THE CHALLENGE.

There’s no one-size-fits-all solution for a cooling tower replacement. This is especially true in urban population centers and atop high-rise buildings like where the One Logan cooling tower replacement took place.

The three existing 800-ton towers on the One Logan Square roof were in poor condition and because of the tenant’s data center needs, one tower needed to stay in service during the entire duration of the project.

THE SOLUTION.

To explore all of the possible solutions, Limbach worked with a local cooling tower and heat exchanger provider, to come up with a novel solution to build the towers in place.

The cooling towers would be built by demolishing one tower and building a new tower in its place – piece by piece, on the roof of the 31-story building. Once the new tower was placed in service, then, and only then, could the demo and rebuild of the two other existing towers be completed.

The piping tie-ins would be accomplished in one short system shut down, and the piping supports would be installed around the existing supports to allow both to be in service. All of the new electrical conduit, wiring, and disconnects would be installed ahead of the tower install, and the old system would be cut over to the new in one tie-in. One by one, each new tower was set in place to look over the boulevard below.

Through a collaborative effort by the entire team and careful coordination and planning, our team was able to complete this project within budget, and a month ahead of schedule. This project won the 2019 GBCA Safety Award!