About Us

“We are Connolly-Pacific Co.  Through courage, knowledge, enjoyment and commitment we will maintain these ideals now and throughout the twenty-first century.”

Connolly-Pacific Co. (CP) is a vertically integrated rock quarrying and marine construction company. CP is engaged in the business of selling rock products and providing marine construction services in Southern California, primarily from Los Angeles to San Diego.

CP, originally incorporated in 1946, has been in operations since the early 1930’s initially constructing the Los Angeles and Long Beach breakwaters for the U.S. Army Corps of Engineers.

We are a wholly owned subsidiary of Knife River Corporation. Knife River Corporation is a wholly owned indirect subsidiary of MDU Resources Group, Inc. operating the company’s construction materials and mining operations.

MDU Resources

MDU Resources Group, Inc., a member of the S&P MidCap 400 index, provides essential products and services through two lines of business: regulated energy delivery and construction materials and services. For more information about MDU Resources, visit www.mdu.com.

Knife River Corporation mines aggregates and markets crushed stone, sand, gravel and related construction materials, including ready-mixed concrete, cement, asphalt and other value-added products, as well as performs integrated construction services, in the central and western United States, and in Alaska and Hawaii.

Award Winning Work

Connolly-Pacific Co. has been honored with several industry awards over the years. Major awards include:

AGC of California

2003 Constructor Award Finalist Excellence in Project Management
Projects $5 Million or Below Orange County Outfall Re-Ballast Project

2001 Constructor Award Meeting the Challenge of a Difficult Job
Heavy Engineering Pier 400 Constructors, A Joint Venture of Connolly-Pacific Co. and Great Lakes Dredge & Dock Company Pier 400, Stage 2 Channel Deepening and Landfill Project

1998 Constructor Award Meeting the Challenge of a Difficult Job
Heavy Engineering Pier 400 Constructors, A Joint Venture of Connolly-Pacific Co. and Great Lakes Dredge & Dock Company Pier 400 Dredging and Landfill Project

AGC of America

1998 Marvin M Black Excellence in Partnering Award
Pier 400 Constructors, A Joint Venture of Connolly-Pacific Co. and Great Lakes Dredge & Dock Company Pier 400 Dredging and Landfill Project

1997 Build America Merit Award
Pier 400 Constructors, A Joint Venture of Connolly-Pacific Co. and Great Lakes Dredge & Dock Company Pier 400 Dredging and Landfill Project

United States Army Corps of Engineers – South Pacific Division

2000 Contractor of the Year Award
Pier 400 Constructors, A Joint Venture of Great Lakes Dredge & Dock Company and Connolly-Pacific Co. Pier 400, Stage 2 Channel Deepening & Landfill Construction