Real Estate Assessment
Environmental Investigation and Remediation
Munitions and Explosive Services
Geotechnical Engineering
Water Resources
Hazardous Materials Management
Environmental Modeling
Expert Witness and Litigation Support
Exit Strategy and Site Closure







Geotechnical Engineering

Whether through traditional geotechnical engineering design and construction solutions or environmental applications such as slurry walls, soil stabilization and sediment dewatering systems, Northgate's objective is to provide high quality turnkey service. Northgate offers services in the following areas:
  • Slope Stability Analyses
  • Foundation Design
  • Excavation and Shoring Systems
  • Construction Management and Testing
  • Litigation Support and Expert Witness Services

Experience
Northgate's geotechnical and environmental engineering capabilities are brought together to provide high quality engineering services for a broad range of projects. Our team has extensive experience in designing and managing construction programs for both conventional and contaminated sites. Our direct project experience includes:
  • Shopping Centers
  • High-Rise Buildings
  • Residential Development
  • Marinas
  • Wetland Reconstruction, Levees and Dikes
  • Communication Towers
  • Landfill Design and Redevelopment
  • Construction Dewatering
  • Contaminated Soil Management

Case Study

This project involved the redevelopment of a 59-acre site that previously supported a railroad maintenance yard, a service station, a bus and truck repair operation, several warehouse structures, and a construction yard. As part of the development activities, 25,000 cubic yards of soil were excavated and capped onsite in accordance with a regulatory-approved soil containment plan. The project scope consisted of the design and oversight of the geotechnical and environmental aspects of the project, including coordination with the developer's general contractor, several lessees' contractors, several architects, and city agencies. Remedial activities included the construction of a deep groundwater extraction trench and treatment system, and the removal of six underground storage tanks. Geotechnical services included monitoring soil placement and observing and approving all foundation excavations, deep foundation placement, building pad construction, roadway and utility earthwork activities, and the extension of an adjacent city-owned throughway.


Engineering Management at Contaminated Site Regional Shopping Center
Alameda County, CA