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
9/8/2023	St. Joe River	City of St. Maries Sewer Line Replacement Project	NOA and Draft EA/FONSI	Click Here
9/8/2023	St. Joe River	City of St. Maries Sewer Line Replacement Project	Appendix A Final City of St. Maries Phase 3 Sewer Line Replacement Project EID	Click Here
7/27/2023	Skagit River	Skagit River Dike Districts 17 and 22 Levee Rehabilitation Projects	Final EA FONSI	Click Here
7/6/2023	Snoqualmie River	Mason Thorson Ells Levee Rehabilitation	Final EA FONSI	Click Here
7/3/2023	Skagit River	Skagit 1, 3, 12 Levee Repair Projects	Final EA FONSI	Click Here
6/29/2023	Pend Oreille	Albeni Falls Dam 10-Year Program to Control Invasive Aquatic Weeds and Continue Studies in Aquatic Weed Control	Final SEA FONSI	Click Here
6/21/2023	Nooksack River	Ferndale Levee Repair Project	Final EA FONSI	Click Here
6/15/2023	Snohomish River	Pilchuck and Marshland Levee Repair Projects	Final EA FONSI	Click Here
11/1/2022	Willapa Bay	Shoalwater Bay Shoreline Erosion Repair Project	SEA	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
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

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Older Environmental Documents

USACE Digital Library (External Link)