The Blu Harbor residential development is located in Redwood City, a seismically active region in California. Once a former marshland with a major slough until the late 1950s, the site was reclaimed by placing imported fill over the native compressible clay deposits, locally known as Bay Mud. The project site was formerly used as a private marina with approximately 50 boat slips. The 12½-acre site is surrounded by water on three sides, with an inner marina at the center of the site.
ENGEO utilized a deep soil mixing technology brought from Japan to the US and designed a waterfront stabilization system for a high-density waterfront development project. Waterfront stabilization was deemed necessary to protect proposed structures and improvements from seismically induced lateral deformation.
The waterfront edge containment system of DSM columns provided the following benefits to this project:
2018 CalGeo Outstanding Project of the Year Award
2018 ASCE Geotechnical Project of the Year Award