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Helicopter Hoists HVAC Without a Hitch at Lincoln Square Expansion for Ascend Prime Steak & Sushi

Nov. 29, 2017

On Sunday, November 13th, Unimark Construction along with our mechanical subcontractor MacDonald-Miller Facility Solutions, lifted four mechanical units to the roof of the 31 story new Lincoln Square Expansion Tower in Bellevue via helicopter. Due to the size and weight of the units required for this project, the units were unable to be brought up through a typical freight elevator. The lift included two pollution control units weighing 9,000 lbs. and 10,000 lbs. respectively, with their length reaching over 19 ft. It also included two make-up air units, these weighing 1,700 lbs. each with their length reaching 15 ft. MacDonald-Miller worked closely with Croman Corporation, Ness Crane and the FAA to ensure that the entire process ran smoothly. Prior to the helicopter lift, Ness Crane lifted the necessary mechanical units to the top of the Bellevue Square parking structure located at the northeast corner of 100th Avenue NE and NE 4th Street. The two hour helicopter pick-up required street shut down of two city blocks around the Bellevue Square mall, the entire north half of Downtown Park as well as the evacuation of surrounding buildings. Once the area was secure and the helicopter given the okay, it flew from Boeing Field and lifted the equipment from the parking structure to the roof of Lincoln Square. The entire process required the cooperation of dozens of representatives from Unimark, MacDonald-Miller, Ness Crane, National Barricade, Croman Corporation, Bellevue Fire Department and Kemper Development Security Team to ensure the whole process went off without a hitch.

Here are a few photos of the process. Tap photos to expand them and scroll through the entire gallery!


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