No sure what you are depicting there. Are you planning on bringing the Service conductors into a wireway, then over to the left to the main Service Disconnect and meter center, then from the Service Disconnect BACK through the same wireway to feed another Main disconnect for a sub panel on the outside wall? If so, I don't think so. The Service is required to be it's OWN CIRCUIT up to the Service Disconnect, then after than you can do whatever you like. If this is for two separate meter centers off of one service feed, is the Utility OK with this?