Work includes two tunnels, approx. 11,600 ft and 20,100 ft long, piping, approx. 3,400 lin, ft. influent sewer (microtunnel and open cut) 36 to 48 ID, portal structures at North Kenmore and Ballinger Way portal sites.
Project Name: North Kenmore Portal
Location: Kenmore, Wash.
Total Construction Cost: $211 million
Contractors: Vinci Parsons Frontier Kemper.