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SECOND AVENUE SUBWAY PROJECT
MUCK CONVEYANCE SYSTEM69th & 72nd Street Shafts69th & 72nd Street Shafts
APRIL 4, 2011
Current Work Operations at 69th St. Shaft
Step 1: Diesel Crane removes rock with skip pan
Step 2: Skip pan emptied into muck bin on pavement
Step 3: Truck backed in by flagmen for loading
Step 4: loader fills truck from muck bin for transport
Q
7272ndnd Street StationStreet StationMuck Conveyance SystemMuck Conveyance System
2ND Avenue Subway‐72nd St. CavernQ
QProposed 11’ – 9” Sidewalk
QMuck Conveyance System
Full Height Fixed Wall System
QMuck Conveyance System – looking East
QMuck Conveyance System – looking North
QMuck Conveyance System – Widened Sidewalk
QMuck Conveyance System ‐ Animation
QImproved MitigationImproved Mitigation
• Noise• Eliminates diesel crane & loaderEliminates diesel crane & loader• Electric gantry crane• Sound rated wall panelsD i th h t k tt• Drive through truck pattern
• Dust • Enclosed muck storage g• Containerized storage, handling and removal• Cleaner work area, reduced dust
• Emissions• Eliminates diesel emissions (crane & loader)I d k t l f bl ti• Improved smoke control from blasting
Q
7272ndnd Street StationStreet StationMuck Conveyance System OptionMuck Conveyance System Option
QMuck Conveyance System ‐ Option
Roll Up Door & Roof System
QMuck Conveyance System – looking East
QMuck Conveyance System – looking North
QMuck Conveyance System – Widened Sidewalk
QMuck Conveyance System – Staggered Muck Bins
QMuck Conveyance System – Staggered Muck Bins
QMuck Conveyance System – Staggered Muck Bins
QMuck Conveyance System – Staggered Muck Bins
Q4th Floor View From Windows
Q3rd Floor View From Windows
Q2nd Floor View From Windows
QMuck Conveyance System – Day and Night
QMuck Conveyance System – Day and Night
QMuck Conveyance System – Day and Night
QMuck Conveyance System – Day and Night
QMuck Conveyance System
QUESTION AND ANSWERS
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