Civil Engineering

Siegfried is one of the leading civil engineering firms in California, with successful projects in the Bay Area, Sacramento, and Central Valley. Our firm has a reputation as a problem-solver, and we understand the unique needs that face our clients. Our ability to work closely with architects, design-build firms, public entities, and private developers allows us to produce solutions to any civil engineering challenge. When you work with Siegfried, you get an experienced firm that provides:

  • Knowledge and understanding of agency codes, including city, county, state, and federal requirements.
  • Open communication from design to construction.
  • Problem solving and designs that will achieve your goals.

From projects small to large, Siegfried is a firm that can help you build your project!

Paul J. Schneider
President & Managing Principal

Paul is recognized throughout the engineering community for his comprehensive knowledge, technical skills, and his ability to manage major development projects and a wide variety of Public Projects. His expertise is showcased in his strong ability to direct Siegfried’s major projects, beginning with conceptual master planning, and continuing through the design of site infrastructure and improvement plans.

As President and Principal of Siegfried, Paul is held in high regard for his strong ability to solve complex engineering and construction problems and finish projects on time and on budget.


BS Civil Engineering
University of the Pacific, Stockton, CA
BA Liberal Arts
Saint Mary’s College of California, Moraga, CA


California Civil Engineer No. 62498
Qualified SWPPP Developer No. 575
Qualified SWPPP Provider No. 575


American Society of Civil Engineers

Paul’s Featured Projects

UC Davis Health, California TowerDavis, CA

UC Davis Health, Parking Structure 4Davis, CA

UC Davis Health, Sacramento (48x) Ambulatory Surgery Center - Sacramento, CA

UC Davis Health, Parking Structure 4 - Sacramento, CA

UC Davis Health, Parking Structure 5 - Sacramento, CA

California Department of Corrections & Rehabilitation, California Healthcare Facility - Stockton, CA

San Joaquin General Hospital, Acute Care Wing - French Camp, CA

UC Davis, International Center - Davis, CA

Evergreen Valley Community College, Language Arts Building - San Jose, CA

California State University, Sacramento University Union - Sacramento, CA

UC Davis, Student Community Center - Davis, CA

Evergreen Valley Community College, General Education Building - San Jose, CA

San Jose City College, Career Technical Education Complex - San Jose, CA

San Jose Evergreen Community College District, Evergreen Valley College, Fire Lane - San Jose, CA

San Jose Evergreen Community College District, Evergreen Valley College, Entry Road & Parking Lot - San Jose, CA

UC Merced, North Bowl Parking Lots and Pathways - Merced, CA

San Joaquin Delta Community College, Burke Bradley Drive - Stockton, CA

Folsom Lake Community College Gymnasium - Folsom, CA

San Jose Evergreen Community College District, Evergreen Valley College, Language Arts BuildingSan Jose, CA

UC Santa Cruz, Upper Quarry Amphitheater RenovationSanta Cruz, CA

UC Davis, Aquatics & Recreational Pool RenovationDavis, CA

San Jose Evergreen Community College District, Entry Road & Parking LotSan Jose, CA

Yerba Buena High School, Student Union & Quad TransformationSan Jose, CA

East Side Union High School District, William Overfelt High School Music, Art, and Administration Building & Quad ModernizationSan Jose, CA

El Camino Fundamental High, Center for Performing ArtsSacramento, CA

Casa Roble High School, Student Union & Career Technical Education Building – Orangevale, CA

City of Stockton, Miner Avenue Complete StreetsStockton, CA

City of Stockton, California Street Road DietStockton, CA

City of Stockton, Main Street Complete StreetsStockton, CA

UC Davis, Arboretum Phase IDavis, CA

UC Davis, Arboretum West End – Davis, CA

City of Palo Alto, El Camino ParkPalo Alto, CA

City of Roseville, Harry Crabb Park Phase IIRoseville, CA

City of Sacramento, Robertson Park & Community Center – Sacramento, CA

City of Stockton, Airport GatewayStockton, CA

City of Lathrop, Lathrop GatewayLathrop, CA

Niagara Bottling Plant & Arch Road Manufacturing FacilityStockton, CA

Amazon Fulfillment CenterSacramento, CA

Adam Merrill
Vice President & Principal

Adam is recognized for his technical abilities and broad knowledge when it comes to civil engineering infrastructure projects. His duties include client management, planning, designing, preparing reports, and participating in and directing public outreach efforts to ensure community and project stakeholder consensus.
To ensure project success, Adam carefully considers all existing site conditions and topographical and geologic data. His use of cutting edge technology and design software including the latest in 3D and BIM modeling software allows him to prepare technically accurate design documents for any project he undertakes.


BS Civil Engineering
California Polytechnic State University, San Luis Obispo, CA


California Civil Engineer No. 76826
Qualified SWPPP Developer No. 24851
Qualified SWPPP Provider No. 24851


American Society of Civil Engineers

Adam’s Featured Projects
Sutter Gould, Stockton Medical Office ComplexStockton, CA

Sutter Gould, Medical Office Building & Parking Lot (Coffee Rd. & Lucerne Ave.)Modesto, CA

Sutter Gould, Modesto Medical Office Complex – Modesto, CA

Sutter Gould, Sutter Cancer Center, Building #8Roseville, CA

Sutter Gould, Parking Structure, Building 12Roseville, CA

Vibra Healthcare, University Park Rehabilitation HospitalStockton, CA

Los Banos Unified School District, Pacheco High School Football Field & Practice Fields – Los Banos, CA

Town of San Anselmo, Median Master Plan & Red Hill Avenue ImprovementsSan Anselmo, CA

City of San Rafael, Grand Avenue Bridge & Pedestrian SystemSan Rafael, CA

City of Sunnyvale, Lawrence Station Area Sidewalks & Bike Facilities – Sunnyvale, CA

City of Sunnyvale, East Sunnyvale Area Sense of Place Project – Sunnyvale, CA

City of Sunnyvale, 5 Intersection and Traffic Signal Upgrades – Sunnyvale, CA

City of Sunnyvale, Homestead High School Pedestrian & Bicycle Improvements – Sunnyvale, CA

City of Sunnyvale, Traffic Signal Hardware and Wiring at Hendy and Sunnyvale Avenues – Sunnyvale, CA

City of Sunnyvale, Traffic Signal Reconstruction At Mathilda Avenue & Indio Way – Sunnyvale, CA

City of Sunnyvale, Remington and Bernardo Signal – Sunnyvale, CA


Higher Education
Parking Structures
Public Assembly
Public Works


Public Works

  • Urban Redevelopment
  • Reclamation Districts
  • Underground Infrastructure
  • Pump Stations
  • Parks and Multifunctional Lakes
  • Flood Control Projects
  • Assessment Segregations for Special Districts
  • Engineer’s Reports
  • Peer Review

Hydrology and Hydraulics

  • Water Supply and Distribution
  • Flood Protection
  • Grading and Drainage
  • Storm Water Quality Design
  • Low Impact Design (LID)
  • Hydromodification Design
  • Sewer Collection and Disposal
  • Well Design


  • K-12 Schools
  • Community College
  • Higher Education
  • Private Institutions


  • Streets, Roadways, and Trails
  • Bike Lane Installations
  • Traffic Calming Measures
  • Road Diets
  • Railroad Crossings
  • Safe Routes To School (SRTS)

Commercial and Residential

  • Subdivisions
  • Master Planned Communities
  • Residential Complexes with Recreational Lakes and Golf Courses
  • Office Complexes
  • Industrial Parks
  • Retail Centers
  • Restaurants


  • Fire Stations
  • Correctional Facilities
  • Police Facilities
  • Churches

LEED Sustainable Design

  • Siegfried has had success with Platinum, Silver, and Gold projects seeking LEED certification
Project Delivery Experience

Design-Build (DB)
Design Bid Build (DBB)
Integrated project (IPD)
Public-Private-Partnership (3P)
Construction Manager at Risk (CMAR)