They were still building, they may have wanted to add a ramp to it to go over it. With that being said, this side is a dead end, they could've been blocking off their road because it could be their house inside.

They were still building, they may have wanted to add a ramp to it to go over it. With that being said, this side is a dead end, they could've been blocking off their road because it could be their house inside.