Background
Clark County’s rapid population growth is quickly outpacing the capacity of its transportation infrastructure. The need to provide for transportation mobility between growing, outlying areas of the county and the increasing travel demand between Oregon and Southwest Washington demonstrate the need to identify and plan for potential new, regional transportation corridors within the county, as well as across the Columbia River.
Purpose
The Transportation Corridors Visioning Study is the first phase of an effort to identify and assess potential new regional transportation corridors in Clark County and across the Columbia River. The purpose of the Visioning Study is to begin to answer the question: "How would we get around within our own community in the longer-term future if our County reaches one million in population?" The intent of the study is to provide a high-level “50,000-foot level” planning analysis while future phases may assess land use implications and evaluate corridors at a higher level of detail.
Leadership
A Steering Committee comprised of elected and appointed officials from agency members of the Regional Transportation Council provided policy input on the study, with technical assistance from agency staff from those jurisdictions. The Visioning Study project team was comprised of RTC and consultant staff.
Report
The study report (final draft, 37pp, 2.2Mb PDF) is intended to be exploratory and informational. It summarizes the process and outcomes of the first phase of the study which identified a set of candidate corridors that could provide regional mobility. Future phases of the Visioning effort may continue to focus on the land use and transportation implications of new corridors, eventually taking action on whether to add one or more corridors to the Metropolitan Transportation Plan.
- Transportation Corridor Visioning Study, Final Draft Report
- Main Report Body, 37pp, 2207K PDF
- Appendix A: Land Use Assumptions, 35pp, 3454K PDF
- Appendix B: Travel Forecasting Summary and Volumes, 24pp, 2251K PDF
- Appendix C: Land Use Think Tank Workshop Presentation, 71pp, 6207K PDF
- Appendix D: Corridor Definition, Assessment, and Performance Measures, 15pp, 423K PDF
- Appendix E: Analysis of New Crossing(s) of the Columbia River, 10pp, 418K PDF
- Appendix F: Transportation Think Tank Presentation, 53pp, 1228K PDF
- Appendix G: Corridor Preservation Memorandum, 8pp, 46K PDF
- Appendix H: Steering Committee Meeting Agendas and Notes, 159pp, 4747K PDF
- Appendix I: Other Background Research and Technical Memos, 8pp, 2462K PDF
- Appendix J: Public Outreach and Comment, 8pp, 136K PDF
Findings
The Visioning Study resulted in several key findings. The land use assessment indicated that, based on existing policies and urban growth areas, Clark County will tend to grow outward with some densification in already-established urban and rural centers, and a continued growth in cross-Columbia River trip-making. Additionally, the travel demand from these growth patterns will show a mix of regional and sub-regional trip-making, indicating a need for new, sub-regional corridors to accommodate shorter trips in addition to the regional corridors. The Visioning Study also examined potential strategies for corridor preservation, most of which require inclusion of new corridors on an adopted local Comprehensive Plan as well as the Metropolitan Transportation Plan.
Candidate New Regional Corridors Map
The Visioning Study culminated with a map showing several potential regional corridors within Clark County as well as potential new crossings of the Columbia River.
A high-resolution version of the draft Candidate New Regional Corridors Map (575Kb PDF) is also available.
Reports presented on this page, and elsewhere on this site, have been prepared with/for Adobe® Acrobat®, version 4 or higher. You may download Adobe Acrobat Reader, free of charge, if you don't already have it.
Questions or Comments?
E-mail or phone:
Lynda David
Regional Transportation Council
P.O. Box 1366
1300 Franklin Street
Vancouver WA 98666-1366
Tel: 360-397-6067
Fax: 360-397-6132
       
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