cg9 banner

ISVS completes HVAC work on nine 140-foot icebreaking tugs


Coast Guard Cutter Neah Bay, homeported in Cleveland, Ohio, conducts icebreaking missions throughout the entire Great Lakes system. The vessel was the ninth and final icebreaking tug to receive heating upgrades through the In-Service Vessel Sustainment Program. U.S. Coast Guard file photo by Petty Officer 2nd Class Levi Read

The In-Service Vessel Sustainment (ISVS) Program in partnership with Coast Guard Yard personnel completed scheduled work on Coast Guard Cutter Neah Bay Sept. 22, 2023, successfully marking the conclusion of on-site and mobile road show projects to install heating, ventilation and air conditioning (HVAC) equipment onboard nine 140-foot Bay-class icebreaking tugs that operate throughout Coast Guard Districts 1 and 9.

Over three years, a 12-person project team oversaw a comprehensive plan to update each cutter’s boilers, piping and air handling units and execute related work to aid front-line Coast Guard crews operating in extreme cold weather environments. Efficiencies developed during work on the nine tugs eventually reduced the HVAC project duration from 44 to 24 days.

The ISVS Program restores mission readiness, improves reliability and reduces maintenance costs of the service’s legacy cutter fleet.

For more information: In-Service Vessel Sustainment Program page.