OG&E Woodward to Centennial 138-kV Line
Location: Woodward, Okla.
Client: Oklahoma Gas & Electric
Completion Date: Sept. 7, 2006
The Oklahoma Gas & Electric (OG&E) Woodward District to Centennial project consists of approximately 35 miles of new 138-kV transmission in Woodward and Harper counties of Oklahoma. The project is a result of a new 120-megawatt wind farm installation requiring the transmission line design and construction be completed within eight months of inception.
The project scope incorporates routing, permitting, right-of-way acquisition, engineering design and construction support. In February 2006 design efforts began with a firm deadline set for early fall. Construction was completed September 7, 2006, four days before the Woodward District and Centennial substations came online.
- Construction support
In January 2006, OG&E was approached by an independent wind farm developer with the opportunity to acquire a 120-megawatt, 80-turbine wind farm. Along with the advantage of a clean, sustainable energy source, green energy carries tax and public relations incentives. The requirements of the project are to route, acquire right-of-way, permit, design and construct a 35-mile, 138-kV transmission line within eight months to connect the new wind farm to OG&E’s power grid in northwestern Oklahoma.
OG&E completed preliminary routing work in-house but soon approached Burns & McDonnell to help finalize the route selection. Whenever possible, road right-of-way is utilized to minimize the amount of private easements required. Local, state and federal government agencies were involved in the routing and permitting process to ensure a mutual consensus on the final route selection.
On this fast-track project, engineering design faced multiple challenges that involved creative solutions to maintain schedule. To meet the target completion date, engineering and construction progressed concurrently. During construction, underground obstructions were a major concern. Preliminary survey identified many of the underground utilities in the vicinity of the proposed transmission line. Adjustments were made to the alignment to avoid utilities and satisfy land owner requests where possible. Design was continuously changing to keep the project moving forward. All major issues were resolved quickly and effectively through seamless coordination between all parties involved resulting in a successful and on-time project completion.
- 36-strand fiber optic overhead ground wire
- ACSR 477 “Hawk” conductor
- No condemnations, no oppositions