Site overview with freeze system in background.
Force Main Jacking Shaft
(Microtunnel launch shaft)
Site overview with freeze system in background.
Freeze pipes and manifolds just before covering for excavation work.
Overview of frozen shaft covered with insulation blankets during excavation.
Top view of frozen shaft, with partial wall exposure, as microtunnel machine
installation commences.
Top view of shaft as 10-ft. casing number 146 out of 156 is prepared for jacking.