County staff outline three alternatives, costs for Kimball Junction EIS as UDOT prepares public outreach

Carl Miller, Summit County transportation staff, gave the council a status update on the Kimball Junction environmental impact statement, explaining the EIS screening process and how three alternatives were narrowed for further study.

Miller said the EIS follows a multi‑step screening process that begins with a broad “fatal flaw” analysis and narrows to level‑3 screening (traffic and mobility) and level‑4 screening (environmental impacts, relocations and cost). He told the council that UDOT’s preliminary cost figures put Alternative A — a split‑diamond interchange that routes significant local traffic onto Landmark Drive — at about $90,000,000; Alternative B — a grade‑separated fly‑under that separates regional through traffic from local frontage roads — at about $162,000,000; and Alternative C — a simpler widening and…