It started the week were there [10/23 - 10/31] and was very loud from the room we were in [455]. They started with demolition of the existing bridge over the canal. The most annoying parts in no priority order were the beeping of the construction vehicles, the pounding [slamming] sound of the demolition, and the workers screaming over the noise. There was no way to relax on the balcony and you could even hear the noise in the room with door closed. The project is a 6 - 8 month project per the signage on the road. I was told by Disney Managers [onsite at the BC] that the demolition phase would be the loudest and last until year-end [now]. That's not to say that the noise will be any better or worse. I would suggest requesting a Dunes Cove Pool room view which will shield you from front row seats of the construction.