Review Process
Permits
To keep things simple and provide applicants with as much information as possible, we use a tiered approach. The level of review - Tier 1, Tier 2 or Tier 3 - is based on a project’s size, location, complexity, and potential impact to our levees. All projects start at the simplest level and move to a more thorough review if more information is needed or mitigation is required.
Permits are free. CDID #1 does not charge any application or review fees. Contact us to set up a pre-application meeting to identify issues and explain submittal requirements.
Tier 1: Simple Review (Non-Federal Permits)
Tier 1 reviews are the most common. This is appropriate for residential applicants wanting to make a relatively minor improvement within our interior drainage system.
Examples include:
- Fences
- French drains
- Gardens
- Landscaping
- Outbuildings
Tier 2 : Detailed Review (Non-Federal Permits)
Tier 2 reviews are for larger projects which require additional permitting from other local jurisdictions. This applies to projects where land disturbing activity exceeds state thresholds for new and replaced impervious surfaces.
Examples include:
- New development
- Parking lots
- Re-development
- Road projects
- Subdivisions
Tier 3 : Complex Review (Federal Permits)
Tier 3 reviews involve projects located on or near the federal levee, regardless of size. Review requires coordination with the U.S. Army Corps of Engineers for a determination of alteration and possible 408 Review.
Examples include:
- Access road
- Fencing
- Geotechnical boring
- Paving
- Stockpiling
- Utility penetration
Pre-application is required.
Quick Links
- Applicant Guide - Permits At A Glance (PDF)
- Applicant Guide - Section 408 Pre-Application (PDF)
- Applicant Guide - Section 408 Review (PDF)
- Applicant Guide - Section 408 Review Flow Chart (PDF)
- Applicant Guide - Preparing Drawing Submittals (PDF)
- Army Corps of Engineers - Portland District 408 Program
- Army Corps of Engineers - Contributing Funds Agreements
- Army Corps of Engineers - Public Law 84-99
- Fact Sheet - Public Law 84-99 (PDF)
- United States Code Title 33 Section 408 (PDF)
- EC 1165-2-220 Policy Guidance for 408 Reviews (PDF)
- PDR 1130-2-5 Levee Encroachment Standards (PDF)