Engineering studies underway by Tabasa on 10 km-long section of Horta-Cerdanyola alignment for 2.9 km-long, twin-tube highway tunnels with 79 sq m section in porphyry, granite and phyllite using roadheader and drill/blast with sprayed concrete support. Tenders expected 2002 for completion 2005 using private finance. Visit www.mma.es October 2000.