Environmental Documents

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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

Click any column header to sort table data.
Date	Basin	Project Name	Type	Link
8/9/2022	Clark Fork River	Clark Fork Authorized Area V Federal Levee Repair	NOP	Click Here
5/13/2022	Green-Duwamish River	Howard A. Hanson Dam Additional Water Storage Project	Final 2022 Validation Report-Supplemental EIS	Click Here
5/13/2022	Green-Duwamish River	Howard A. Hanson Dam Additional Water Storage Project	Final 2022 Validation Report-SEIS Appendix A - Environmental Compliance	Click Here
5/13/2022	Green-Duwamish River	Howard A. Hanson Dam Additional Water Storage Project	Final 2022 Validation Report-SEIS Appendix C - Cost Engineering	Click Here
5/13/2022	Green-Duwamish River	Howard A. Hanson Dam Additional Water Storage Project	Final 2022 Validation Report-SEIS Appendix - D Economic Update and Section 902 Calculation	Click Here
5/13/2022	Green-Duwamish River	Howard A. Hanson Dam Additional Water Storage Project	Final 2022 Validation Report-SEIS Appendix E - Monitoring Framework	Click Here
5/13/2022	Green-Duwamish River	Howard A. Hanson Dam Additional Water Storage Project	Final 2022 Validation Report-SEIS Appendix G - Public Involvement	Click Here
5/13/2022	Green-Duwamish River	Howard A. Hanson Dam Additional Water Storage Project	Final 2022 Validation Report-SEIS Appendix B - Engineering part 1 of 2	Click Here
5/13/2022	Green-Duwamish River	Howard A. Hanson Dam Additional Water Storage Project	Final 2022 Validation Report-SEIS Appendix B - Engineering part 2 of 2	Click Here
5/10/2022	Lake Washington	Hiram M. Chittenden Locks Large Lock Center Gate Project	Final EA/FONSI and Appendices A and C through G	Click Here
5/10/2022	Lake Washington	Hiram M. Chittenden Locks Large Lock Center Gate Project	Final EA Appendix B. Cultural and Historic Properties Documentation	Click Here
4/14/2022	Willapa Bay	Shoalwater Bay Shoreline Erosion Repair Project	NOP	Click Here
3/4/2022	Quillayute River	Quillayute River Federal Navigation Project Sea Dike Repair	NOA, Draft EA/FONSI	Click Here
1/20/2022	Yakima River	Amended Yakima Right Bank Federal Levee and Yakima Wastewater Treatment Plant Levee Repair Project	Amended Final EA FONSI	Click Here
1/12/2022	Lake Washington	Hiram M. Chittenden Locks Large Lock Center Gate Project	Draft EA and FONSI	Click Here
1/12/2022	Lake Washington	Hiram M. Chittenden Locks Large Lock Center Gate Project	Draft EA Appendices	Click Here
1/12/2022	Lake Washington	Hiram M. Chittenden Locks Large Lock Center Gate Project	Notice of Availability	Click Here
1/7/2022	Washington State	Section 106 Programmatic Agreement for the Pl 84-99 Program	Programmatic Agreement	Click Here
11/19/2021	Green-Duwamish River	Howard A. Hanson Dam Additional Water Storage Project	Final 1998 FR-EIS Appendix A Design	Click Here
11/19/2021	Green-Duwamish River	Howard A. Hanson Dam Additional Water Storage Project	Final 1998 FR-EIS Appendix C Cost Estimate	Click Here

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Older Environmental Documents

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