There will be single-lane closures of the Hood River-White Salmon Interstate Bridge on Tuesday beginning at 9:00 a.m. until work to repair a damaged guardrail is complete, likely around 3:00 p.m.   Flaggers will direct traffic on the bridge around the work zone.  This work is likely to cause traffic delays of up to 30 minutes while work is underway, depending on traffic volume.  Bridge users are urged to plan ahead for delay or seek alternate routes during these hours.