Tunnel under San Francisco Bay to begin construction in 2010

摘要

The tunnel is expected to include 2.7-m- (9-ft-) high steel pipe in a 4-m- (14-ft-) high corridor and will be run as deep as 31 m (103 ft) below the bay floor, the San Jose Mercury News reported. The project also will rebuild pipelines, water treatment plants and Calaveras Dam. north of San Jose, over the next five years so that they can withstand a quake of up to magnitude 7.9 on the San Andreas fault and 6.9 on the Hayward fault.