This project consists of two microtunneling drives to (1) bypass an environmentally sensitive area known as Stone Creek, and (2) go underneath active UPRR tracks. Each drive required the use of an MTS 1700 EPB Tunnel Boring Machine to install 78″ ‘triloc’ casing below sea level. The stone creek drive was 180 LF and the UPRR drive was approximately 350 LF. After casing installation, Drill Tech will perform contact grouting on the casing, installation/fitup of the permanent 66″ mortar lined WSP, and backfill the annulus with cellular grout.