USACE mitigation bankingNorthwestern Division

How long the NWD division's districts take to approve a mitigation bank, what credit supply they oversee, and how the districts differ from one another. The clock that matters is the regulator's own — everything else includes time the applicant spends revising.

Figures mirrored from USACE RIBITS · ORM · RRS · synced

The read

A bank clears the regulator here in about 11 months — and takes roughly 17 months end to end.

Measured against the national median, the regulator clock runs 1.12× it and the full clock runs 0.71× it — faster than the country. Districts diverge sharply enough that the division median is a starting point, not a forecast for any one office — Kansas City closes in 330 days, Omaha in 339.

Regulator clock
339days, median
Draft instrument to decision
n = 11 banks · IQR 303–362
Full clock
512days, median
First public notice to decision
n = 14 banks
Vs national
Regulator: Northwestern 339 days; National 303 days. Full: Northwestern 512 days; National 723 days
RegulatorFull
Coverage

Regulatory districts, shaded by review time

Review time by district

4 districts
Review time by district, 4 rows
CodeDistrictRegulator clockFull clockBanks
CodeNWKKansas CityRegulator clock330 daysFull clock481 daysBanks5
CodeNWOOmahaRegulator clock339 daysFull clock655 daysBanks8
CodeNWSSeattleRegulator clocknot enough dataFull clocknot enough dataBanks1
CodeNWWWalla WallaRegulator clocknot enough dataFull clocknot enough dataBanks0
Supply

Credits available across the division

Wetland
55,770credits
+0.4%year on year
Stream
1,384,872credits
+9.5%year on year
Species
47,093credits
0.0%year on year
NRDA
1,000credits
Demand

Permit applications by district

5 districts
Permit applications by district, 5 rows
CodeDistrictApplicationsOpenShare of division
CodeNWSSeattleApplications15Open6Share of division42%
CodeNWOOmahaApplications10Open2Share of division28%
CodeNWKKansas CityApplications5Open0Share of division14%
CodeNWPPortlandApplications5Open1Share of division14%
CodeNWWWalla WallaApplications1Open0Share of division3%

Recent federal permit applications on public notice

6 most recent of 36
Applications recorded
36since 2026-07-02
Standard permits & EIS · across 5 districts
Open for comment
9of 36
The rest have closed, and remain pending
Recent federal permit applications on public notice, 6 rows
AppliedDistrictProjectComment period
Applied2026-09-25DistrictNWSSkagit County Drainage and Irrigation District #5
10-year drainage and irrigation maintenance planmore

excavate and place fill to implement a 10-year maintenance plan for drainage and irrigation facilities

Comment periodOpen · to 2026-10-25
Applied2026-09-25DistrictNWSSkagit County Drainage and Irrigation Improvement District #15
10-year drainage and irrigation maintenance planmore

excavate and place fill to implement a 10-year maintenance plan for drainage and irrigation facilities

Comment periodOpen · to 2026-10-25
Applied2026-09-25DistrictNWSSkagit County Drainage and Irrigation District # 18
10-year drainage and irrigation maintenance planmore

10-year maintenance plan for drainage and irrigation facilities

Comment periodOpen · to 2026-10-25
Applied2026-09-25DistrictNWSSkagit County Drainage and Irrigation Improvement Dist #22
10-year drainage and irrigation maintenance planmore

excavate and place fill to implement a 10-year maintenance plan for drainage and irrigation facilities

Comment periodOpen · to 2026-10-25
Applied2026-09-25DistrictNWSSkagit County Dike, Drainage and Irrigation Improvement District #25
10-year drainage and irrigation maintenance planmore

excavate and place fill to implement a 10-year maintenance plan for drainage and irrigation facilities.

Comment periodOpen · to 2026-10-25
Applied2026-09-21DistrictNWONGPC Valentine Hatchery Reservoir - Sluicing
Seasonal sediment sluicing at Valentine State Fish Hatchery Reservoir Dammore

The applicant is requesting a Department of the Army (DA) permit to conduct seasonal sediment sluicing at the Valentine State Fish Hatchery Reservoir Dam (Minnechaduza Creek).

Comment periodOpen · to 2026-10-11
Pipeline

Banks proposed on public notice

5 most recent of 6
Proposals recorded
6since 2026-07-02
Bank, ILF and instrument proposals
Open for comment
2of 6
The rest have closed, and remain in review
In RIBITS review
6pending banks
Separate feed — RIBITS bank status
Banks proposed on public notice, 5 rows
AppliedDistrictTypeProposed bankComment period
Applied2026-09-11DistrictNWOTypeILF instrument modificationMODNorth Dakota Department of Transportation Umbrella Mitigation Bank Development
Sand Creek stream mitigation bank site plan, North Dakotamore

The U.S. Army Corps of Engineers, Omaha District, (Corps) is evaluating a site plan submitted by the North Dakota Department of Transportation (NDDOT) for the Sand Creek Stream Mitigation Bank Site (Site). The purpose of this public notice is to solicit comments on the plan from the public; Indian Tribes; Federal, state, and local agencies/officials; and other interested parties. Participation is encouraged to assist the Corps in making a reasonable decision to accept, modify or reject the plan. The Site includes a stream resource (Sand Creek) adjacent to Sand Creek Road and 46th Street NW. The land was historically utilized as pastureland; and stream channel manipulation/rerouting also occurred to accommodate access to a former oil well pad. NDDOT proposes to restore and/or enhance 14,753 linear feet of the stream, to include habitat and riparian corridor improvements, historic channel reconnection, bank stabilization, floodplain reconnection, and revegetation.

Comment periodOpen · to 2026-10-12
Applied2026-09-04DistrictNWSTypeBank prospectusDEVMBAKitsap Nearshore Mitigation Bank
Mitigation bank proposalmore

Mitigation bank

Comment periodOpen · to 2026-10-04
Applied2026-08-25DistrictNWSTypeILF instrument modificationMODPort of Tacoma Umbrella Bank
Instrument amendment to expand existing mitigation bank sitemore

Proposal to amend the approved instrument to expand the existing Bank site

Comment periodClosed · to 2026-09-25
Applied2026-08-13DistrictNWOTypeILF instrument modificationMODNaturion, formerly North Central Mitigation, LLC, UMBI for North Dakota
Flying Moose Mitigation Bank prospectus and draft site planmore

Create a compensatory mitigation bank site, Flying Moose Mitigation Bank Prospectus-Draft Site Plan.

Comment periodClosed · to 2026-09-12
Applied2026-08-11DistrictNWOTypeILF instrument modificationMODNorth Dakota Department of Transportation Umbrella Mitigation Bank Development
NDDOT umbrella mitigation instrument addendum, North Dakotamore

The U.S. Army Corps of Engineers, Omaha District, (Corps) is evaluating an Umbrella Instrument Addendum submitted by the North Dakota Department of Transportation (NDDOT) to allow for the development of stream mitigation banking credits to offset future impacts to stream resources that occur as a result of road construction activities. The Corps approved NDDOT Umbrella Mitigation Bank Program Instrument on June 14, 2013. It was established in accordance with the implementing regulations of the Compensatory Mitigation for Losses of Aquatic Resources Final Rule found at 33 CFR 332, which was published in the Federal Register on April 10, 2008. The Instrument is used to satisfy NDDOT's compensatory mitigation requirements for Department of the Army permits issued under Section 404 of the Clean Water Act (33 USC 1344) and wetland impacts recommended to be mitigated in Executive Order 11990.

Comment periodClosed · to 2026-09-11
Approvals

Banks finalized in this division

Banks finalized in this division, 5 rows
DecisionDistrictBankStatus nowCredits released
Decision2026-08-26DistrictNWSWapato Valley Wetland and Conservation BankNWS-2015-413Status nownot in RIBITSCredits releasedno record
Decision2026-06-18DistrictNWKSwallow Tail, LLC, Osage/South Grand Rivers Wetland and Stream Umbrella Mitigation Bank, Site 2NWK-2025-21Status nowApprovedCredits releasednone yet
Decision2026-06-13DistrictNWKDucks Unlimited Inc - Barton County Mitigation BankNWK-2024-253Status nowApprovedCredits releasednone yet
Decision2026-05-20DistrictNWONorth Fork Poudre Mitigation Bank ProspectusNWO-2023-1920Status nowApprovedCredits releasednone yet
Decision2026-04-23DistrictNWOWestervelt, Proposed Elkhorn River Mitigation Bank Prospectus--WesterveltNWO-2024-1960Status nowApprovedCredits releasedStream, Wetland

About the data on this page

Bank details, status and credit balances are mirrored from the USACE RIBITS registry, the federal public record for mitigation banks. Single-client banks are excluded from supply figures. Credit balances count only banks that can sell today — sold-out, suspended, terminated, withdrawn, closed-out and not-yet-approved banks are left out. Credit classes offset different resources and are never added together. Totals across many banks are rounded to whole credits — a single bank’s own balance never is. Approval timelines come from the USACE permit-processing record (ORM). We calculate the median from every bank’s milestone dates in the division. Full clock means from the first public notice of the prospectus to the final decision — it includes the applicant’s own time. Regulator clock means from the complete draft instrument being received to that same final decision — the part the Corps controls. A median is shown only where at least four banks have both milestone dates. In-lieu fee instruments are excluded throughout. Public notices come from the USACE Regulatory Request System (RRS). Notice text is the Corps’ own; the one-line summary beside it is an AI generated summary.

The map on this page is drawn live from the EPA NEPAssist RIBITS MapServer when you load it.

How these figures are builtReport an issue