raise new questions.
(Photo © J. Maus/BikePortland)
Economist Joe Cortright says new traffic projections from a previously undisclosed report reveals an inconvenient truth about the Columbia River Crossing project. The plan to toll the existing I-5 bridge span (starting in 2016) would lead to nearly 50,000 people per day opting to drive over the I-205 bridge instead. As a result, not only would I-205 (and its feeder routes I-84 and SR 14) become jammed during rush hour, but there would be a significant decrease in traffic on I-5 which raises new questions about the wisdom of spending $2.7 billion to significantly expand its capacity.
This analysis is detailed in a new, 12-page report by Cortright’s firm, Impresa Consulting Inc. (PDF). Cortright obtained the underlying data via a public records request from the CRC and the records come from a traffic modeling report performed by CRC contractors CDM Smith.
Here’s more from the summary of Impresa’s report: