam Additional Water Storage ProjectFinal 2022 Validation Report-SEIS Appendix B - Engineering part 2 of 2Click Here
5/10/2022Lake WashingtonHiram M. Chittenden Locks Large Lock Center Gate ProjectFinal EA/FONSI and Appendices A and C through GClick Here
5/10/2022Lake WashingtonHiram M. Chittenden Locks Large Lock Center Gate ProjectFinal EA Appendix B. Cultural and Historic Properties DocumentationClick Here
4/14/2022Willapa BayShoalwater Bay Shoreline Erosion Repair ProjectNOPClick Here
3/4/2022Quillayute RiverQuillayute River Federal Navigation Project Sea Dike RepairNOA, Draft EA/FONSIClick Here
1/20/2022Yakima RiverAmended Yakima Right Bank Federal Levee and Yakima Wastewater Treatment Plant Levee Repair ProjectAmended Final EA FONSIClick Here
1/12/2022Lake WashingtonHiram M. Chittenden Locks Large Lock Center Gate ProjectDraft EA and FONSIClick Here
1/12/2022Lake WashingtonHiram M. Chittenden Locks Large Lock Center Gate ProjectDraft EA AppendicesClick Here
1/12/2022Lake WashingtonHiram M. Chittenden Locks Large Lock Center Gate ProjectNotice of AvailabilityClick Here
1/7/2022Washington StateSection 106 Programmatic Agreement for the Pl 84-99 ProgramProgrammatic AgreementClick Here
11/19/2021Green-Duwamish RiverHoward A. Hanson Dam Additional Water Storage ProjectFinal 1998 FR-EIS Appendix A DesignClick Here
11/19/2021Green-Duwamish RiverHoward A. Hanson Dam Additional Water Storage ProjectFinal 1998 FR-EIS Appendix C Cost EstimateClick Here
11/19/2021Green-Duwamish RiverHoward A. Hanson Dam Additional Water Storage ProjectFinal 1998 FR-EISClick Here
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