Paul,
The trail closure is located above Little Yosemite Valley- past the trail junction with Clouds Rest- on the steep area 1/4 mile just before the famous main cables. Other than doing some face route up the dome, there will be no easy way to bypass this closure for the limited Monday-Thursday time they are doing the well needed work on this part of the trail. Plan to do the dome on weekends only this early part of the 2005 season.