A north-south route, the section of Route 1 through
the centre of the Island, comprising the Aberdeen Tunnel
and grade-separated road networks at its approaches,
was completed in March 1982, linking Aberdeen with
Happy Valley and the Cross Harbour Tunnel.
"The U-shape disused tunnel is reckoned to be used for shipment of ammunition during the war time and might have been abandoned or filled up after the war time." according to govt study this year. Says CEDD doesn't have further details. Map included in the Heritage Impact Assessment for new pumping station. http://www.amo.gov.hk/form/HIA_Report_Cotton%20Tree_%20Drive_%20FWPS.pdf
