Tunnel Control Centre, 41 O’Connell Tce Published November 22, 2013 at 1620 × 1080 in Tunnel Control Centre, 41 O’Connell Tce ← Previous Next → North West aspect of the Tunnel Control Centre 654 Series glazing (west) IGU with a 50mm gap acoustic gap (west) 445 and 245 Series sliding doors (west) 450 Series glazing (north) 13.52mm Eclipse advantage grey glass (north) 445 siliding doors (north)