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710 Tunnel Technical Study Information
Please use the navigation buttons on the left to find more information about the study.
If you require more information, please contact us, or visit us at:
Caltrans Media Affairs and Public Relations - (213)897-3656
New! Meeting Minutes of the Final Joint Committee Meeting of the SR-710 Tunnel Technical Study Steering Committee and Technical Advisory Committee
Tuesday, March 30, 2010
South Pasadena Public Library
Upcoming 2010 Community Meetings
The SR-710 Tunnel Technical Study Team has recently completed the DRAFT Geotechnical Summary Report. Additional community meetings are scheduled to share the outcome of field exploration work conducted as part of the Study. A short presentation on information contained in the DRAFT Report will summarize the geology, faulting, seismicity, material properties, hazardous materials and groundwater conditions within the Study’s five zones.
2010 Community Meetings Flyer (English)
2010 Community Meetings Flyer (Chinese)
2010 Community Meetings Flyer (Spanish)
2010 Community Meetings Flyer (Armenian)
Draft Geotechnical Summary Report Ready for Review
The State Route 710 Tunnel Technical Study has completed its mission to gather data on geological conditions within five geographic zones.
Data collection and field exploration work, as part of the Study’s Exploration Program, has been reviewed and evaluated. Descriptions of geology, faulting, seismicity, material properties, hazardous materials, groundwater conditions, and tunneling considerations are provided in depth in the SR-710 Tunnel Study DRAFT Geotechnical Summary Report.
The Executive Summary of the DRAFT Geotechnical Summary Report contains an abbreviated review of the data, which in its entirety contains several volumes.
The Study information provides Caltrans and Metro a preliminary basis for evaluating the feasibility of tunneling within each zone. The two partnering agencies will determine the next steps. In the interim, the DRAFT Geotechnical Summary Report provides an efficient base and sufficient information to compare zones from a geotechnical perspective.
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First Issue of The Explorer Newsletter - Fall 2009
The Explorer is the newsletter of the SR-710 Tunnel Technical Study that provides information to stakeholders and community members about the Study's progress and important updates.