Expect smoother travels on Interstate 84 in the Columbia River Gorge this Memorial Day weekend with the re-opening of lanes in two locations that were closed in recent weeks for improvements.  The Oregon Department of Transportation says both lanes re-opened this week in time to help ease the expected rush of travelers over the three-day holiday weekend.  One of them is the right westbound lane just east of Cascade Locks, which closed earlier this month to repair an embankment damaged by a slide.  This work was scheduled for completion in June, but finished ahead of schedule and re-opened Thursday.  An eastbound lane in Hood River, closed for repair and replacement of bridge decks on structures carrying I-84 over Hood River, fully re-opened earlier this week.  The work was part of a project to repair aging structures between Exits 63 and 64.  In June, ODOT says travelers should expect periodic nighttime eastbound lane and ramp closures as crews complete the project.