Thanks for your message. This is not work related to the library, but we did find out more about it.
It turns out Campus Facilities is doing some foundation work on the wall below Innis, which is probably vibrating up through the floor. I have been told this work will take another day or so, but the contractor has agreed to do most of the drilling work in the morning, with patching work being done in the afternoon.
We apologize for this inconvenience, but appreciate your patience.
Anne Pottier, Associate University Librarian, Services & Facilities
Answered by: Anne Pottier (Associate University Librarian, Library Services)