The state Division of Highways is planning a $35 million overhaul of its Region 1 campus along Smith Street in Charleston. Some buildings will be renovated, while others will be demolished entirely and replaced with new construction and additional parking.

Highways officials plan to tear down what they call the Summers warehouse building, left, which they bought last year. And once they build a new headquarters they'll demolish the yellow 1970s-era headquarters.

The DOH Ruffner Building (right) would be demolished and replaced with a multipurpose shop in a later a phase of the District 1 campus overhaul. In planned Streetscape project, all utility lines will be buried underground.

The state Division of Highways plans to tear down the former Smith Street Fas-Chek, which it bought last year, and build a new shop in its place, as part of a $35 million to $37 million overhaul of its District 1 headquarters.