Santa Catarina tunnel under Morro do Boi hill is 1.0 km-long with face section of 100 m킲 in rock and 120 m킲 in soil. Finished dimensions will be height 9.4 m and width 14.4 m. Shotcrete lining using wet thin stream method will consume 5,500 m3 applied by Aliva AL-500 equipped with AL-307 spraying boom, AL-285 spraying machine and AL-403 dosing unit. Sept 1999.
1 km-long Morro do Boi tunnel in Santa Catarina region reported open to traffic in 2000. 44/01.
