Hi, you have added address tags...
183 Argyle St, Picton but the Candy store is located at Emmett St, Tahmoor on the map.
If the shop has moved you need to move the shop on the map too.
Just changing the tags makes this location wrong and the true candy store site wrong too.

Ok, I have had a further look now and see by you edits that you wanted the bridges, culverts, etc mapped. Cheers

Not sure what specific errors you are referring to but there is no tag to add to the waterway if it crosses a bridge as it is implied that bridges cross above waterways. Any culverts I add, I always add the layer tag (-1) to the waterway.
As I am adding waterways from a dataset and satellite imagery, it is not possible to add how the waterway crosses the roadways, especially culverts, tunnels and fords and even bridges are not very distinct in country areas. This needs to be done later by other mappers doing surveys. Where others have mapped culverts or ford or combined culvert and ford at some crossings, I have preserved those.
Due to the large amount of data, I would be guilty of not zooming in close to every crossing to ensure the dataset aligns with satellite imagery closely but from doing so much of this I notice I am not alone.
If waterways are mapped crossing road or track infrastructure without bridges, culverts, tunnels or fords it is not an error, it is an indication that no one has surveyed the area yet. If Osmose is picking these up, I would expect them to be considered an alert and not an error.
No doubt that I have made a few errors whilst entering so many waterways but am using the Josm validator before upload and also using Osmi and the WaterwayMap later.
I'll have a look at Osmose too when I finish the catchment.

Hi, welcome to osm.
I noticed the first couple of edits and feel you need a bit of help to do it correctly so that other editors don’t have to follow behind you to fix the building shapes.
You are expected to edit/shift the building nodes to reflect the exact shape of the building. The microsoft building footprints are rubbish and only indicate there may be a building shape here - you then need to fix the shape presented to you before upload and you need to zoom in close to see the shape of the building. Thanks.

Upon further viewing area, it does seem likely to be a gated community segregated from other residential areas.

Hi, Rondanella Drive appears to me to be a usual residential street with normal access to residential housing. Why is it tagged access=private? It is a gated community or similar?

Hi, this looks like a service road to me and not an unclassified road
highway=*

You could add other useful information such as mapped here so that car navigation apps can locate your address way/693134235

Hi, the building tag is used to map the house footprint and not the land plot.
The owners name is not used in osm and a name is only for houses that do have a name such as some heritage houses.
osm.wiki/Names

Hi, osmi has picked up an issue here that needs correcting.
https://tools.geofabrik.de/osmi/?view=areas&lon=153.56149&lat=-28.87015&zoom=19&baselayer=Geofabrik+Standard&overlays=duplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways%2Cduplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways

Updated now in
changeset/144954441
https://overpass-api.de/achavi/?changeset=144954441
I added flood_prone=yes from the flood prone sign to the stream crossing after the bridge, added culverts, etc in the Horse Creek area and removed the ford from both Horse Creek and Middle Creek crossings.
Feel free to change based on your observations.

Ok, thanks for info...I will make the changes as suggested.

There is another ford and bridge combo 1.5 km further north where Horse Creek crosses.

Hi
I noticed a ford and a bridge next to each other here
changeset/101033067#map=19/-27.19640/149.05023
Are you able to confirm if the ford still exists or was it replaced by the bridge?

Hi, one of the East Ocean sites has been mapped onto a railway line. Can you shift it to the site it operates from.

I fixed the multipolygon error

Hi
Osmi picked up a problem here
https://tools.geofabrik.de/osmi/?view=areas&lon=150.51689&lat=-23.33067&zoom=17

Fire station is fully mapped at the current location
way/764309959#map=19/-33.88880/150.92401&layers=D

Fixed now.

This number is listed against 100 St Johns Rd, Cabramatta NSW 2166, Australia which is probably the current Fire Station.
So I’ll delete the number.
Tks, Nev