Emergency pavement repair work on Washington Highway 14 through Skamania County will begin Friday.  Extreme temperatures, record rainfall, and freeze/thaw cycles left miles of roadway rutted and crumbling.  Beginning Friday contractor crews working for the Washington State Department of Transportation will begin work to repair sections of the highway damaged by harsh winter weather.  During daylight hours on dry-weather days, single-lane closures will be necessary in either direction on Highway 14.  Drivers can expect delays of up to 20 minutes.  Additional work to repave stretches of Highway 14 in Klickitat County is scheduled to begin in mid-April, with all emergency paving repairs scheduled for completion by late spring.