Quick question

So what’s the build restrictions I’m facing here that ceiling at the end there has pillars all the way down to the ground underneath the sea but I can’t extend any further towards the other side of the water the route round is probably only about 4x the distance from side to side but it’s a lot faster if you’re transporting things like large slow dinos or stryders etc so I’m wondering if I can finish my bridge and what I need to do to get it done?