PROJECT DESCRIPTION:

The primary purpose of the overall project is to deepen the Main Channel, berths and turning basins to 53-ft MLLW to improve deep-draft navigation and maximize the beneficial use of dredged material. The project consists of dredging 8.8 MCY of sand, silt, clays and formation materials; placement in five in-harbor sites; rock dike construction using three million tons of rock; removal of nine utility crossings, vertical wick drain installation and associated demolition in fill areas.

GBA SERVICES:

• Reviewed Geotechnical Investigations.
• Developed Dredging and Rock Dike Schedule.
• Prepared Dredging Cost Estimate.
• Perform Daily Hydrographic & Topographic Surveys of all Construction Activities.
• Conduct Daily Quality Assurance Inspection.
• Review and Comment on Contractor's RFIs, Submittals, Claims & Schedule.
• Prepare Payment Volume Calculations, Design Changes & Weekly/Monthly Reports.

CLIENT:

U.S. Army Corps of Engineers 
Los Angeles District
Survey Branch
645 North Durfee Avenue El Monte, CA 91733