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Council upholds zoning examiner on Vine substation but asks for citywide undergrounding policy
Summary
After a lengthy, heated public hearing, Tucson’s mayor and council denied an appeal by undergrounding advocates and upheld the zoning examiner’s approval of Tucson Electric Power’s Vine substation special exception. Council also voted to direct staff to draft a citywide undergrounding policy to guide future decisions.
A contested appeal over Tucson Electric Power’s proposed Vine substation and associated transmission routing dominated the June 9 meeting, drawing large public turnout and hours of testimony.
Neighborhood groups and Underground Arizona urged the council to condition the substation approval on undergrounding nearby new transmission lines within the University Area Plan boundary, saying above‑ground 95‑foot poles would harm neighborhood character, economic development potential and public viewsheds. TEP argued the transmission route and related questions had been decided through state line‑siting proceedings and earlier city gateway‑corridor special exception processes, and told council the substation land‑use review should be limited to parcel‑level impacts.
After a two‑hour public hearing that included technical testimony from the zoning examiner and multiple neighborhood representatives, council members debated legal risk and policy precedent. Several members said they were concerned about litigation risk from conditioning the special exception because of possible conflicts between area plans and adopted land‑use code provisions. Others said a precedent allowing large new overhead transmission through denser neighborhoods would undercut city goals for infill and quality of place.
Council split the difference: it denied the appeal (upheld the zoning examiner) but passed a substitute motion directing staff to develop a citywide undergrounding policy. The outcome keeps the examiner’s parcel‑level approval in place, while asking the administration to prepare policy proposals for future consideration.
What’s next: Staff will prepare a proposal and timeline for a citywide undergrounding policy, including options for when and where the city will require new transmission or distribution lines to be placed underground and how the city will handle funding and franchise issues. The council’s decision came amid warnings from staff about potential litigation risks on both sides of the issue.
