The lower road to Baker Hot Springs is now permanently closed at Park Creek campground. The blockage is only a couple of hundred yards from the paved Baker Lake Road, so it is a walk of a couple of miles to the trail. The closest road access to the hot springs is now via the upper road, Forest Road 1130, that branches left off the Baker Lake Road just after crossing the Boulder Creek bridge. Stay on this road for 4 miles, then turn right downhill on Rd 1144 (may not be signed). Park at the obvious large parking area shortly after rounding a sharp switchback.
visit Mount Baker Volcano Research Center at http://mbvrc.wwu.edu for information on chemistry and temperature of the hot springs waters.