Anchorage-Kenai state highway project more than doubles in cost since 2018

A major highway project improving the connection between Anchorage and the Kenai Peninsula has more than doubled in cost over the past five years — from $350 million in 2018 to the latest estimate of $840 million — and the new pavement is still four years away from opening to the public.

The bypass — officially the Sterling Highway Milepost 45-60 Project — is a decades-old plan to divert traffic around the small Kenai River community of Cooper Landing by creating a 10-mile bypass cut through the forested and sloped terrain north of the town.

Construction includes a 462-foot-long, single-span s...