Walla Walla District Public Notices

Special Public Notice: EMERGENCY PROCEDURES FOR PERMITTING IN NORTHERN IDAHO RELATED TO DECEMBER 2025, MARCH 2026 FLOODING – Informational Brief

Press Operations — Mon, 13 Apr 2026 23:00:00 GMT

Informational Brief for Emergency Permitting Procedures

SPECIAL PUBLIC NOTICE: Regional Conditions for the 2026 Nationwide Permits in Idaho

Press Operations — Wed, 11 Mar 2026 13:00:00 GMT

The Walla Walla District Regulatory Division is issuing this informational Special Public Notice to announce the final Regional Conditions for the 2026 Nationwide Permits in the State of Idaho.

NOTICE OF AVAILABILITY FOR THE COMPENSATORY MITIGATION (CM) ELIGIBILITY AND ACCOUNTING DETERMINATION WORKSHEET DEVELOPED FOR USE WITH THE IDAHO STREAM FUNCTION ASSESSMENT METHOD (SFAM)

Press Operations — Mon, 02 Feb 2026 20:00:00 GMT

The U.S. Army Corps of Engineers, Walla Walla District (Corps) Regulatory Division announces the release of the Compensatory Mitigation (CM) Eligibility and Accounting Determination Worksheet, beta version 1.0., developed for use with the Idaho Stream Function Assessment Method (SFAM).

NOTICE OF AVAILABILITY FOR THE NWW IDAHO WETLAND ECOSYSTEM SERVICES PROTOCOL (WESP- ID) CREDIT CALCULATOR TOOL

Press Operations — Mon, 02 Feb 2026 20:00:00 GMT

The U.S. Army Corps of Engineers, Walla Walla District Regulatory Division (USACE) announces the release of the NWW WESP-ID Credit Calculator Tool.

Special Public Notice Announcing Reissuance of the Nationwide Permits (NWPs)

Press Operations — Fri, 09 Jan 2026 19:00:00 GMT

On January 8, 2026, the U.S. Army Corps of Engineers (Corps) published a final action in the Federal

U.S. Army Corps of Engineers announces publication of 2026 nationwide permits

Press Operations — Thu, 08 Jan 2026 19:00:00 GMT

WASHINGTON – The U.S. Army Corps of Engineers announced today the publication of the 2026 nationwide permits in the Federal Register. The 56 reissued and one new nationwide permit in the final action are necessary for work in streams, wetlands and other waters of the United States under Section 404 of the Clean Water Act and Section 10 of the Rivers and Harbors Act of 1899.

Special Public Notice: Emergency Procedures for Permitting in Northern Idaho for December 2025 Floods - Informational Brief

Press Operations — Mon, 15 Dec 2025 17:25:00 GMT

The U.S. Army Corps of Engineers, Walla Walla District, (Corps) is issuing this public notice to inform members of the public of Section 404 of the Clean Water Act (33 USC 1344) and Section 10 of the Rivers and Harbors Act of 1899 (33 USC 403).

Special Public Notice: Reissuance of REGIONAL GENERAL PERMIT-27 (RGP-27), with Modifications

Press Operations — Tue, 10 Jun 2025 09:00:00 GMT

Interested partied are hereby notified, in accordance with 33 CFR 325.3(b) that the U.S. Army Corps of Engineers, Walla Walla District (Corps), has evaluated the scope of the described action and has decided to reissue Regional General Permit 27 (RGP-27) to authorize certain work in navigable waters of the United States in Lake Pend Oreille and the Pend Oreille River within the State of Idaho.

Public Notice: Application for Permit - NWW-2025-00041 - Martin, Darby Meadow Ranch, Darby Creek

Press Operations — Mon, 09 Jun 2025 15:30:00 GMT

TO WHOM IT MAY CONCERN: The Walla Walla District of the U.S. Army Corps of Engineers (Corps) has received an application for a Department of the Army permit pursuant to Section 404 of the Clean Water Act (33 U.S.C. §1344).

Special Public Notice for Walla Walla District Implementation of Special Emergency Processing Procedures Under E.O. 14156 in the State of Idaho for Section 10 Rivers and Harbors Act and Section 404 Clean Water Act Permits

Press Operations — Fri, 11 Apr 2025 18:00:00 GMT

The purpose of this notice is to advise the public that the U.S. Army Corps of Engineers (USACE), Northwestern Division has approved the use of special emergency processing procedures by the WALLA WALLA DISTRICT in accordance with 33 CFR § 325.2(e)(4) for activities covered by the National Energy Emergency declared in Executive Order (EO) 14156.

PUBLIC NOTICE: Prospectus for Snake River Mitigation Bank - NWW-2025-00045

Press Operations — Thu, 10 Apr 2025 04:00:00 GMT

Interested parties are hereby notified that the U.S. Army Corps of Engineers (USACE), Walla Walla District has received a request for the proposed Snake River Mitigation Bank (Bank), as described below and shown on the attached drawings. The Corps is soliciting comments on the proposed Bank.

PUBLIC NOTICE: Prospectus for North Fork Payette River Mitigation Bank - NWW-2024-00111

Press Operations — Thu, 06 Mar 2025 18:30:00 GMT

Interested parties are hereby notified that the U.S. Army Corps of Engineers (USACE), Walla Walla District has received a request to create the proposed North Fork Payette River Mitigation Bank (Bank), as described below and show on the attached drawings. The Corps is soliciting comments on the proposed Bank.

PUBLIC NOTICE: Prospectus for ILF Program - NWW-2024-00077

Press Operations — Thu, 06 Mar 2025 18:30:00 GMT

Interested parties are hereby notified that the U.S. Army Corps of Engineers (USACE), Walla Walla District has received a proposal for an In-lieu Fee Compensatory Mitigation Program (ILFP) referred to as the East Idaho In-lieu Fee Program (Program), as described below and shown on the attached drawings. The USACE is soliciting comments on the proposed Program.

Special Public Notice: Proposal to Reissue REGIONAL GENERAL PERMIT-27 (RGP-27), with Modifications

Press Operations — Tue, 18 Feb 2025 17:30:00 GMT

Interested partied are hereby notified, in accordance with 33 CFR 325.3(b) that the U.S. Army Corps of Engineers, Walla Walla District (Corps), proposes to re-issue, with modifications, Regional General Permit 27 (RGP-27) to authorize certain work in navigable waters of the United States in Lake Pend Oreille and the Pend Oreille River within the State of Idaho.

PUBLIC NOTICE: Prospectus for Succor Creek Mitigation Bank - NWW-2024-00401

Press Operations — Fri, 17 Jan 2025 19:46:00 GMT

45-Day Notice U.S. Army Corps of Engineers No: NWW-2024-00401

Public Notice: Prospectus for Teton Edge Mitigation Bank - NWW-2024-00208

Press Operations — Fri, 17 Jan 2025 19:40:00 GMT

45-Day Notice U.S. Army Corps of Engineers No: NWW-2024-00208

Public Notice: Application for Permit - NWW-2007-01218 - Lake Pend Oreille and Trestle Creek

Press Operations — Mon, 26 Aug 2024 20:30:00 GMT

Interested parties are hereby notified that the Walla Walla District has received an application for

NOTICE OF AVAILABILITY FOR THE STREAM FUNCTION ASSESSMENT METHOD FOR IDAHO (SFAM)

Press Operations — Tue, 06 Aug 2024 22:44:07 GMT

The U.S. Army Corps of Engineers, Walla Walla District (Corps) Regulatory Division announces the

Public Notice: Application for Permit - NWW-2024-00172 - CJ Strike Reservoir, and adjacent wetlands

Press Operations — Wed, 15 May 2024 12:30:00 GMT

Interested parties are hereby notified that the Walla Walla District has received an application for a Department of the Army permit for certain work in Waters of the United States, including wetlands.

Special Public Notice: NOTICE OF AVAILABILITY OF THE REGULATORY REQUEST SYSTEM

Press Operations — Wed, 15 May 2024 11:00:00 GMT

This Special Public Notice announces that U.S. ARMY CORPS ENGINEERS (USACE) is pleased to announce that the new national online application portal and management platform, known as the Regulatory Request System (RRS) now includes an electronic submission option for permit applications.