Likely a concrete-built water storage tank.

However, that it is next to the river makes me wonder what type of water.

Review highways in this area.

Glen Fuels somewhere here https://www.glenfuels.ie/depots/4/new_ross/

This city block might be known as Spencer Place.

Fix 2 courtyards (I'm not sure if they are true courtyards that go all the way to the ground, in which case it's a matter of managing the number of storeys.

Road layout changes at McDonald's

Barrington's Hospital is due to close, and be replaced by a new hospital way/1335524644

Possible underground reservoir. man_made=reservoir_covered