Councilor Liberty was kind enough to share this memo (PDF, 39K) to his Metro colleagues [already in the public record] regarding the Columbia River Crossing project. He has some doubts:
The problem is defined entirely in terms of vehicle movement (cars, trucks, bikes, pedestrians, transit) and safety. The definition does not encompass the sources of the congestion (greater job growth south of the Columbia; more houses north of the Columbia) nor does it articulate any broader purpose for the bridge improvements (urban design, economic development, environmental or equity goals of some kind.) In other words, vehicle movement and related safety are stated as the ends, not the means.