Document Types

BiOp Biological Opinion
EA Environmental Assessment
EIS Environmental Impact Statement
FONSI Finding of No Significant Impact
FR Feasibility Report
IFR Integrated Feasibility Report
NOA Notice of Availability
NOP Notice of Preparation
ROD Record of Decision
SEA Supplemental Environmental Assessment
SIR Supplemental Information Report
SOF Statement of Findings

 

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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