Siegfried Engineering

The History of Siegfried

Founded in 1955 by Robert W. Siegfried, Siegfried is the largest engineering firm based in San Joaquin County that provides professional services in civil engineering, structural engineering, land surveying and planning. The firm is currently headed by Lex A. Corrales, President, and Vice Presidents Anthony J. Lopes and Paul J. Schneider. We have grown to an experienced and valuable staff of more than 26 employees over the last 54 successful years.

The technical contributions of a firm such as Siegfried to the growth and development of a city is not easily apparent or understood by the public. However, over the past 54 years, the company's engineering projects have significantly contributed to the changing face of the Stockton vicinity and beyond.

1950s 1960s 1970s 1980s 1990s 2000s
  • 1955 - Robert W. Siegfried founds R.W. Siegfried & Associates.
  • Late 1950s - Siegfried begins 45-year tenure as city engineer for the City of Ripon, CA.
  • 1960s - Siegfried begins engineering work for Lincoln Village West.
  • 1960s - Siegfried acts as reclamation district engineer for community levees.
  • 1966 - Siegfried purchases headquarters at 4045 Coronado Avenue, Stockton. Subsequent additions would eventually almost triple the building size.
  • 1966 - The firm now employs 23 staff members.
  • 1970s - In a cooperative effort, Siegfried works with Stockton Redevelopment Agency to develop the Stockton south channel bank, north banks and other seawall and promenade projects.
  • 1980s & 1990s - The firm engineers Brookside, a cutting edge golf course and water-oriented community. Siegfried remains the reclamation district engineer for the project levees.
  • 1980s & 1990s - The firm engineers Brookside, a cutting edge golf course and water-oriented community. Siegfried remains the reclamation district engineer for the project levees.
  • 1992 - Robert Siegfried retires, and the firm is renamed Siegfried Engineering, Inc. Siegfried invests in new technologies including computer-assisted design.
  • 2000s - The firm is contracted as civil engineer for De Carli Square seawall, plaza, and cineplex and Hotel Stockton plaza, events center, The Record expansion, transit center and county WorkNet complex.
  • 2005 - Siegfried celebrates its 50th anniversary. Mayor Edward Chavez proclaims the firm a defining factor in the growth of Stockton and San Joaquin County.
  • 2009 - Siegfried moves its corporate office after 41 years.
Click on a decade to learn about Siegfried's history.

In the 1960's, Siegfried was the engineer for the West End Redevelopment Projects in downtown Stockton including:

  • Demolition of Downtown City Blocks for Redevelopment
  • Downtown Pedestrian Malls
  • Hunter Square Plaza
  • Lee Center
  • Bank of America
  • Central District Parking Lots

In the 1970's and 1980's, Siegfried was the engineer for the Waterfront project in a cooperative effort between the Redevelopment Agency and a private developer including:

  • Warehouse and Office Towers
  • Delta Gateway Apartments
  • Waterfront Infrastructure Improvements

Recently, Siegfried was the civil engineer for:

  • Seawall and Promenade for the Stockton Channel South Bank and North Banks
  • DeCarli Square Seawall and Plaza
  • Cineplex and Hotel Stockton Plaza
  • Stockton Events Center including Baseball Park Arena, and Hotel
  • Rio Vista Waterfront
  • San Ramon Valley Fire Station #31
  • Palo Alto Emergency Well Project

Our high profile engineering projects have included the prestigious master planned residential developments in Stockton such as Lincoln Village West, Quail Lakes, Venetian Gardens, Venetian Bridges, and Brookside Estates. For these communities, Siegfried was recognized for its innovative engineering design of storm water retention basins being also useable as architectural and recreational features, equalization storage of wastewater for disposal during low peak flows, and rehabilitation and reinforcement of existing levees and the creation of high ground for flood protection from the 100-year flood event for urban developments in Stockton.

Siegfried celebrated its Golden Anniversary on April 20, 2005. A gala event was held on the Roof Garden of the newly restored historical landmark, the Hotel Stockton. We received media coverage the same year in Stockton's newspaper The Record. View the article (pdf).

Siegfried continues to grow and change, constantly contributing to the successes of clients and the community.