The proposed alteration is located within the Walla Walla watershed on the Touchet River in Columbia County. The project is proposing to repair the Weir, install a new Obermeyer Weir on the left side adjacent to the fish ladder, and stabilize the riverbed both upstream and downstream to prevent further erosion and/or failure under high flow events in the Touchet River. Construction activities will require in-water work across the entire width of the Touchet River. Construction would occur during the irrigation season and water would be diverted into the irrigation company’s system during repair of the Weir. Water may be diverted through the Dayton Acclimation Pond but only as a method to pass more flows downstream during construction to reduce flow velocities in the fish ladder and not for the acclimation of fish. Weir repair construction activities will be performed by a qualified licensed contractor in the state of Washington and the use of heavy mechanized equipment will be required in the form of excavators, loaders, and dump trucks.

Comments pertaining to this public notice must be submitted via email or conventional mail on or before May 1, 2023 and include Reference Number 408-NWW-2022-001. All comments received will become part of the administrative record and are subject to public release under the Freedom of Information Act, including personally identifiable information such as names, phone numbers, and addresses.

All email comments should be sent to: CENWW-Section408@usace.army.mil.

Conventional mail comments should be sent to:

Public Notice

The Lucky Peak Master Plan has its own webpage.

The proposed alterations between Spokane Street and Park Street and extension upstream of Roosevelt Street would include improving fish passage conditions in approximately 1,625 linear feet of the Mill Creek flood risk management channel (1,344 feet at Spokane Street to Park Street and 280 feet at the extension). Both segments entail excavating up to 1,235 cubic yards of preexisting concrete and placing up to 845 cubic yards of pre-cast and cast-in-place concrete panels over 1,625 square feet to create channel roughness and resting pools within the existing concrete-line Mill Creek flood channel to improve fish passage for ESA-listed salmonids. Both project area would be dewatered, bypassing flows around the construction. Heavy equipment (excavators, front loaders) is required to remove old concrete. All work is designed to maintain the original capacity of the flood control channel.

Comments pertaining to this public notice must be submitted via email or conventional mail on or before March 6, 2023 and include Reference Number 408-NWW-2023-001. All comments received will become part of the administrative record and are subject to public release under the Freedom of Information Act, including personally identifiable information such as names, phone numbers, and addresses.

All email comments should be sent to: CENWW-Section408@usace.army.mil.

Conventional mail comments should be sent to:
Planning Branch, ATTN: Section 408 Coordinator, 201 N. 3rd Avenue
Walla Walla, WA 99362-1876

Public Notice

The Yakima River Delta Ecosystem Restoration has its own webpage.

The Sweetwater Creek Ecosystem Restoration study has its own webpage.

The Garden City Flood Risk Management General Investigation (GI) Study has its own webpage. 

The Finding of No Significant Impact (FONSI), the environmental compliance decision document for the lower Snake River Navigation Channel Maintenance Environmental Assessment, was signed by the Walla District Commander (Commander KingSlack) on September 27, 2022.  Signing of the FONSI confirms that the Corps did not find any significant impacts to the environment associated with implementation of the dredging and disposal action.  The Corps’ contractor completed dredging on February 25, 2023.  Please see the links below to access the signed FONSI and attached Comment Response Document, the Environmental Assessment, and all supporting appendices.

2014 Programmatic Sediment Management Plan

Finding of No Significant Impact (FONSI)

Attachment to the FONSI - Comment Response Document

Environmental Assessment 

Appendix A: Current Immediate Need Navigation Channel Maintenance Dredging Monitoring Plan

Appendix B: Clean Water Act Section 404(b)(1) Evaluation

Appendix C: Hydraulic Evaluation of the Bishop Bar Disposal Site

Appendix D: Endangered Species Act Biological Assessment 

Appendix E: National Marine Fisheries Service Biological Opinion

Appendix F: U.S Fish and Wildlife Service Biological Opinion

Appendix G: Idaho SHPO NHPA Section 106 Concurrence Letter dated June 8, 2022

Appendix H: Washington SHPO NHPA Section 106 Concurrence Letter dated June 16, 2022

The Walla Walla District of the U.S. Army Corps of Engineers (Corps) will assist the City of Franklin with construction costs associated with the construction of a 512,000-gallon water storage tank, under the authority of Section 595 of the Water Resources Development Act of 1999 [Public Law (PL) 106-53], as amended in 2003 by PL 108-7, Section 126 to include Idaho. Section 595 provides authority for the Corps to provide design and construction assistance to non-federal interests for water-related environmental infrastructure and resources protection and development projects.

In accordance with the National Environmental Policy Act (NEPA) of 1969, as amended, the Corps prepared an Environmental Assessment (EA) to evaluate and consider the potential environmental effects of the proposed water storage tank construction. Because no significant environmental effects were identified, a Finding of No Significant Impact (FONSI) was signed by the Walla Walla District Commander on June 1, 2022, concluding the NEPA process.

Public Notice

Signed FONSI

Final EA

The Finding of No Significant Impact (FONSI) was signed by the Director of Civil Works on June 27, 2022 for the Federal Participation in Watercraft Inspection Stations, Updated Integrated Letter Report and Programmatic Environmental Assessment, Columbia River Basin (LR/PEA). In compliance with the National Environmental Policy Act, the Corps produced the Updated LR/PEA to evaluate the potential economic and environmental effects of including the states of Nevada and Wyoming in the current and successful federal cost-share program of establishing and maintaining watercraft inspection stations in the Columbia River Basin to help prevent the spread of aquatic invasive species, specifically zebra and quagga mussels. The current program is operated in Idaho, Montana, Oregon, and Washington. Expansion of the program to Nevada and Wyoming will help to prevent the spread of aquatic invasive species to reservoirs in the Columbia River Basin, operated by the U.S. Army Corps of Engineers.

• Signed FONSI for the Updated Integrated Letter Report and Programmatic EA_Federal Participation in Watercraft Inspection Stations CRB_June 2022
• Updated Integrated Letter Report and Programmatic EA_Federal Participation in Watercraft Inspection Stations CRB_May 2022
• App A_Final Biological Evaluation, Aquatic Invasive Species_Watercraft Inspection Stations_ID-MT-OR-WA_August 2016
• App B_ Pacific States Marine Fisheries Commission Letter of Intent and Non-Federal Sponsor’s Self-Certification of Financial Capability for Watercraft Inspection Program_February 2017
• App C_ Final Signed FONSI for the Final Integrated Letter Report and Programmatic EA, Federal Participation in Watercraft Inspection Stations, CRB_ID-MT-OR-WA_March 2017
• App D_ Final Integrated Letter Report and Programmatic EA, Federal Participation in Watercraft Inspection Stations, CRB_ID-MT-OR-WA_March 2017
• App E_Final Signed FONSI Dreissenid Mussel Rapid Response Action Plan Programmatic EA_ID-MT-OR-WA_November 2019
• App F_ Final Dreissenid Mussel Rapid Response Action Plan Programmatic EA_ID-MT-OR-WA_November 2019
• App G_ Final Aquatic Invasive Species Watercraft Inspection Stations Geographic Expansion to Include NV and WY, Federal Natural Resources Law Compliance and Biological Evaluation_ID-MT-NV-OR-WA-WY_June 2021
• App H_ Final FONSI for the Supplemental Programmatic EA, Supplement 1, Federal Participation in Watercraft Inspection Stations and Rapid Response Actions to Protect the CRB_NV-WY_May 2022
• App I_ Final Supplemental Programmatic EA, Supplement 1, Federal Participation in Watercraft Inspection Stations and Rapid Response Actions to Protect the CRB_NV-WY_July 2020
• App J_ Draft Dreissenid Rapid Response Action Plan, September 2021