Cemetery Brook Drain Tunnel Project Photos
Welcome to the photos page of the CBDT project website! Provided below are current photos showing the status of each of the major project locations, including the TBM Launch Zone and each of the Drop Shafts. Located at the bottom of this webpage are various status photos or images associated with design, planning and construction of the tunnel project.
Site 1 - Launch Zone (Queen City Ave. Bridge)
Launch Trench - Installation of TBM seal (which the boring machine will push through to create an initial seal with the mined soil and TBM).
Site 2 - Drop Shaft (DS) - 1 (Queen City Ave.)
Excavating soil from Drop Shaft 1 from within the support of excavation (SOE) walls.
Site 3 - Drop Shaft (DS) - 2 (Union Street)
Excavating blasted rock from Drop Shaft 2 within the SOE
Site 4 - Drop Shaft (DS) - 3 (Beech Street)
Drilling holes in rock in Drop Shaft 3 to complete a blast that will allow rock to be excavated from the SOE.
Site 5 - Drop Shaft (DS) - 4 (Wilson Street)
Completion of building demolition and site grading, preparation to install SOE for Drop Shaft 4.
Site 6 - Drop Shaft (DS) - 5 (Taylor Street)
Site access road to future location of Drop Shaft 5.
Site 7 - Drop Shaft (DS) - 6 (Massabesic Street)
Site preparation and utility installation for future Drop Shaft 6.
Site 8 - Drop Shaft (DS) - 7 (Mammoth Road)
Installation of a water tap located in Mammoth Road for water supply at future location of Drop Shaft 7.
Site 9 - Consolidation Drainage Piping (Union, S. Willow, Cilley)
Misc Project Photos
Tunnel Boring Machine cutterhead under fabrication in Germany
Tunnel Boring Machine interior with segment mold on conveyor, under fabrication in Germany
Tunnel Boring Machine interior behind the cutterhead, 16 cylinders that help push and drive, under fabrication in Germany
Tunnel Boring Machine interior precast concrete segment conveyor
Tunnel Boring Machine push frame - Used at the start of the tunnel to push the tunneling machine into the ground.