Movement of one of the new transformers for the Celilo Convertor Station will take place Thursday night in The Dalles and continue into early Friday morning, impacting a number of traffic routes.  The oversized load will start at 9 p.m. Thursday along River Road to Webber Street, across Interstate 84 onto West 6th Street and then to Cherry Heights Road and on to West Second, going the wrong way up that street to the roundabout.  From there it moves on to Highway 30…then south to Highway 197.  There will be flagged locations with detours throughout the late night and early morning hours, with rolling slowdowns on Interstate 84 between 11 p.m. and midnight, and no traffic will be allowed into downtown via the roundabout between 2:30 a.m. and 5 a.m. Friday.  The entire operation should wrap up around 7 a.m. Friday.