Virginia Electric and Power (Dominion Energy Virginia), in an Oct. 6 motion filed with the Virginia State Corporation Commission (SCC), requested that the SCC extend to May 31, 2018, the date for placing and energizing the in-service facilities included as part of a 230-kV double circuit transmission project previously approved by the SCC.
As noted in the motion, the SCC in September 2016 issued its final order approving the construction and operation of the company’s proposed transmission line rebuild, entirely within existing right of way (ROW), of about 2.6 miles of existing 230-kV double circuit transmission lines known as Line #204 (Jefferson Street-Gum Springs) and Line #220 (Ox-Gum Springs), which are located entirely within Fairfax County, Va.
The order called for the project to be built and in service by Dec. 1, 2017; however, the company was granted leave to apply for an extension for good cause shown.
The company added that in its application, it stated that the project, as proposed, would have taken seven months to build and energize following SCC approval. As detailed in the final order, however, through a stipulation among the parties that the SCC approved, the scope of the project was changed to include, not only additional structures at lower heights, but also a number of conservation, mitigation/avoidance, and monitoring activities. A hearing examiner found, and the SCC agreed, that the revised project would take eight months to build, the company added.
Following the SCC’s issuance of the final order, the company pursued obtaining the necessary permits for the project, procuring the construction materials, completing engineering, and taking the steps necessary to complete and comply with the additional required conservation, mitigation/avoidance, and monitoring activities.
The company added that with respect to those activities, beyond using the stipulated 100-foot transmission line structures, it is using leak-proof matting under its concrete washout pit to prevent concrete residue from leaching into the soil or surface to subsurface water.
The company noted that it prepared a detailed analysis of historic resources, including George Washington boundary ditches, in the easement as described in the stipulation, for use in matting and pole placement locations, which was required to be completed before work along 2,500 feet of the project.
Furthermore, the company said that it worked with the Fairfax County Parks Authority and Friends of Huntley Meadows Park to develop procedures to evaluate the causation of bird fatalities near the project to determine if the installation of bird-diverters would be necessary.
Among other things, the company said that after obtaining all necessary permits, and otherwise performing the noted work/activities, it was able to begin construction in August. In light of the additional care needed to ensure that the company performs its work in a manner consistent with the conservation, mitigation/avoidance, and monitoring activities, as well as certain work days and hours limitations, and based on its construction experience, the company said that it believes that it will take six additional months beyond the current completion date of Dec. 1, 2017, to complete and energize the project.