There is a shared path bridge about a 100 metres north of Mountain Hwy that was built as part of the grade separation. At the time of your blog, it was sometimes open to the public, sometimes not depending on what works was going on. It will be clear once the path is completely open as the section that goes behind the station feeds directly onto this bridge.
Up further, a bridge over Burwood Hwy alongside the railway line to link up the path properly might be a good idea. A ramp to take out the steep pinch at Upwey might be nice along with a bridge on the upper side of Upwey to remove the dangerous road crossing which is blind heading towards Belgrave. And resurface the entire path. And replace the bridge in Ferntree Gully. I'm scared it will fall down one day and the gaps between the boards are so wide now I have to watch where my dog walks.
Next rant is across the board.
The shortsightedness shown by governments and councils is staggering. Philip mentioned the Ringwood - Boxhill path in your blog. Have shared path facilities been installed at all the level crossing removals that have been built over the last few years? Or do cyclists have to stop at every road crossing for lights? They probably won't even bother having bicycle lights so legally you have to get off and push your bike over the crossing. So many shared paths where bicycle lights have just been 'omitted' because it's cheaper to put up shared path 'end' signs before every road. Someone needs to do an audit of all the bicycle and shared paths in Melbourne and list all the crossings where bicycle lights are needed.
As some have already mentioned, many of the problems lie in the fact that many shared paths were originally footpaths which have been reclassified for shared use. Many are not suitable at all for shared use. Many have power poles and other crap smack bang in the middle of them. If you're going to do something, at least try to do it properly. Sick of half arsed efforts. I'd hate to say it, but when it comes to shared paths in Melbourne, nothing is sometimes better than something.
My understanding is that the state government (either directly or through VicRoads) provides funding for shared paths but it's up to councils to maintain them. In the outer east, that comprises of letting shared paths fall into a state of complete disrepair (subjecting users to substandard and possibly dangerous infrastructure for decades) until the councils can convince the government to give them another grant for major repairs and reconstruction. If only councils would do their job and maintain public infrastructure in the first place.