
Project Description
Client: Brookfield Properties
Location: Yucaipa, California
Project: Yucaipa Logistics Center
Our scope consisted of a supplemental investigation and quality control services during construction. The supplemental investigation was focused on characterizing the site conditions along the alignment of the proposed segmental retaining wall.
Our firm also performed the design and prepared the construction plan for the segmental retaining wall. Construction services included compaction testing, special deputy inspections, and materials testing.
The Challenges
During site grading, an old channel filled with dumped fills and trash up to 30 feet deep was encountered. A portion of the material could not be removed through conventional grading. As a result, the remaining materials were treated in place using compaction grouting techniques. Our firm developed the plans and specifications for this work.
The design of the segmental wall to be constructed along the northern boundary required consideration of the potential for deep scour along the active drainage. The wall was constructed with additional embedment to maintain stability in the event of heavy scour along the toe of the wall.
Project Highlights
363,000 SF tilt-up concrete warehouse building.
300,000 CY of earthwork
Segmental Retaining Walls up to 30 feet high constructed adjacent creek
Compaction grouting along one property line to treat unsuitable soils left in place




