Does this bridge exist?

onosm.org submitted note from a business:
Name: Clayton Hotel Liffey Valley
Phone: +353(0)16258000
Website: https://www.claytonhotelliffeyvalley.com/
Twitter: undefined
Hours: Monday-Sunday 24/24
Category: ,Hotels
Address: Liffey Valley

The overflow car park isn't as big as indicated, it's about half the height. See the satellite view: https://www.google.ie/maps/@53.3707669,-6.4040754,201m/data=!3m1!1e3
I made the change from football pitch to car park but did not know how to change the size.

Speed ramp here

Ballycreggan House

Is this a former landfill site?

how should it be marked?

Parts or all of this bypass are now in use but I'm not sure how to go about changing this.
I've uploaded a gpx track

Courtyard not showing properly.

"This pub is now defunct. It's going to be knocked down and replaced with an apartment development."
The place has gone or never existed. This is an auto-generated note from MAPS.ME application: a user reports a POI that is visible on a map (which can be outdated), but cannot be found on the ground.
POI name: The Black Horse
POI types: building amenity-pub
OSM data version: 2019-04-19T10:36:02Z
#mapsme