That's a good question. I know they've made improvements, but I think that road was there before SpaceX (beach access for locals). IIRC I've heard that these early boosters are in the like 220-250 ton range, then the added weight of the SPMTs, that's definitely some mass rolling down the road. A lot of points of contact though, hmm.
Alright a little bit of news before putting the welding helmet on this morning
NASA officially declared SLS's tanking test a few days ago as a success, meaning the Sept 27th launch window is on the table if they get the waiver signed for the extended life of the FTS (Flight Termination System) batteries by the FAA (I think?). Buuut, the latest predicted paths of the incoming tropical storm are looking like they will not only interfere with that launch date, but may force NASA to roll the rocket back to the VAB for protection. If that ends up happening, the murmurs are saying end of October or November for the next realistic launch dates
And I don't recall if I posted this but Relativity has been ramping their test campaign, and have now completed a 57 second static fire. Full duration is next, these guys have been kicking ass
And this engine view they've been offering is just incredible