Yawl Hill Lane is already closed (on an emergency basis) to repair a burst pipe. Starting 16th, the work is expected to finish by Monday 22nd September.

Here is the On Site Notice which gives official diversion routes and a contact number for enquiries.

(I have also reported the burst main just down from Hunters Lodge to SWW. You can expect works there I think, and take care as the edge of the road is rather damaged.)