Relief is on the way for a six-mile segment of Colorado’s notoriously congested I-70 Mountain Corridor, beginning with a $31-million design engineering contract awarded to Atkins.

Southeast firms are positive about future opportunities, but fears over inflation and continuing supply-chain disruptions remain.

Photographs chosen by our editors from submissions to ENR.com/mountainstates/photos.

City plans to invest more than $30 million to upgrade infrastructure in portions of its 26.2-mile system, and is considering other projects laid out in a new $4B, 25-year transit improvement program.

The $2.3 billion Green Line Extension is trundling towards completion, with the first station in the long-awaited project set to open this fall in Somerville.

Historic buildings, ferry traffic and fish migration patterns impose strict limits by land and sea for San Francisco’s ferry terminal expansion

Buoyed by the FAST Act, infrastructure projects move steadily forward in 2016.