About Us

KSN has an excellent rapport with the engineering departments of the local utilities and public agencies, and is well respected both locally, and in Sacramento, for its ability to work through difficult regulatory issues with the various State and Federal permitting agencies, including the US Army Corps of Engineers, the National Marine Fisheries Service, the Central Valley Flood Control Board, the State Water Resources Control Board, the California Department of Public Health, the Federal Emergency Management Agency, and the California Department of Water Resources.

 

In addition to our private sector clients, KSN currently serves as consultants to over three dozen communities, special districts, and local public agencies in the Central Valley and Sierra Nevada foothills.

Project Awards

American Council of Engineering Companies of California
2017 Engineering Excellence Honor Award
2017 Engineering Excellence Commendation Award
2011 Engineering Excellence Merit Award - Surveying and Mapping Category
2010 Engineering Excellence Merit Award - Design/Build Category
2009 Engineering Excellence Honor Award – Surveying and Mapping Category
2009 Engineering Excellence Merit Award – Surveying and Mapping Category


San Jose – Santa Clara Regional Wastewater Facility

The project includes design modifications to four of the existing anaerobic digesters, replacement of the digester gas pipeline and upgrades to the dissolved air flotation thickeners.

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Mid and Upper Sacramento River Regional Flood Emergency Response Project

KSN prioritized the needs of local levee maintaining agencies in the counties of Butte, Colusa, Glenn, Sutter, Tehama, and Yolo and focused efforts on implementing a regionally coordinated approach to flood emergency response.

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San Joaquin County Flood Contingency Mapping FEMA Pilot Project

KSN contracted with San Joaquin County Office of Emergency Services to provide civil engineering, surveying, and mapping services for the San Joaquin County Flood Contingency Mapping FEMA Pilot Project.

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Downtown Stockton Marina and Joan Darrah Promenade

The centerpiece of Stockton’s vision of turning the waterfront area into a destination for recreation, community events, and residential and commercial opportunities.

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Influent Pipe Replacement Project

KSN was retained by Power Engineering Contractors Inc. to provide surveying and mapping services for the emergency replacement of four 36” raw sewage pump discharge pipes at the City of Stockton Regional Wastewater Control Facility.

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Interstate 5/French Camp Road Interchange Improvement Project

KSN was retained by Power Engineering Contractors Inc. to provide surveying and mapping services for the emergency replacement of four 36” raw sewage pump discharge pipes at the City of Stockton Regional Wastewater Control Facility.

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American Council of Engineering Companies of California Sierra Chapter
2016 Engineering Excellence Award – Best Flood Control Project
2015 Engineering Excellence Award – Outstanding Application of Technology – Third Place


Mid and Upper Sacramento River Regional Flood Emergency Response Project

KSN prioritized the needs of local levee maintaining agencies in the counties of Butte, Colusa, Glenn, Sutter, Tehama, and Yolo and focused efforts on implementing a regionally coordinated approach to flood emergency response.

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San Jose – Santa Clara Regional Wastewater Facility

The project includes design modifications to four of the existing anaerobic digesters, replacement of the digester gas pipeline and upgrades to the dissolved air flotation thickeners.

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American Public Works Association Sacramento Chapter
2023 National Co-Winner Environmental Project of the Year ($5-25M)
2023 Northern California Chapter's Project of the Year
2023 Northern California Chapter's Environmental Project of the Year
2009 Project of the Year Award – Parks and Trails Category


Lower Walnut Creek Restoration Project

KSN provided Construction Management Services for the Lower Walnut Creek Restoration Project. The project included construction of new tidal channels, grading of upland areas, endangered species and rare plant monitoring and protections and temporary access bridge construction.

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Lower Walnut Creek Restoration Project

KSN provided Construction Management Services for the Lower Walnut Creek Restoration Project. The project included construction of new tidal channels, grading of upland areas, endangered species and rare plant monitoring and protections and temporary access bridge construction.

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Lower Walnut Creek Restoration Project

KSN provided Construction Management Services for the Lower Walnut Creek Restoration Project. The project included construction of new tidal channels, grading of upland areas, endangered species and rare plant monitoring and protections and temporary access bridge construction.

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Airport Way Beautification – City of Stockton Department of Public Works

Airport Way is a major gateway corridor within the City of Stockton and is in need of infrastructure improvements and services to accommodate the continuing growth in the project area.

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American Society of Civil Engineers - Sacramento Section
2016 Outstanding Construction Project of the Year
2016 Outstanding Public Safety Project of the Year


Tyler Island Emergency Levee Repair

Seepage through the levee foundation and lower levee slope due to high river flows caused by 2017 high water and winter storms in the Sacramento-San Joaquin Delta region led to a landside levee slope failure on Tyler Island on February 13, 2017.

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Mid and Upper Sacramento River Regional Flood Emergency Response Project

KSN prioritized the needs of local levee maintaining agencies in the counties of Butte, Colusa, Glenn, Sutter, Tehama, and Yolo and focused efforts on implementing a regionally coordinated approach to flood emergency response.

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Consulting Engineers and Land Surveyors of California
2008 Engineering Excellence Merit Award – Water and Wastewater Category
2005 Engineering Excellence Merit Award – Surveying and Mapping Category


Peters Pipeline Project – Stockton East Water District

Designed and constructed 33,000 linear feet of 60-inch diameter reinforced concrete raw water pipeline from Mosher Slough, east of the town of Peters, to the Stockton East Water District (SEWD) Water Treatment Plant Site.

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Spooner Summit Pipeline

The Spooner Summit Pipeline Project consists of investigation and repair of three segments to the Incline Village General Improvement District’s 20-mile long secondary effluent export pipeline.

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Workplace Awards

Civil Engineering News Best Firms to Work For

2016 – Fourth place nationally out of all firms competing

2015 – Tenth place nationally out of all firms competing

2013 – Eighth place nationally out of all firms competing

2012 – Third place nationally out of all firms competing

2011 – Top 22 Overall Firms to Work For and 15th place nationally out of all firms competing

2010 – Top 20 Overall Firms to Work For and 12th place nationally out of all firms competing (Small Firms ranking limited to Top 3 Small Firms starting in 2010)

2009 – Best Recruiting and Retention Program, 1st place nationally out of all firms competing, Top 10 Small Firms to Work For, and 6th place nationally out of all small firms competing, Top 25 Overall Firms to Work For, 15th place nationally out of all firms competing

2008 – Best Recruiting and Retention Program, 1st place nationally out of all firms competing, Top 10 Small Firms to Work For, 8th place nationally out of all small firms competing, Top 25 Overall Firms to Work For, 11th place nationally out of all firms competing

What our clients say about us

We at Kjeldsen, Sinnock & Neudeck Inc. pride ourselves on our work and our working relationships. Below are some commendations clients have sent either to us or to others on our behalf. 

  • Over the past 15 years KSN and the department of water resources have had an exceptional relationship. From the first efforts to implement projects on Twitchell Island I have appreciated the professionalism and insight that your firm has brought to its work and to the Delta. KSN staff are instrumental in providing guidance to department staff on the wise management of funds for Delta levees. KSN operates with integrity, and with a keen understanding of the public interest.

    DAVE MRAZ
    Department of Water Resources
  • KSN performed the 3D scanning expertly and efficiently….
    KSN has proven to be a valuable partner and a key component of ‘smart design’ processes

    ADAM ROSS
    Brown and Caldwell
  • I have been impressed with KSN’s customer service, accessibility, responsiveness, professionalism, quality of plans, and timely completion of deliverables for Phase 2. KSN Rocks!!!

    ALEX MENOR
    City of Stockton Public Works Department
  • KSN’s staff met the challenges of the aggressive schedule and delivered all of their services on time and within budget… The professional services and mapping provided by KSN throughout the project duration are a key factor in the overall success of the project.

    JOHN A. KLEMUNES, JR.
    HDR Engineering, Inc.
  • KSN was faced with many challenges during the project, including change of scope throughout the predesign phase, mapping across difficult terrain and varying topography, inconsistent coordinate systems provided on previous projects, and critical deadlines… KSN exceeded HDR’s expectations by making available the appropriate staff to complete the aerial based topography and digital photography ahead of schedule and under budget.

    JAMES A. YURCZYK
    HDR Engineering, Inc.