Plenty of parking at the side of the road next to the bridge.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 24/07/2020. It remains the responsibility of any pilot to check for any changes before flying at the same location.
There is a known issue that sometimes causes an error message that you probably saw, and the entry doesn’t appear immediately on DS. This will be sorted later.