Regional Detention Program
In 2002, CDID #1 constructed a Regional Detention Basin for the purpose of retaining and detaining stormwater runoff until it can be discharged to the Columbia River via CDID #1 conveyances.
The Regional Detention Basin allows landowners and developers the option to purchase non-exclusive use of offsite detention capacity as an alternative to constructing and maintaining privately owned detention facilities.
Determine whether your project is eligible for this program based on its proximity to the Regional Detention Basin and existing conveyances to ensure unrestricted flow. Eligibility for regional detention is defined by the Regional Detention Facility Service Area (PDF).
Contact us for a pre-application meeting to verify there is sufficient volume remaining in the Regional Detention Basin to meet the needs of your project, and to determine if any additional analysis or improvements will be required to ensure unrestricted flow.
Some landowners and developers are not eligible to purchase regional detention due to the location of their project relative to primary drainages, limitations in the CDID#1 conveyance system, and/or insufficient remaining capacity available in the Regional Detention Basin.
For those applicants, CDID#1 also offers a Fee-In-Lieu Program to accept mitigation payments for the purpose of improving CDID#1 facilities and/or flood control capacity. Improvements must approved and are intended to reduce maintenance, improve function, increase reliability or provide other measurable benefit to CDID#1.
Determine eligibility. The Fee-In-Lieu Program is only offered to applicants who are ineligible to participate in our Regional Detention Program.
Contact us for a pre-application meeting to determine whether a suitable project exists. Projects will be considered on a case-by-case basis, and some applicants may not be eligible if suitable mitigation cannot be identified and programmed within the statutory time allowed by RCW 82.020.020.
Download the application to apply.