Tunnelling contractor Hyodong Development Co. has nearly completed excavation on two twin-bore tunnels on Section 6 of the Iksan-Pohang expressway. The 550 m-long Duckchon tunnel has already been holed through on both drives and concreting is under way. During the first week of February, the last five metres of the first bore of the 650 m-long Shinjung tunnel was being completed with one-metre rounds in weathered rock, whilst the second had 30 m to go. Hyodung is using drill-and-blast with a Tamrock Axera 3-boom T11S-315 jumbo, supplied by Sandvik Suh Jun, with mucking out by a Caterpillar 966F wheel loader into 16 t highway dump trucks. Sprayed concrete is the primary support in massive limestone using a Normet Spraymec 9150WP rig, also supplied by Sandvik Suh Jun. The two tunnels will be linked by the Shinjung Bridge across a central valley. The main contractor is Ultra Construction Co. for the Client, Korea Highway Corporation. Visit www.smc.sandvik.com, www.cat.com, www.normet.fi and www.hdconst.com 08/04.