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Project Highlights:

  • New 2.5-mile, 6-inch diameter gas main
  • Will serve thousands of acres of developable land
  • Included siting for a pressure station
  • Designed in coordination with construction of a new arterial street
Southridge High Pressure Gas-Main

Project Summary

Client: Cascade Natural Gas
Location: Kennewick, WA
Services Provided:
  • Civil Engineering
  • Land Surveying
When looking to augment their internal design staff, Cascade Natural Gas turned to MacKay Sposito to design an important new distribution connection in the Southridge Area of Kennewick, WA.
The new 2.5-mile, 6-inch diameter high pressure steel gas pipe will service thousands of acres of new residential, commercial, and industrial lands and will be an important economic driver in the region.
Our team coordinated the project design with the construction of a major new arterial.  The design included crossings, the detailing of connection points, and a pressure station siting.  Our design and land surveying team also provided a full topographic survey, design basemap, gas pipeline design and specifications, construction drawings, and construction cost estimates.