The Borough Assembly approved a change order in the amount of $34,600 for the 300-ton marine hoist purchased by the City and Borough of Wrangell this week.
The city is under contract with Italian firm Ascom S.p.A. to manufacture and assemble the new 300-ton capacity vessel hoist. The bid documents required a backup control system for use in the case of failure of the wireless remote control, which Ascom is providing as a redundant, plug in, wired remote control.
In a memo to the Assembly, Wrangell Public Works Director Carl Johnson explained the reasons behind the change.
“Due to Wrangell’s remoteness from repair personnel in the lower 48 states and to ensure utmost reliability and redundancy, staff has asked that the backup control system be upgraded to include hydraulic controls mounted in an operator’s cab attached to the machine,” Johnson wrote. “This control system would bypass, not just the wireless controller, but also most of the electronics on the hoist.”
The station will be designed so that the operator can ride on the hoist and operate it using a set of hydraulic valves in case of the failure of the main remote control system.
The change order will add the $34,600 amount to the initial bid of $1,315,000.
Wrangell’s Port Commission voted on Thursday, Jan. 3 to accept the bid and purchase a new haul out unit for The Marine Service Center. Ascom S.p.A. a Modena, Italy-based firm, will provide the city with a 300-ton unit to replace the aging 150-ton Marine Travel Lift unit currently in use at the MSC.
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