Please note: This study is complete, and has been "Archived" for historical purposes. 

For details on downloading the final report, please see our Reports page.

WSDOT is also providing a Study Overview on their site. 

 

I-205 Corridor Study

Do You Drive on I-205?

If so, you will be interested in the I-205 Corridor Study, from the Columbia River to NE 83rd Street in Clark County. The study will provide answers to questions such as:

  • How can I-205/Mill Plain be improved?
  • How can improvements to the local road system help mainline I-205?
  • Would I-205 auxiliary lanes help traffic flow?
  • Is a new interchange between Mill Plain and SR-500 needed?
  • Is an improvement to SR-14/Ellsworth possible?
  • How would I-205 High Occupancy Vehicle lanes operate?
  • How can transit improvements help?
  • How can identified improvements be paid for?

Washington State Department of Transportation (WSDOT), the Southwest Washington Regional Transportation Council (RTC), the City of Vancouver, Clark County, and C-TRAN are working together on the study. We'll be asking for your input as the study progresses.

What's New?

After considering several improvement packages, and numerous rounds of traffic operations analyses, a recommended alternative has been drafted to address 20-year transportation needs in the I-205 Corridor. You may now view the draft recommended alternative, here, online.

Citizens Committee

The Study's Citizens’ Advisory Committee (CAC) meets to provide ongoing community input and guidance. At each meeting, the final fifteen minutes is set aside for public comment.

The last meeting of the CAC was held on Thursday, September 6, 2001 (meeting summary coming soon). The committee is made up of representatives from the following organizations:

  • Burton Ridge Neighborhood Association
  • Cascade Park Business Association
  • Clark County Homebuilders Association
  • Columbia Corridor Association
  • East Ridge Business Park
  • Ellsworth Springs Neighborhood Association
  • ENAG (East Neighborhoods Advisory Group)
  • Evergreen School District
  • Fircrest Neighborhood Association
  • Friends of Clark County
  • Greater Vancouver Chamber of Commerce
  • Green Meadows Neighborhood Association
  • Marrion Neighborhood Association
  • SW Washington Medical Center
  • Vancouver Fire Department
  • Washington State Patrol

Access Steering Committee

The Access Steering Committee is comprised of expert access decision staff from the Federal Highway Administration (FHWA), Washington State Department of Transportation Olympia Headquarters and Southwest Region, as well as consultant team members, RTC and City of Vancouver staff.

Study Status and Next Steps

As of August 1, 2001, the I-205 Corridor Study is nearing completion and an Access Point Decision Report is drafted. The Recommended Alternative has been, and will continue to be, publicized through various community events, such as the 2001 Clark County Fair (August 3rd through 12th), and an Open House will be scheduled for early September. Please call RTC at (360) 397-6067 for more details or refer back to this web site regularly for updated information.

The next step is to complete the Access Point Decision Report to submit to the Federal Highway Administration (FHWA) for their approval. FHWA bases its approval decision to grant additional and/or modified interstate access on information provided in the submitted Report.

If the new and modified access requests are approved by the FHWA, then environmental documents will have to be prepared as part of the National Environmental Policy Act (NEPA) process. It is only after completion of the environmental process that implementation of any transportation improvements can begin. Additional funding will have to be secured to move forward with improvements.

I-205 Corridor Study Tasks and Schedule
Task Activities/Deliverables Timeframe
Project Management
  • TAC Meetings
May 2000 to Study Conclusion
Public Involvement
  • Citizens Advisory Committee Meetings
  • Public Information/Input

Ongoing

Data Collection Complete Complete
Existing Conditions Complete Complete
Transportation Modeling
  • Develop year 2025 model
  • Modeling of Alternatives "Packages" (up to 4)
  • Technical Memo: Modeling

Complete

20-year "Baseline" Conditions
  • Technical Memo: No Build LOS/Deficiencies

Complete

Alternatives Analysis
  • Define Individual Improvements
  • Combine Improvements into Alternative "Packages"
  • Refine and Analyze Alternative Packages

Complete

Access Report
  • Preliminary Draft Access Point Decision Report
  • Draft Access Report
  • Final Access Report
Preliminary Draft Access Report Complete
Recommended Alternative

Complete

Initiation of DEIS Process
  • Technical Memo: Environmental Conditions

Complete

Prepare Report
  • Draft Report/Route Development Plan
  • Final Report
Preliminary Draft Report Complete


The I-205 Index

Percentage of Clark County households within two miles of I-205 in 1999:
32%
(44,000)

Forecast number of households within two miles of I-205 in 2025:
62,350

Percentage of Clark County jobs within two miles of I-205 in 1999:
37%
(54,100)

Forecast number of jobs within two miles of I-205 in 2025:
83,000

Daily trips generated in Clark County that use some portion of I-205:
14%

Percentage of total highway route miles in Clark County made up of I-205:
0.4%

Percentage of daily trips generated in Clark County going to Vancouver Mall that use I-205 for part of the journey:
20%

Percentage that use I-205 destined for the Mill Plain corridor:
19%

Documents

Study Area
The area under study runs from the Columbia River on the south to the Padden Expressway on the north, and from Andresen on the west to 162nd/164th on the east. Click on the map for an enlarged (211K) view.

Stakeholder Priorities and Issues
The Management Team developed seven questions for questionnaires and interviews with a wide range of stakeholders. The purpose of the interviews was to gather opinions, concerns, and ideas early in the process from a range of stakeholders representative of the I-205 corridor community.

Citizens Committee
A short document outlining the purpose, roles, and responsibilities of the Citizens Committee formed in 1999 to offer the local community viewpoint on transportation issues and improvements.

Draft Community Criteria Statements
Collected statements pulled from the community issues document which reflect a summary of the issues gathered through stakeholder interviews, completed questionnaires, and input from the Citizens Committee.

Preliminary Alternative Packages
The consultant team has developed five alternative improvement packages to address the 2020 baseline operational deficiencies in the I-205 Strategic Corridor Study Area. The alternatives range from local street system improvements, with no freeway access modifications to significant interchange modifications and new interchange scenarios.
Draft Recommended Alternative
After considering several improvement packages, and numerous rounds of traffic operations analyses, a recommended alternative has been drafted to address 20-year transportation needs in the I-205 Corridor.
StudyArea.jpg (215763 bytes)

For more information or to sign up for the study mailing list:

Lynda David
Project Manager
Regional Transportation Council
1351 Officers Row, Vancouver WA 98661
Tel: 360-397-6067
Fax: 360-696-1847

Send mail to webmaster@rtc.wa.gov with questions or comments about this web site.
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This page was last updated January 16, 2008.