Interstate Bridge, I-5 over the Columbia River, Portland, OR and Vancouver, WAInterstate Bridge Replacement Program
ESTIMATEDDate confidence: ESTIMATEDA target, not a fixed dateHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all ESTIMATED pins65% CONFIDENCEOverall confidence: 65%How well the pin's source and references back up its dates.Weighted average of how firmly 7 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins from 50% to 74% confidence
The program says replacement-bridge construction is anticipated to begin in 2028 (contractor hired in 2027) and that program completion was extended from 2034 to 2045. These are planned dates; no ground has been broken, so the start is a year-level forecast.[1]Oregon and Washington plan to replace the 105-year-old I-5 Interstate Bridge over the Columbia River with a fixed-span bridge, rebuilt interchanges and a light rail extension. The program's 2026 estimate for the full five-mile corridor is $14.4 billion (range $13.5 to $15.2 billion). Federal environmental review finished in July 2026; construction of the replacement bridge is expected to begin in 2028 and last six to seven years, with full program completion now 2045.
$14.4B
1.00