University Link Tunnel U220 - Seattle, WA

Manufacture and deliver 6,952M of precast, bolted, gasketed tunnel liners.
ID = 5.74M

Owner : Sound Transit

General contractor : Traylor/ Frontier Kemper

Quantity of precast tunnel liner : 20,800 ft x 19' diameter (6 340 m x 5,80 m diameter)

Production Period : 2010 - 2012

This project was performed as a joint venture.