NAVFAC Far East

FEAD Yokosuka Delivers Projects Ahead of Schedule, Extending Life of Dry Dock 6

06/16/19 10:35 PM

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A major overhaul that will extend the service life and capabilities of Dry Dock 6 (DD6) and Pump Facility (J6) at Commander, Fleet Activities Yokosuka, was recently completed ahead of schedule by the Facilities Engineering Acquisition Division (FEAD) Yokosuka. Five projects were concentrated in three areas totaling $15,070,000: pipe replacement in the YSK-J6 Pump House, repair work of the dry dock lighting system and gallery columns, and capstan replacement.

A major overhaul that will extend the service life and capabilities of Dry Dock 6 (DD6) and Pump Facility (J6) at Commander, Fleet Activities Yokosuka, was completed in May ahead of schedule by the Facilities Engineering Acquisition Division (FEAD) Yokosuka.

“These repairs will ensure that docking operations are safe and go a long way towards sustaining this capability for years to come,” said U.S. Naval Ship Repair Facility and Japan Regional Maintenance Center (SRF-JRMC), Cmdr. Mitch Perret, production officer.

There were five projects that were concentrated in three areas totaling $15,070,000: pipe replacement in the YSK-J6 Pump House, repair work of the dry dock lighting system and gallery columns, and capstan replacement, according to Cmdr. Bob Olson, FEAD Yokosuka director. 

In the YSK-J6 Pump House, the discharge and suction pipes were replaced for the first time since being constructed by the Japanese Imperial Navy in 1941. The J6 discharge sluicegate guide rails and a damaged steel beam were also replaced.

Along the top edges of the dry dock, gallery columns were repaired in areas where concrete are spalling, and rebar are severely corroded and/or exposed which significantly weakened its structural integrity for personnel and equipment working alongside during docking operations. All floodlights were replaced with LED types which required extensive electrical system modifications.

Nine capstans were replaced, including new trundle heads and upgraded to 150 horsepower motors. Seven of the capstan control houses were repaired and the remaining two required replacement.

FEAD Yokosuka committed to a late-May 2019 turnover to SRF-JRMC, but completed four projects ahead of schedule by two months in late March and is scheduled to turn over the sluicegate portion in April 2020.

"NAVFAC's on-time completion of the extensive work required to repair and return to service the Navy's largest and most capable overseas dry dock is a huge win,” Perret said.  “It directly supports SRF-JRMC's mission to 'Keep the SEVENTH Fleet Operationally Ready.” 

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