Transmission, Substation & Distribution Services

Location: Washington

Client: Grant County Public Utility District

Completion Date: June 1998 through December 2007, renewed every three years

Burns & McDonnell is currently providing transmission, substation, distribution and planning services for Grant County Public Utility District (PUD), including a new 230-kV substation and transmission design, distribution upgrade projects, communications and fiber-optic projects. This is a continuing-services contract agreement. Current projects include numerous distribution line upgrades and substation get-away projects.

  • Engineering design
  • Permitting and easements
  • Detailing and mapping
  • Survey and staking

A recent substation project was the design of a new 230-kV 5-position breaker-and-a-half switching station at the Pries Rapids Dam. This included design for a two-phase construction effort to minimize outage time structure and foundation design, relay protection modifications and upgrade material specifications and construction specifications. Design was essentially complete when the project was cancelled.

Recent distribution projects have been designed for rural, urban, retail/commercial and airport applications.  Projects have included overhead and underground feeder upgrades, new builds, overhead to underground conversions and substation get-aways. Project responsibilities include loading studies for underbuild on transmission lines, distribution line design, field surveying, and field staking for construction and permitting for powerline crossings. Permit applications have included Bonneville Power Administration, Avista Power, Columbia Basin irrigation districts, U.S. Bureau of Reclamation, city and county road departments, Department of Transportation and other state and federal agencies. Burns & McDonnell also provides work order packages, including AutoCAD drawings and summary of material units.

Recent fiber optic projects have been designed for rural and urban applications. Projects include overhead and underground backbone and hub build-outs. Project responsibilities include structure analysis studies for underbuild on transmission and distribution lines, field surveying, and field staking for construction and permitting for fiber optic crossings. Permit applications have included Bonneville Power Administration, Avista Power, U.S. Bureau of Reclamation, city and county road departments, Department of Transportation and other state and federal agencies. Burns & McDonnell provides work order packages, including AutoCAD drawings and summary of material units.