1 tower and many rockets. From the looks of follow on videos, they FUCKED up the pad big time. NASA would have spent decades designing a over engineered pad that would have came in 100% over budget. Space X took a risk from the looks of it and from the outside looking in, they'll need a redesign for the next launch.
"3 months ago, we started building a massive water-cooled, steel plate to go under the launch mount. Wasn’t ready in time & we wrongly thought, based on static fire data, that Fondag would make it through 1 launch. Looks like we can be ready to launch again in 1 to 2 months."