Work to place an aerial fiber optic line in downtown The Dalles will be taking place Friday starting at 8:30 a.m.  Underground Specialties will have a crew placing an aerial fiber optic line starting in the alley way between 2^nd and 3^rd Streets in the block of Court and Union Streets.   This will continue along west side of Union St south then head east crossing Union Street and end in the alley way between 3^rd and 4^th Streets in the block of Union and Court behind Washington Federal Bank.   Drive through for Washington Federal Bank will remain open, but all other traffic is asked to take an alternate route.  Duration of work should be no more than a day.  Although traffic will be flagged around the construction site, alternative routes are advised.