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DESCRIPTION OF WORK: This project work consists of maintenance dredging the locations to required depths indicated in the table below and shown on the drawings. The placement of the dredged material will be at Disposal Area Crab Island (D/A-C) as shown on the drawings and as directed by the Contracting Officer. Additional Base work also includes bird monitoring and standby time.LOCATION REQUIRED DEPTHRange H to I and Upper Turning 45-foot UTB, 45-foot and 47-footBasin (UTB)Range G to H and Explosive 44-foot and 47-footHandling Basin (EHB)Range E to G and Magnetic 44-footSilencing Facility (MSF) NorthSite Six North (SS-N) 39-footSite Six South (SS-S) and Medium Auxiliary 45-footRepair Dock (ARDM) YokeExplosive Handling Wharves (EHW) 47-footRefit Wharves 47-footSmall Boat Basin 24-footDry Dock Caisson Gate Sill and Dry Dock 46-footCaisson Gate Mooring Facilityb. Option A work consists of supplying additional field cut weir riser boards as requested by the Contracting Officer.c. Option B work consists of secondary maintenance dredging. The locations and required depths are indicated in the table below and shown on the drawings. The placement of the dredged material will be at Disposal Area Crab Island (D/A-C) as shown on the drawings and as directed by the Contracting Officer. Option B work also includes mobilization and demobilization, bird monitoring and standby time.LOCATION REQUIRED DEPTHSite Six South (SS-S) and Medium Auxiliary 45-footRepair Dock (ARDM) YokeSite Six North (SS-N) 39-footExplosive Handling Wharves (EHW) 47-footRefit Wharves 47-footDry Dock Caisson Gate Sill and Dry Dock 46-footCaisson Gate Mooring FacilityOption C work consists of Mobilization/Demobilization for secondary maintenance dredging if demobilization from the site occurs after completing all the Base work.

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