Good day folks
We need to temper this debate with a practical understanding of what the bases do. They are not simply to berth the ship but also provide maintenance and secure locations for leave periods. Having your workshops co-located with the wharf is essentially to efficiently carrying out the former while being somewhere close to your home helps with the second. A shared FOB (Navy/Civilian) does nothing to address this .... particularly if it is on 5km away. All that would appear to do is add an additional cost and have the RAN essentially subsidising another facility for the civilians to use. Lets face it ..... everything in Sydney is close to something and wharfage is at a premium as places like Barangaroo and Darling Harbour have removed a lot fo capacity. What are you going to find within 5km .... possibly only Cockatoo Island and that option appears to be well beyond the realms of reality. So a FOB 5km north does not appear realistic or beneficial.
Remember FBE has the biggest graving dock in the Southern Hemisphere within its confines. FBW is located near Henderson (very near) with its common user facility and expanding maintenance facilities. These are essential support mechanisms for the fleet.
Both these facilities have growth capacity and can cater for our current fleet size (noting we used to trot up frigates three deep alongside ... that makes a lot of use of a wharf). The only exception may be the Attack Class noting there are no dedicated submarine facilities in the East. It will be interesting to see how they deal with that (Cockatoo Island could be a great locations but as noted above I think this option has about as much likelihood as Adelaide winning a premiership this year in the current climate).
* for those not in Australia ...... Adelaide an Australian rules football team who are running dead last ..... Mind you I am in no position to be critical as I barrack for St Kilda who have been singularly unsuccessful in the 50 plus years I have supported them and last won in 1966 and choked in the grand final in 2009 and 2010 .....
Current commercial berths in Sydney and Bintang ...and their uses ...can be found here
Port Authority of New South Wales' provides the latest depth information for the shipping berths and channels within Sydney Harbour and Botany Bay.
www.portauthoritynsw.com.au
Port Botany is operated by NSW Ports. All berths in Port Botany are leased to terminal operators. There are no lay up berths available in Port Botany unless by prior agreement with the relevant terminal.
www.portauthoritynsw.com.au
If we were planning to invest in a new FOB then it would be in our area of operations which would staging locations not long term bases for ships as such. And they wont necessarily be in Australia (i,e Manus) and if they are they would be further North (i,e Darwin).
I do suggest before we head down this rabbit hole of suggesting relocating irreplaceable facilities we so some research as to the benefits or otherwise of the proposed option and the cost.