This paper will outline a number of strategic considerations when planning the development of a major high-voltage transmission line, based extensively on the author's recent experience leading the construction of a $2.5+B CDN transmission project in Canada. Through a sharing of lessons learned and best practices, the author will provide key insights for use in planning future transmission lines or other linear projects (e.g. pipelines).

Specific areas of focus within the paper will include (i) project delivery options and approaches, (ii) cost and schedule development management, (iii) risk and uncertainty management, (iv) interface management, and (v) claims avoidance.

Additionally, this paper will provide key insights to support the establishment of industry-standard cost estimating guidelines for high-voltage transmission lines.