It's going to be interesting later this year when 07/25 will be completely closed for several weeks so that piling rigs (with their 150 foot tall masts) can be brought in to the new road underpass project. Exact timings TBA I believe but there are some details in the RMS project documentation (available online somewhere - I don't have the reference to hand). I recall reading that they're going to try and do it at the time of year with the lowest statistical likelihood of westerly winds.
The closures this last week have only been for limited hours each day while they crane the construction village buildings into place. The upcoming ones will be 24/7 for several weeks at a time.