Four-lane, 200 km-long highway from Taejeon to Hamyang and on to Tong-Yong with 8 tunnels totalling 18 km. Longest is 6.4 km at Jang Su under construction by jv of Ilyang and Shin Woo. Others range from 0.7 km to 2.8 km. Profile 13.6 m-wide x 8.2 m-high in granite with rockbolts and shotcrete. Tamrock drillrigs with Sandvik bits. February 1999.
