Civil Engineering - Siegfried Engineering

Siegfried has been shaping communities across Northern and Central California for decades. We understand the challenges our clients face and work together with architects, design-build teams, and public and private entities to create thoughtful, efficient solutions. Whether it’s site development, infrastructure improvements, or complex engineering challenges, we bring experience and creativity to every project.

UC Davis Health, 48X Complex

ESUHSD Piedmont Hills Performing Arts Classroom

EVC Language Arts Building

San Carlos Fire Station No. 16

Front of the Casa Roble High School Student Union and Administration Building at dusk.

Casa Roble High School, Student Union & Admin Building

Mountain View Community Center

University of the Pacific, William Knox Holt Memorial Library Plaza

Two people standing under a blue awning on the UC Davis Health sports court.

UC Davis Health, Modular Sports Court

UC Davis, Wyatt Deck & Pathways

UC Davis, Coffee Center

City of El Cerrito Arlington Park Improvement Project

City of Stockton, Alexandria & Five Mile Slough Culvert Replacement

City of Stockton, City Hall Relocation

San Jose City College, Career Technical Education Complex

City of Stockton, California Street Road Diet, Phase I

ADA compliant railway crossing. Active railroad crossing guard with lights in front of train tracks.

City of Stockton, Hazelton & Industrial Rail Crossing

City of Los Altos, Covington Road

CSU, Sacramento University Union

City of Palo Alto, Fire Station No. 3

Alpine Climbing Adventure Fitness

Rendering of Tahoe Hospital District's Levon Parking Structure. Sidewalk lined with landscaping leading to the parking structure.

Tahoe Forest Hospital District, Levon Parking Structure

UC Davis Health, Ernest E. Tschannen Eye Institute

Siegfried-Engineering-Civil-Structural-Surveying-Miners-Avenue-Stockton-Bay-Area-Sacramento-San Jose-modesto

City of Stockton, Miner Avenue Complete Streets

San Joaquin County, Public Health Services Facility

Northeast Stockton Library & Recreation Center

University of the Pacific

City of Stockton, Don-Thornton Sanitary Pump Station Rehabilitation

Reclamation District No. 1608

Reclamation District No. 2074

UC Davis, Veterinary Medicine Administration Building

City of Oakley, Oakley Fire Station No. 55

City of Stockton Soccer Complex view of the field, kid playing with soccer ball near coach or parent.

Stockton Soccer Complex

Town of San Anselmo, Low Impact Development (LID)

UC Davis, Cruess Hall Renovation Project

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

Lathrop Gateway

UC Davis, Aquatics & Recreation Pool Renovation

Niagara Bottling Plant & Arch Road Manufacturing Facility

Santa-Clara-Valley-Water-District-Coyote-Pumping-Station-Landscape-Architect

SCVWD, Coyote Pumping Station Warehouse

Placer County, Auburn Library Renovation

El Camino Fundamental High – Center for Performing Arts

City of Tracy, Tracy Animal Shelter

UC Davis Health, Medical Center Roseville

San Anselmo Median Master Plan & Red Hill Avenue Improvements

SJECCD, Evergreen Valley College, Fire Lane

SJECCD, Evergreen Valley College, General Education Building

SJECCD, Evergreen Valley College, Entry Road & Parking Lot

Sacramento State Hornet’s Stadium Artificial Turf Replacement Design Services

City of Stockton, Fremont Square Park

Vibra Healthcare, University Park Rehabilitation Hospital, Stockton

Vibra Healthcare, Acute Rehabilitation Hospital, Natomas

UC Davis Health, California Tower

City of Stockton, Main Street Complete Streets

City of Stockton, Northeast Stockton New Library & Recreation Center

Manteca Public Works Administration Building

CDCR, California Healthcare Facility

San Joaquin General Hospital, Acute Care Wing

UC Davis, Arboretum Waterway & Pathway Improvements

UC Davis, Mary Wattis Brown Pathway Improvements

City of Milpitas, Milpitas Fire Station No. 2

East Contra Costa Fire Protection District, Fire Station No. 93, Oakley, CA

University of the Pacific, Calaveras Hall

Stanislaus County, Measure L Sidewalk Projects

CSU Sacramento Parking Structure 5 & Welcome Center

City of Folsom, Econome Family Park

FAX Manchester Transit Center Remodel, Fresno

Encompass Health Rehabilitation Hospital of Modesto

CHP Area Office & Dispatch Center Replacement Facility

ESUHSD, Yerba Buena HS Student Union & Quad Transformation

San Pablo Women, Infants, and Children Building

CSU, Sacramento, Baseball & Softball Field Renovations

UC Davis, Tercero 4 Student Housing

WelbeHealth, University Park Parking Lot and MOB

City park engineering design planning northern california

UC Santa Cruz, Upper Quarry Amphitheater Renovation

City of Stockton, Pixie Woods Playground

Sutter Roseville, Parking Structure, Building 12

Sutter Health, Sutter Cancer Center, Building #8

City of Palo Alto, Bowden Park

Hayward APP Jet Center

Rush Creek Lodge

Dameron Hospital Central Utility Plant

UC Merced, Central Utility Plant Improvements

City of Stockton, Swain Road and Montauban Avenue Roundabout

UC Davis, Putah Creek Parking Lot & Garrod Drive Extension

Palo Alto, El Camino Park

Los Prados Park, San Mateo

Riverbank High School, Track Renovation Project

San Jose Civil Engineer firm

Stockton Heat Ice Arena and Waterfront Hotel

California Health Care Facility, Stockton

Morning Star Tomato Processing Plant, Los Banos and Williams

City of Stockton, El Dorado Street Improvements

Dragoon Gulch Trail Master Plan, Sonora

Olive Garden Italian Restaurant, Stockton

Northern California Civic Engineering

Stockton Cineplex

St. Joseph’s Women’s and Children’s Center, Stockton

St. Joseph’s Women’s and Children’s Center, Stockton

Universal Services Recycling, Stockton

Grand Avenue Bridge, San Rafael

Brookside Estates, Stockton

InShape Healthclubs

Stockton Ports Banner Island Baseball Stadium

Sutter Gould Stockton

Sutter Home Winery, Lodi

San Joaquin Regional Transit District (RTD) Bus Rapid Transit I

City of Roseville, Robert Mahan Neighborhood Mahan Park

Quail Lakes

Lawrence Berkeley National Labs Guest House

DeCarli Square

Folsom Lake Community College Gymnasium

Dameron Hospital Tower Addition

Kyoho Machine Works, Stockton

Downtown Stockton Corridor

March Lane Educational Gardens and Trail

Terrace Oaks

Stockton Neighborhood Services Center

San Joaquin Delta Community College, Gateway Building

O’Connor Woods Memory Care Facility

Stockton Airport Gateway

San Joaquin RTD Downtown Transit Center

The Sanctuary

Valley First Credit Union

Stockton Historic Hotel

Winton Elementary School

John Muir Municipal Building

ECS Refining

San Joaquin Regional Transit District (RTD) Bus Rapid Transit III

Rio Vista Waterfront Park

Elephant Bar

Stockton Department of Motor Vehicles

San Joaquin Regional Transit District (RTD) Bus Rapid Transit II

Retail Design Engineering Planning Surveying Northern California

Bank of the West

Palo Alto Household Recycling Center

Merlo High Joint Use Gym

Napa Hospice

Pixley Slough Bridge

Cesar Chavez Library

Walton Special School

Sutter Gould Modesto

City of Stockton, Fremont Street Corridor

Eleanor Pardee Park

Northern California Car Dealerships

UC Merced, North Bowl Parking Lots and Pathways

Catholic Healthcare West Stockton Clinic

City of Stockton, Weber Avenue

Roseville Harry Crabb Park, Phase II

Mountain House Business Park

UC Davis, Tercero III Demolition and Abatement

Brentwood Eskaton Assisted Living Facility

San Joaquin Delta Community College, Burke Bradley Drive

UC Davis, Giedt Pathway and Bioletti Turning Circle

UC Merced, Academic Office Annex

Altamont Corridor Express Platform

San Joaquin Regional Transit District (RTD) Fuel Station

Los Altos Portola Avenue Sidewalk and Drainage Improvements

University of the Pacific, Sand Volleyball Courts

City of El Cerrito, Castro Park

Markets

Siegfried’s civil engineering expertise extends across a wide range of industries and project types, giving us the versatility to meet diverse client needs. Our team brings technical precision, innovative design, and a solutions-focused approach to every market we serve—delivering functional, compliant, and visually appealing results that stand the test of time.

Commercial

Cultural

Entertainment

Government

Institutional

Higher Education

Hospitality

Healthcare

Mixed-use/Retail

Parking Structures

Public Assembly

Manufacturing

Transportation

Public Works