You might have heard the news already, or spent time watching it go up.
Chelsea Milling Company was unanimously granted a temporary request for an exemption to the city’s noise ordinance on Sept. 21.
The company has begun 24-hour construction on its new mixing tower on the south side of its property. The construction includes a 6-floor concrete tower that will be about 105 feet high with the capacity to accommodate four high speed mixing lines according to the company’s letter to the city.
It’s expected that the construction will continue round-the-clock for eight days, the letter states.
“Slip form construction will be used to build the tower, which is the same method used in 2010 to construct the grain silos on the south side of the railroad tracks,” the letter from John Powers, vice president and CFO, states.
He explains that slip form construction is “a sliding-form construction method of pouring vertical concrete structures. … The form is connected to jack rods with hydraulic jacks, which automatically move the form vertically in small increments as the concrete is poured. The pouring is continuous until the top of the structure is reached, allowing for a monolithic poured concrete structure.”
The company did notify neighbors of the construction project that “begins with the manufacture of a fixed form on top of a foundation, with a back-up support and barracking system to ensure that the form maintains its shape during movement. Inner and outer forms create the cavity of the wall, and inside this cavity, reinforcing steel is tied together vertically and horizontally to reinforce the concrete.”
