More info...
There will be some blasting. Extensive heavy work is planned on the switchbacks and near the cables area.
It will be a bit like road work delays... Rangers with radios will act as flagmen, holding back all hikers at a safe area until they get the all clear message, then sending people through the work area in a group. The small number of hikers coming out via Trail Crest should expect delays, but will be allowed through when safe.
