Redwood City, CA
Crossing 900
Scope/Solutions
Adjacent to the Redwood City Caltrain station, Crossing 900 includes two mid-rise office buildings sharing a landscaped podium over retail space and below-grade parking. The Level 4 podium connects the two towers, which are seismically separated with an expansion joint at each above-grade level up to the podium level. SGH was the designer of record for roofing and waterproofing systems.
SGH designed below-grade waterproofing, podium waterproofing, and low-slope roofing. Highlights of our work include the following:
- Established performance criteria for the roofing, waterproofing, and expansion joint systems
- Collaborated with the design team to coordinate the structural slab, landscaping, and drainage for the podium
- Designed typical details for the roofing and waterproofing systems and developed details to integrate roofing and waterproofing systems with other enclosure systems
- Designed the waterproofing system for the seismic expansion joint at the podium to accommodate movement up to 8 in.
- Coordinated the expansion joint design with landscape finishes to make it as inconspicuous as possible
- Assisted the project team with value engineering evaluations of concrete placement methods for below-grade walls
- Provided construction administration services, including reviewing related submittals, responding to contractor requests for information, and visiting the site to perform special warranty inspections and observe as-built construction to compare with the design intent
Photo by Chad Ziemendorf
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Project Summary
2016
Completion Date
LEED
Certification
Solutions
New Construction
Services
Building Enclosures
Markets
Commercial | Mixed-Use
Client(s)
Korth Sunseri Hagey Architects
Specialized Capabilities
Roofing & Waterproofing
Key team members
Additional Projects
West
706 Mission Street
Together, a new forty‑three story tower and the historic ten-story Aronson Building offer 146 condominiums and many amenities, such as a fifth-floor club level and resident programs and services. SGH consulted on the building enclosure design for the project.
West
The French Market
SGH provided fire life safety and accessibility consulting services to assess the original French Market building and identify conditions that may need to be addressed as part of the planned renovation project.