Hood River fire crews were kept busy on Interstate 84 just west of the city over the weekend.  On Saturday morning, crews responded to a reported fire near the train tracks at Mitchell Point on milepost 58, closing a westbound lane of the freeway for a time and putting out the fire by early afternoon.  Later Saturday evening, they dealt with a car fire that kept eastbound I-84 shutdown for about an hour.  And on Sunday afternoon the fire at the Mitchell Point location restarted, sending firefighters there to quell the flames again, which they did in a fairly short period of time.  A recreational vehicle was destroyed in a fire Friday night in The Dalles.  According to Wasco County emergency dispatch reports, the fire occurred shortly before 11 p.m. Friday at 13th and Shearer.  The RV was a total loss, and another parked vehicle and a nearby home were damaged in the fire.