I am glad you started this thread. I was about to post a notice myself.
The MMWT (Main Mt Whitney Trail) is closed Tuesday-Friday, Sept 4-7, and Monday-Thursday, Sept 10-13. The Labor Day holiday is Monday, Sept 3. Interestingly, I see that the Trail Crest exit permits do not show a closure for those dates.
Word is that they are making some major repairs to the switchbacks, and don't want to stop for hikers passing through. I have also been told that there may be some temporary periods on other days where hikers will be asked to wait before passing through areas on the switchbacks.
These closure days may be quite a surprise for people who just walk in to the Visitor Center and hope for a walk-in permit on those days.
Other than on Recreation.gov, I can't find any info on the Inyo web site. If anyone has more info, please do post here.
