History

KJ is proud of our 100-year history as an employee–owned firm with nearly 400 staff, including engineers and scientists across 13 states throughout the country.

Clyde C. Kennedy opens an engineering office in San Francisco, CA

1919

Clyde Kennedy designs first sewage treatment plants for Reno/Sparks

1927 - 1929

Harry Jenks piloting biofilterization

1927

John Jenks joins father, Harry N. Jenks, who previously worked for Clyde Kennedy, to form Jenks and Jenks Consulting

1948

Harry Jenks designs secondary treatment plant for Sanitary District No. 1 in Marin County

1948 - 1953

Construction of sewage treatment works, Phoenix AZ

1950

Winter Olympics – Squaw Valley Project

1960

Chambers Creek Regional Wastewater Treatment Plant Expansion, Pierce County, WA

1970

KJ Expands to Hawaii - Honolulu, HI

1973

Kennedy Engineers and Jenks & Harrison collaborated on the EBDA Project. The success of this Project led to the merger of the two firms to become KJ

1980

KJ Expands in Oregon - Portland, OR

1990

Advanced Fuels Receiving Facility, Encina Wastewater Authority, CA

2000

KJ Expands to East Coast – Chicago, IL, Princeton, NJ

2014

KJ Turns 100

2019

Services we offer

News & Insights

KJ’s Tualatin Interceptor and Siphon Improvements Project Wins Oregon Chapter APWA Award – ‘2020 Project of the Year’

State of California Energy Commission Publishes Project Report Authored by Kennedy Jenks

History

Services we offer

News & Insights

KJ’s Tualatin Interceptor and Siphon Improvements Project Wins Oregon Chapter APWA Award – ‘2020 Project of the Year’

State of California Energy Commission Publishes Project Report Authored by Kennedy Jenks

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