Our Services

Our multi-disciplinary teams provide a full array of services for land development and public improvement projects throughout Northern California and the Central Valley.  From entitlements through construction, MacKay & Somps integrates our engineering, planning, and surveying expertise to get projects built.



Infrastructure Master Planning
Sewer Collection Analysis & Design
Potable and Recycled Water Analysis & Design
Drainage/Flood Control Systems Analysis & Design
LID/Water Quality/Hydromod Analysis & Design
FEMA/CLOMR/LOMR Analysis & Applications
Mass Earthwork Analysis & Design
Site & Subdivision Grading Plan Design
Major Roadway & Backbone Infrastructure Design
Improvement Plans & Construction Documents
Construction Cost Estimates & Bid Packages
Public Finance Planning & Engineering
Fit List & Plot Plan Preparation


Master Plan Community Design
Specific Plan Preparation
Design Guideline & Development Standards
Zone Changes & General Plan Amendments
Tentative Mapping
Site Planning; Residential, Commercial & Industrial
Public Space & Park Planning
Constraints Mapping
Development Opportunities Studies
Environmental Analysis Assistance
GIS Database Research, Mapping & Analysis
Digital Graphics, Color Illustrations & 3D Animations


Final Subdivision Maps & Parcel Maps
Condominium Mapping
Construction Surveying & Staking
ALTA Surveys
Aerial Surveys
Topographic Surveys
Unmanned-Aerial Systems (Drone) Imagery, Video and Mapping
Boundary Surveys
Right-of-Way Surveys
Property Descriptions
Easement Descriptions