Planning Studies

SR-35 Columbia River Bridge Study

The SR-35 Columbia River Crossing Study will result in the completion of a Bridge Type, Size, and Location Study (TSL) for a future Columbia River Crossing between the cities of Bingen and White Salmon in Washington and the city of Hood River in Oregon. During the TSL study process, engineers will collect and analyze data to develop several feasible bridge concepts. These concepts will then be evaluated against criteria developed from stakeholder input. The concept that best addresses stakeholder needs will be the recommended alternative.

Clark County Freight Mobility Study

The Clark County Freight Mobility Study will articulate why freight and goods movement is important to Clark County's economy and employment. The Study will also provide understanding of the key elements of freight movement. Click here for an overview of the study, and to find some study materials available for download.

New Transportation Corridors Visioning Study

Click here to review Vision Plan Candidate Corridors (582Kb PDF).The Southwest Washington Regional Transportation Council Board of Directors acknowledged the need to plan for and evaluate future transportation and development patterns. The Board therefore initiated a long-range, visioning process to study the need for new transportation corridors in Clark County.

Currently adopted land use plans and regional transportation plans include a 20-year growth forecast and transportation needs for the next 20 years but do not look at the longer-term timeframe. Yet, new transportation corridors take a considerable time to plan for and construct. It was felt that now is the time to define a vision for where long-term growth may take place and the transportation facilities needed to serve it.

The purpose of conducting the transportation corridor visioning process was to answer the question: "How will we get around within our own community in the longer-term future if our County reaches one million in population?" The study focuses on connecting places and nodes of growth in Clark County. The study also analyzes the need for future crossings of the Columbia River.

Click here to review the map showing Vision Plan Candidate Corridors (582Kb PDF).
Click here to review the draft Transportation Visioning Study report (1.93Mb PDF)

Clark County High Capacity Transit System Study

Clark County has seen significant economic and population growth over the past 25 years and is planning for continued growth over the next 25 years. This growth has led to economic prosperity. However, growth has outpaced transportation investment, which has resulted in large increases in traffic congestion and travel delay. In response to this need the Clark County region is proposing to undertake a High Capacity Transit System Study that can provide a framework for long-term investments in the region's transit system. The study's recommendations are intended to help maintain the growth and economic prosperity of the region by providing additional mobility options to key activity centers and along major travel corridors.

SR-35 Columbia River Bridge Feasibility Study (2004)

The SR-35 Columbia River Bridge Feasibility Study is the result of a local grass roots effort by a wide range of individuals who are interested in the near and distant future of the White Salmon/Bingen, Washington and Hood River, Oregon region. The desired outcomes of the feasibility study are:

Study Archives

RTC has completed numerous studies over the years. Some that have been presented here on our web site are now archived and will remain for your viewing. Visit the Archived Studies page to see summaries, and the Final Reports page for downloadable documents.

Affiliated Studies

Listed below are studies related to local transportation issues, being conducted by agencies other than RTC.