Drive under on my way to work tomorrow.
I'll have a look, don't think anything but construction traffic has been near it.
Unless it is officially open, I'd doubt there would be pedestrian access.
I'll get back tomorrow.
Seem to remember the original schedule was for it to be open to traffic in October 2020 so I guess they're behind, or I've got it wrong, both equally likely! If its not fully open not sure there would be access as it will come out onto a building site.