Background

The Santa Clara Valley Transportation Authority (VTA) intends to construct the Silicon Valley Rapid Transit (SVRT) Project in San Jose, California. This will be a 26.2 km (16.3 mile) extension of the Bay Area Rapid Transit (BART) heavy rail rapid transit system from its planned terminus at the end of the Warm Springs Extension in Fremont, to downtown San Jose. The proposed alignment currently includes seven stations (three above and four below-grade), a proposed future station and vehicle storage and maintenance facilities. The alignment is composed of two major segments:

1) A Line Segment which will be approximately 11.5 miles of at grade, elevated and cut-and-cover track from Warm Springs to San Jose, and

2) A 5.1 mile long Tunnel Segment, consisting of twin bored tunnels and cut-and-cover structures through downtown San Jose.

Fugro performed geotechnical field exploration that included more than 15,000 linear feet of CPT testing. The CPT testing included dissipation tests and seismic CPT soundings. Fugro also performed advanced laboratory testing integrated the CPT exploration data with boring data into a GIS database

As currently planned, the Tunnel Segment includes at-grade and open cut track, four (4) cut-and-cover stations, and a cut-and-cover track crossover structure. The cut-and cover station and the crossover structures have a cumulative length of approximately 4970 feet. The remaining 4.14 miles of the alignment will be twin, 19.5-foot diameter tunnels.

Fugro's Role

The joint venture of Hatch Mott MacDonald T&T, Inc. and Bechtel Infrastructure Corporation (HMM/Bechtel) are providing engineering design services for the tunnel segments (Segments 3 and 4) of the SVRT Project. Fugro is providing the following services:

• Project Planning, Management and Supervision
• Permitting
• Field Investigation - 148 CPTs, totaling over 15,000 linear feet of CPT testing, which included dissipation tests and seismic CPT soundings
• Advanced Laboratory Testing (CRS consolidation, Simple Shear, Ko Triaxial Testing)
• Integration of Boring and CPT Data in a GIS Database
• Geotechnical Data Reports

Fugro conducted the majority of the geotechnical field exploration program for the tunnel segments of the SVRT Project from October 15, 2004 to March 5, 2005. We are inputting the field and laboratory data in a GIS database. This will be submitted as part of the Geotechnical Data Report.